Author: "Tohuvavohu A" - Searchworks@Jio Institute Digital Library Search Results

Your search keyword '"Tohuvavohu A"' showing total 299 results

Start Over Author "Tohuvavohu A"

299 results on '"Tohuvavohu A"'

1. Panning for gold with the Neil Gehrels Swift Observatory: an optimal strategy for finding the counterparts to gravitational wave events

Author: Eyles-Ferris, R. A. J., Evans, P. A., Breeveld, A. A., Cenko, S. B., Dichiara, S., Kennea, J. A., Klingler, N. J., Kuin, N. P. M., Marshall, F. E., Oates, S. R., Page, M. J., Ronchini, S., Siegel, M. H., Tohuvavohu, A., Campana, S., D'Elia, V., Osborne, J. P., Page, K. L., De Pasquale, M., and Troja, E.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: The LIGO, Virgo and KAGRA gravitational wave observatories are currently undertaking their O4 observing run offering the opportunity to discover new electromagnetic counterparts to gravitational wave events. We examine the capability of the Neil Gehrels Swift Observatory (Swift) to respond to these triggers, primarily binary neutron star mergers, with both the UV/Optical Telescope (UVOT) and the X-ray Telescope (XRT). We simulate Swift's response to a trigger under different strategies using model skymaps, convolving these with the 2MPZ catalogue to produce an ordered list of observing fields, deriving the time taken for Swift to reach the correct field and simulating the instrumental responses to modelled kilonovae and short gamma-ray burst afterglows. We find that UVOT using the $u$ filter with an exposure time of order 120 s is optimal for most follow-up observations and that we are likely to detect counterparts in $\sim6$% of all binary neutron star triggers detectable by LVK in O4. We find that the gravitational wave 90% error area and measured distance to the trigger allow us to select optimal triggers to follow-up. Focussing on sources less than 300 Mpc away or 500 Mpc if the error area is less than a few hundred square degrees, distances greater than previously assumed, offer the best opportunity for discovery by Swift with $\sim5 - 30$% of triggers having detection probabilities $\geq 0.5$. At even greater distances, we can further optimise our follow-up by adopting a longer 250 s or 500 s exposure time., Comment: 16 pages, 13 figures. Final version accepted by MNRAS
Published: 2024

2. Swiftly chasing gravitational waves across the sky in real-time

Author: Tohuvavohu, Aaron, Kennea, Jamie A., Roberts, Christopher J., DeLaunay, James, Ronchini, Samuele, Cenko, S. Bradley, Ewing, Becca, Magee, Ryan, Messick, Cody, Sachdev, Surabhi, and Singer, Leo P.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, General Relativity and Quantum Cosmology
Abstract: We introduce a new capability of the Neil Gehrels Swift Observatory, dubbed `continuous commanding,' achieving 10 seconds latency response time on-orbit to unscheduled Target of Opportunity requests. This allows Swift to respond to early warning gravitational-wave detections, rapidly slewing the Burst Alert Telescope (BAT) across the sky to place the GW origin in the BAT field of view at merger time. This will dramatically increase the GW/GRB co-detection rate, and enable prompt arcminute localization of a neutron star merger. We simulate the full Swift response to a GW early warning alert, including input sky maps produced at different warning times, a complete model of Swift's attitude control system, and a full accounting of the latency between the GW detectors and the spacecraft. 60 s of early warning doubles the rate of prompt GRB detections with arcminute position, and 140 s guarantees observation anywhere on the unocculted sky, even with localization areas >> 1000 deg$^2$. While 140 s is beyond current gravitational wave detector sensitivities, 30-70 s is achievable today. We show that the detection yield is now limited by the latency of LIGO/Virgo cyber-infrastructure, and motivate focus on its reduction. Continuous commanding is now a general capability of Swift, significantly increasing its versatility in response to the growing demands of time-domain astrophysics. We demonstrate this potential on an externally triggered Fast Radio Burst, slewing 81 degrees across the sky, and collecting X-ray and UV photons from the source position < 150 s after the trigger was received from the Canadian Hydrogen Intensity Mapping Experiment (CHIME), thereby setting the earliest and deepest such constraints on high energy activity from non-repeating FRBs. The Swift Team invites proposals for novel scientific applications of ultra-low latency UV, X-ray, and gamma-ray observations., Comment: Update to version accepted for publication in ApJL. Comments, questions, and new ideas for applications of ultra-low latency UV, X-ray, and gamma-ray observations are welcome!
Published: 2024

3. Time-Domain And MultiMessenger Astrophysics Communications Science Analysis Group Report

Author: Kennea, Jamie A., Racusin, Judith L., Burns, Eric, Grefenstettte, Brian W., Hounsell, Rebekah A., Hui, C. Michelle, Kocevski, Daniel, Lazio, T. Joseph W., Lesage, Stephen, Pritchard, Tyler A., Tohuvavohu, Aaron, Tomsick, John A., Traore, David, and Wilson-Hodge, Colleen A.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Time-Domain And MultiMessenger (TDAMM) Communications Science Analysis Group (TDAMMCommSAG) was formulated to describe the unique technical challenges of communicating rapidly to and from NASA astrophysics missions studying the most variable, transient, and extreme objects in the Universe. This report describes the study of if and how the transition from current NASA-operated space and ground relays to commercial services will adequately serve these missions. Depending on the individual mission requirements and Concept of Operations (ConOps), TDAMM missions may utilize a rapid low-rate demand access service, a low-rate continuous contact service, low-latency downlink upon demand, or a higher-latency but regular relay service. The specific implementations can vary via space relay or direct to Earth, but requires flexibility and adaptability using modern software infrastructure. The study team reviewed the current state of NASA communications services and future commercial and NASA communications services under study and in development. We explored the communications capabilities driving from the behavior of the astrophysical objects themselves., Comment: 20 page, 1 figure
Published: 2024

4. Beyond CCDs: Characterization of sCMOS detectors for optical astronomy

Author: Khandelwal, Aditya, Jeram, Sarik, Dungee, Ryan, Lau, Albert W. K., Lau, Allison, Sun, Ethen, Van-Lane, Phil, Chen, Shaojie, Tohuvavohu, Aaron, and Li, Ting S.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Modern scientific complementary metal-oxide semiconductor (sCMOS) detectors provide a highly competitive alternative to charge-coupled devices (CCDs), the latter of which have historically been dominant in optical imaging. sCMOS boast comparable performances to CCDs with faster frame rates, lower read noise, and a higher dynamic range. Furthermore, their lower production costs are shifting the industry to abandon CCD support and production in favour of CMOS, making their characterization urgent. In this work, we characterized a variety of high-end commercially available sCMOS detectors to gauge the state of this technology in the context of applications in optical astronomy. We evaluated a range of sCMOS detectors, including larger pixel models such as the Teledyne Prime 95B and the Andor Sona-11, which are similar to CCDs in pixel size and suitable for wide-field astronomy. Additionally, we assessed smaller pixel detectors like the Ximea xiJ and Andor Sona-6, which are better suited for deep-sky imaging. Furthermore, high-sensitivity quantitative sCMOS detectors such as the Hamamatsu Orca-Quest C15550-20UP, capable of resolving individual photoelectrons, were also tested. In-lab testing showed low levels of dark current, read noise, faulty pixels, and fixed pattern noise, as well as linearity levels above $98\%$ across all detectors. The Orca-Quest had particularly low noise levels with a dark current of $0.0067 \pm 0.0003$ e$^-$/s (at $-20^\circ$C with air cooling) and a read noise of $0.37 \pm 0.09$ e$^-$ using its standard readout mode. Our tests revealed that the latest generation of sCMOS detectors excels in optical imaging performance, offering a more accessible alternative to CCDs for future optical astronomy instruments., Comment: SPIE Astronomical Telescopes + Instrumentation, Proceedings Volume 13103, X-Ray, Optical, and Infrared Detectors for Astronomy XI; 131030R (2024)
Published: 2024
Full Text: View/download PDF

5. Swift-BAT GUANO follow-up of gravitational-wave triggers in the third LIGO-Virgo-KAGRA observing run

Author: Raman, Gayathri, Ronchini, Samuele, Delaunay, James, Tohuvavohu, Aaron, Kennea, Jamie A., Parsotan, Tyler, Ambrosi, Elena, Bernardini, Maria Grazia, Campana, Sergio, Cusumano, Giancarlo, D'Ai, Antonino, D'Avanzo, Paolo, D'Elia, Valerio, De Pasquale, Massimiliano, Dichiara, Simone, Evans, Phil, Hartmann, Dieter, Kuin, Paul, Melandri, Andrea, O'Brien, Paul, Osborne, Julian P., Page, Kim, Palmer, David M., Sbarufatti, Boris, Tagliaferri, Gianpiero, Troja, Eleonora, Abac, A. G., Abbott, R., Abe, H., Abouelfettouh, I., Acernese, F., Ackley, K., Adamcewicz, C., Adhicary, S., Adhikari, N., Adhikari, R. X., Adkins, V. K., Adya, V. B., Affeldt, C., Agarwal, D., Agathos, M., Aguiar, O. D., Aguilar, I., Aiello, L., Ain, A., Akutsu, T., Albanesi, S., Alfaidi, R. A., Al-Jodah, A., Alléné, C., Allocca, A., Al-Shammari, S., Altin, P. A., Alvarez-Lopez, S., Amato, A., Amez-Droz, L., Amorosi, A., Amra, C., Anand, S., Ananyeva, A., Anderson, S. B., Anderson, W. G., Andia, M., Ando, M., Andrade, T., Andres, N., Andrés-Carcasona, M., Andrić, T., Anglin, J., Ansoldi, S., Antelis, J. M., Antier, S., Aoumi, M., Appavuravther, E. Z., Appert, S., Apple, S. K., Arai, K., Araya, A., Araya, M. C., Areeda, J. S., Aritomi, N., Armato, F., Arnaud, N., Arogeti, M., Aronson, S. M., Ashton, G., Aso, Y., Assiduo, M., Melo, S. Assis de Souza, Aston, S. M., Astone, P., Aubin, F., AultONeal, K., Avallone, G., Babak, S., Badaracco, F., Badger, C., Bae, S., Bagnasco, S., Bagui, E., Bai, Y., Baier, J. G., Bajpai, R., Baka, T., Ball, M., Ballardin, G., Ballmer, S. W., Banagiri, S., Banerjee, B., Bankar, D., Baral, P., Barayoga, J. C., Barish, B. C., Barker, D., Barneo, P., Barone, F., Barr, B., Barsotti, L., Barsuglia, M., Barta, D., Barthelmy, S. D., Barton, M. A., Bartos, I., Basak, S., Basalaev, A., Bassiri, R., Basti, A., Bawaj, M., Baxi, P., Bayley, J. C., Baylor, A. C., Bazzan, M., Bécsy, B., Bedakihale, V. M., Beirnaert, F., Bejger, M., Belardinelli, D., Bell, A. S., Benedetto, V., Beniwal, D., Benoit, W., Bentley, J. D., Yaala, M. Ben, Bera, S., Berbel, M., Bergamin, F., Berger, B. K., Bernuzzi, S., Beroiz, M., Berry, C. P. L., Bersanetti, D., Bertolini, A., Betzwieser, J., Beveridge, D., Bevins, N., Bhandare, R., Bhardwaj, U., Bhatt, R., Bhattacharjee, D., Bhaumik, S., Bhowmick, S., Bianchi, A., Bilenko, I. A., Billingsley, G., Binetti, A., Bini, S., Birnholtz, O., Biscoveanu, S., Bisht, A., Bitossi, M., Bizouard, M. -A., Blackburn, J. K., Blair, C. D., Blair, D. G., Bobba, F., Bode, N., Bogaert, G., Boileau, G., Boldrini, M., Bolingbroke, G. N., Bolliand, A., Bonavena, L. D., Bondarescu, R., Bondu, F., Bonilla, E., Bonilla, M. S., Bonino, A., Bonnand, R., Booker, P., Borchers, A., Boschi, V., Bose, S., Bossilkov, V., Boudart, V., Boumerdassi, A., Bozzi, A., Bradaschia, C., Brady, P. R., Braglia, M., Branch, A., Branchesi, M., Breschi, M., Briant, T., Brillet, A., Brinkmann, M., Brockill, P., Brockmueller, E., Brooks, A. F., Brown, D. D., Brozzetti, M. L., Brunett, S., Bruno, G., Bruntz, R., Bryant, J., Bucci, F., Buchanan, J., Bulashenko, O., Bulik, T., Bulten, H. J., Buonanno, A., Burtnyk, K., Buscicchio, R., Buskulic, D., Buy, C., Byer, R. L., Davies, G. S. Cabourn, Cabras, G., Cabrita, R., Cadonati, L., Cagnoli, G., Cahillane, C., Bustillo, J. Calderón, Callaghan, J. D., Callister, T. A., Calloni, E., Camp, J. B., Canepa, M., Santoro, G. Caneva, Cannavacciuolo, M., Cannon, K. C., Cao, H., Cao, Z., Capistran, L. A., Capocasa, E., Capote, E., Carapella, G., Carbognani, F., Carlassara, M., Carlin, J. B., Carpinelli, M., Carrillo, G., Carter, J. J., Carullo, G., Diaz, J. Casanueva, Casentini, C., Castaldi, G., Castro-Lucas, S. Y., Caudill, S., Cavaglià, M., Cavalieri, R., Cella, G., Cerdá-Durán, P., Cesarini, E., Chaibi, W., Chakraborty, P., Subrahmanya, S. Chalathadka, Chan, C., Chan, J. C. L., Chan, K. H. M., Chan, M., Chan, W. L., Chandra, K., Chang, R. -J., Chanial, P., Chao, S., Chapman-Bird, C., Charlton, E. L., Charlton, P., Chassande-Mottin, E., Chatterjee, C., Chatterjee, Debarati, Chatterjee, Deep, Chaturvedi, M., Chaty, S., Chen, A., Chen, A. H. -Y., Chen, D., Chen, H., Chen, H. Y., Chen, K. H., Chen, X., Chen, Yi-Ru, Chen, Yanbei, Chen, Yitian, Cheng, H. P., Chessa, P., Cheung, H. T., Chia, H. Y., Chiadini, F., Chiang, C., Chiarini, G., Chiba, A., Chiba, R., Chierici, R., Chincarini, A., Chiofalo, M. L., Chiummo, A., Chou, C., Choudhary, S., Christensen, N., Chua, S. S. Y., Chung, K. W., Ciani, G., Ciecielag, P., Cieślar, M., Cifaldi, M., Ciobanu, A. A., Ciolfi, R., Clara, F., Clark, J. A., Clarke, T. A., Clearwater, P., Clesse, S., Cleva, F., Coccia, E., Codazzo, E., Cohadon, P. -F., Colleoni, M., Collette, C. G., Collins, J., Colloms, S., Colombo, A., Colpi, M., Compton, C. M., Conti, L., Cooper, S. J., Corbitt, T. R., Cordero-Carrión, I., Corezzi, S., Cornish, N. J., Corsi, A., Cortese, S., Costa, C. A., Cottingham, R., Coughlin, M. W., Couineaux, A., Coulon, J. -P., Countryman, S. T., Coupechoux, J. -F., Cousins, B., Couvares, P., Coward, D. M., Cowart, M. J., Coyne, D. C., Coyne, R., Craig, K., Creed, R., Creighton, J. D. E., Creighton, T. D., Cremonese, P., Criswell, A. W., Crockett-Gray, J. C. G., Croquette, M., Crouch, R., Crowder, S. G., Cudell, J. R., Cullen, T. J., Cumming, A., Cuoco, E., Cusinato, M., Dabadie, P., Canton, T. Dal, Dall'Osso, S., Dálya, G., D'Angelo, B., Danilishin, S., D'Antonio, S., Danzmann, K., Darroch, K. E., Dartez, L. P., Dasgupta, A., Datta, S., Dattilo, V., Daumas, A., Davari, N., Dave, I., Davenport, A., Davier, M., Davies, T. F., Davis, D., Davis, L., Davis, M. C., Daw, E. J., Dax, M., De Bolle, J., Deenadayalan, M., Degallaix, J., De Laurentis, M., Deléglise, S., Del Favero, V., De Lillo, F., Dell'Aquila, D., Del Pozzo, W., De Marco, F., De Matteis, F., D'Emilio, V., Demos, N., Dent, T., Depasse, A., DePergola, N., De Pietri, R., De Rosa, R., De Rossi, C., De Simone, R., Dhani, A., Dhurandhar, S., Diab, R., Díaz, M. C., Di Cesare, M., Dideron, G., Didio, N. A., Dietrich, T., Di Fiore, L., Di Fronzo, C., Di Giovanni, F., Di Giovanni, M., Di Girolamo, T., Diksha, D., Di Michele, A., Ding, J., Di Pace, S., Di Palma, I., Di Renzo, F., Divyajyoti, Dmitriev, A., Doctor, Z., Dohmen, E., Doleva, P. P., Donahue, L., D'Onofrio, L., Donovan, F., Dooley, K. L., Dooney, T., Doravari, S., Dorosh, O., Drago, M., Driggers, J. C., Drori, Y., Ducoin, J. -G., Dunn, L., Dupletsa, U., D'Urso, D., Duval, H., Duverne, P. -A., Dwyer, S. E., Eassa, C., Ebersold, M., Eckhardt, T., Eddolls, G., Edelman, B., Edo, T. B., Edy, O., Effler, A., Eichholz, J., Einsle, H., Eisenmann, M., Eisenstein, R. A., Ejlli, A., Emma, M., Engelby, E., Engl, A. J., Errico, L., Essick, R. C., Estellés, H., Estevez, D., Etzel, T., Evans, M., Evstafyeva, T., Ewing, B. E., Ezquiaga, J. M., Fabrizi, F., Faedi, F., Fafone, V., Fairhurst, S., Fan, P. C., Farah, A. M., Farr, B., Farr, W. M., Favaro, G., Favata, M., Fays, M., Fazio, M., Feicht, J., Fejer, M. M., Fenyvesi, E., Ferguson, D. L., Ferrante, I., Ferreira, T. A., Fidecaro, F., Fiori, A., Fiori, I., Fishbach, M., Fisher, R. P., Fittipaldi, R., Fiumara, V., Flaminio, R., Fleischer, S. M., Fleming, L. S., Floden, E., Foley, E. M., Fong, H., Font, J. A., Fornal, B., Forsyth, P. W. F., Franceschetti, K., Franchini, N., Frasca, S., Frasconi, F., Mascioli, A. Frattale, Frei, Z., Freise, A., Freitas, O., Frey, R., Frischhertz, W., Fritschel, P., Frolov, V. V., Fronzé, G. G., Fuentes-Garcia, M., Fujii, S., Fukunaga, I., Fulda, P., Fyffe, M., Gabella, W. E., Gadre, B., Gair, J. R., Galaudage, S., Gallardo, S., Gallego, B., Gamba, R., Gamboa, A., Ganapathy, D., Ganguly, A., Gaonkar, S. G., Garaventa, B., Garcia-Bellido, J., García-Núñez, C., García-Quirós, C., Gardner, J. W., Gardner, K. A., Gargiulo, J., Garron, A., Garufi, F., Gasbarra, C., Gateley, B., Gayathri, V., Gemme, G., Gennai, A., George, J., George, R., Gerberding, O., Gergely, L., Ghadiri, N., Ghosh, Archisman, Ghosh, Shaon, Ghosh, Shrobana, Ghosh, Suprovo, Ghosh, Tathagata, Giacoppo, L., Giaime, J. A., Giardina, K. D., Gibson, D. R., Gibson, D. T., Gier, C., Giri, P., Gissi, F., Gkaitatzis, S., Glanzer, J., Gleckl, A. E., Glotin, F., Godfrey, J., Godwin, P., Goebbels, N. L., Goetz, E., Golomb, J., Lopez, S. Gomez, Goncharov, B., González, G., Goodarzi, P., Goodwin-Jones, A. W., Gosselin, M., Göttel, A. S., Gouaty, R., Gould, D. W., Goyal, S., Grace, B., Grado, A., Graham, V., Granados, A. E., Granata, M., Granata, V., Argianas, L. Granda, Gras, S., Grassia, P., Gray, C., Gray, R., Greco, G., Green, A. C., Green, S. M., Green, S. R., Gretarsson, A. M., Gretarsson, E. M., Griffith, D., Griffiths, W. L., Griggs, H. L., Grignani, G., Grimaldi, A., Grimaud, C., Grote, H., Gruson, A. S., Guerra, D., Guetta, D., Guidi, G. M., Guimaraes, A. R., Gulati, H. K., Gulminelli, F., Gunny, A. M., Guo, H., Guo, W., Guo, Y., Gupta, Anchal, Gupta, Anuradha, Gupta, Ish, Gupta, N. C., Gupta, P., Gupta, S. K., Gupta, T., Gupte, N., Gurav, R., Gurs, J., Gutierrez, N., Guzman, F., Haba, D., Haberland, M., Haegel, L., Hain, G., Haino, S., Hall, E. D., Hamilton, E. Z., Hammond, G., Han, W. -B., Haney, M., Hanks, J., Hanna, C., Hannam, M. D., Hannuksela, O. A., Hanselman, A. G., Hansen, H., Hanson, J., Harada, R., Harder, T., Haris, K., Harmark, T., Harms, J., Harry, G. M., Harry, I. W., Haskell, B., Haster, C. -J., Hathaway, J. S., Haughian, K., Hayakawa, H., Hayama, K., Healy, J., Heffernan, A., Heidmann, A., Heintze, M. C., Heinze, J., Heinzel, J., Heitmann, H., Hellman, F., Hello, P., Helmling-Cornell, A. F., Hemming, G., Hendry, M., Heng, I. S., Hennes, E., Hennig, J. -S., Hennig, M., Henshaw, C., Hernandez, A., Hertog, T., Heurs, M., Hewitt, A. L., Higginbotham, S., Hild, S., Hill, P., Hill, S., Himemoto, Y., Hines, A. S., Hirata, N., Hirose, C., Ho, J., Hoang, S., Hochheim, S., Hofman, D., Holland, N. A., Holley-Bockelmann, K., Hollows, I. J., Holmes, Z. J., Holz, D. E., Hong, C., Hornung, J., Hoshino, S., Hough, J., Hourihane, S., Howell, E. J., Hoy, C. G., Hoyland, D., Hrishikesh, C. A., Hsieh, H. -F., Hsiung, C., Hsu, H. C., Hsu, S. -C., Hsu, W. -F., Hu, P., Hu, Q., Huang, H. Y., Huang, Y. -J., Huang, Y., Huang, Y. T., Huddart, A. D., Hughey, B., Hui, D. C. Y., Hui, V., Hur, R., Husa, S., Huxford, R., Huynh-Dinh, T., Iakovlev, A., Iandolo, G. A., Iess, A., Inayoshi, K., Inoue, Y., Iorio, G., Irwin, J., Isi, M., Ismail, M. A., Itoh, Y., Iwaya, M., Iyer, B. R., JaberianHamedan, V., Jacquet, P. -E., Jadhav, S. J., Jadhav, S. P., Jain, T., James, A. L., James, P. A., Jamshidi, R., Jan, A. Z., Jani, K., Janiurek, L., Janquart, J., Janssens, K., Janthalur, N. N., Jaraba, S., Jaranowski, P., Jasal, P., Jaume, R., Javed, W., Jennings, A., Jia, W., Jiang, J., Jin, H. -B., Johansmeyer, K., Johns, G. R., Johnson, N. A., Johnston, R., Johny, N., Jones, D. H., Jones, D. I., Jones, R., Jose, S., Joshi, P., Ju, L., Jung, K., Junker, J., Juste, V., Kajita, T., Kalaghatgi, C., Kalogera, V., Kamiizumi, M., Kanda, N., Kandhasamy, S., Kang, G., Kanner, J. B., Kapadia, S. J., Kapasi, D. P., Karat, S., Karathanasis, C., Karki, S., Kashyap, R., Kasprzack, M., Kastaun, W., Kato, J., Kato, T., Katsanevas, S., Katsavounidis, E., Katzman, W., Kaur, T., Kaushik, R., Kawabe, K., Keitel, D., Kelley-Derzon, J., Kennington, J., Kesharwani, R., Key, J. S., Khadka, S., Khalili, F. Y., Khan, F., Khan, I., Khanam, T., Khazanov, E. A., Khursheed, M., Kiendrebeogo, W., Kijbunchoo, N., Kim, C., Kim, J. C., Kim, K., Kim, M. H., Kim, S., Kim, W. S., Kim, Y. -M., Kimball, C., Kimura, N., Kinley-Hanlon, M., Kinnear, M., Kissel, J. S., Kiyota, T., Klimenko, S., Klinger, T., Knee, A. M., Knust, N., Koch, P., Koehlenbeck, S. M., Koekoek, G., Kohri, K., Kokeyama, K., Koley, S., Kolitsidou, P., Kolstein, M., Komori, K., Kong, A. K. H., Kontos, A., Korobko, M., Kossak, R. V., Kou, X., Koushik, A., Kouvatsos, N., Kovalam, M., Koyama, N., Kozak, D. B., Kranzhoff, S. L., Kringel, V., Krishnendu, N. V., Królak, A., Kuehn, G., Kuijer, P., Kulkarni, S., Ramamohan, A. Kulur, Kumar, A., Kumar, Praveen, Kumar, Prayush, Kumar, Rahul, Kumar, Rakesh, Kume, J., Kuns, K., Kuroyanagi, S., Kuwahara, S., Kwak, K., Kwan, K., Lacaille, G., Lagabbe, P., Laghi, D., Lai, S., Laity, A. H., Lakkis, M. H., Lalande, E., Lalleman, M., Landry, M., Lane, B. B., Lang, R. N., Lange, J., Lantz, B., La Rana, A., La Rosa, I., Lartaux-Vollard, A., Lasky, P. D., Lawrence, J., Laxen, M., Lazzarini, A., Lazzaro, C., Leaci, P., LeBohec, S., Lecoeuche, Y. K., Lee, H. M., Lee, H. W., Lee, K., Lee, R. -K., Lee, R., Lee, S., Lee, Y., Legred, I. N., Lehmann, J., Lehner, L., Lemaître, A., Lenti, M., Leonardi, M., Leonova, E., Lequime, M., Leroy, N., Lesovsky, M., Letendre, N., Lethuillier, M., Levesque, C., Levin, Y., Leyde, K., Li, A. K. Y., Li, K. L., Li, T. G. F., Li, X., Lin, Chien-Yu, Lin, Chun-Yu, Lin, E. T., Lin, F., Lin, H., Lin, L. C. -C., Linde, F., Linker, S. D., Littenberg, T. B., Liu, A., Liu, G. C., Liu, Jian, Llamas, F., Llobera-Querol, J., Lo, R. K. L., Locquet, J. -P., London, L., Longo, A., Lopez, D., Portilla, M. Lopez, Lorenzini, M., Loriette, V., Lormand, M., Losurdo, G., Lott IV, T. P., Lough, J. D., Loughlin, H. A., Lousto, C. O., Lowry, M. J., Lück, H., Lumaca, D., Lundgren, A. P., Lussier, A. W., Ma, L. -T., Ma, S., Ma'arif, M., Macas, R., MacInnis, M., Maciy, R. R., Macleod, D. M., MacMillan, I. A. O., Macquet, A., Macri, D., Maeda, K., Maenaut, S., Hernandez, I. Magaña, Magare, S. S., Magazzù, C., Magee, R. M., Maggio, E., Maggiore, R., Magnozzi, M., Mahesh, M., Mahesh, S., Maini, M., Majhi, S., Majorana, E., Makarem, C. N., Malaquias-Reis, J. A., Maliakal, S., Malik, A., Man, N., Mandic, V., Mangano, V., Mannix, B., Mansell, G. L., Manske, M., Mantovani, M., Mapelli, M., Marchesoni, F., Pina, D. Marín, Marion, F., Márka, S., Márka, Z., Markakis, C., Markosyan, A. S., Markowitz, A., Maros, E., Marquina, A., Marsat, S., Martelli, F., Martin, I. W., Martin, R. M., Martinez, B. B., Martinez, M., Martinez, V., Martini, A., Martinovic, K., Martins, J. C., Martynov, D. V., Marx, E. J., Massaro, L., Masserot, A., Masso-Reid, M., Mastrodicasa, M., Mastrogiovanni, S., Mateu-Lucena, M., Matiushechkina, M., Matsuyama, M., Mavalvala, N., Maxwell, N., McCarrol, G., McCarthy, R., McClelland, D. E., McCormick, S., McCuller, L., McGhee, G. I., McGowan, K. B. M., Mchedlidze, M., McIsaac, C., McIver, J., McKinney, K., McLeod, A., McRae, T., McWilliams, S. T., Meacher, D., Mehta, A. K., Meijer, Q., Melatos, A., Mellaerts, S., Menendez-Vazquez, A., Menoni, C. S., Mercer, R. A., Mereni, L., Merfeld, K., Merilh, E. L., Mérou, J. R., Merritt, J. D., Merzougui, M., Messenger, C., Messick, C., Meyer-Conde, M., Meylahn, F., Mhaske, A., Miani, A., Miao, H., Michaloliakos, I., Michel, C., Michimura, Y., Middleton, H., Miller, A. L., Miller, S., Millhouse, M., Milotti, E., Minenkov, Y., Mio, N., Mir, Ll. M., Mirasola, L., Miravet-Tenés, M., Miritescu, C. -A., Mishra, A. K., Mishra, A., Mishra, C., Mishra, T., Mitchell, A. L., Mitchell, J. G., Mitra, S., Mitrofanov, V. P., Mitselmakher, G., Mittleman, R., Miyakawa, O., Miyamoto, S., Miyoki, S., Mo, G., Mobilia, L., Modafferi, L. M., Mohapatra, S. R. P., Mohite, S. R., Molina-Ruiz, M., Mondal, C., Mondin, M., Montani, M., Moore, C. J., Morales, M., Moraru, D., Morawski, F., More, A., More, S., Moreno, C., Moreno, G., Morisaki, S., Moriwaki, Y., Morras, G., Moscatello, A., Mourier, P., Mours, B., Mow-Lowry, C. M., Mozzon, S., Muciaccia, F., Mukherjee, D., Mukherjee, Samanwaya, Mukherjee, Soma, Mukherjee, Subroto, Mukherjee, Suvodip, Mukund, N., Mullavey, A., Munch, J., Mungioli, C. L., Munn, M., Oberg, W. R. Munn, Murakoshi, M., Murray, P. G., Muusse, S., Nadji, S. L., Nagar, A., Nagarajan, N., Nagler, K. N., Nakamura, K., Nakano, H., Nakano, M., Nandi, D., Napolano, V., Narayan, P., Nardecchia, I., Narola, H., Naticchioni, L., Nayak, R. K., Neil, B. F., Neilson, J., Nelson, A., Nelson, T. J. N., Nery, M., Neunzert, A., Ng, S., Nguyen, C., Nguyen, P., Quynh, L. Nguyen, Nichols, S. A., Nielsen, A. B., Nieradka, G., Niko, A., Nishino, Y., Nishizawa, A., Nissanke, S., Nitoglia, E., Niu, W., Nocera, F., Norman, M., North, C., Novak, J., Siles, J. F. Nuño, Nurbek, G., Nuttall, L. K., Obayashi, K., Oberling, J., O'Dell, J., Oertel, M., Offermans, A., Oganesyan, G., Oh, J. J., Oh, K., Oh, S. H., O'Hanlon, T., Ohashi, M., Ohkawa, M., Ohme, F., Ohta, H., Oliveira, A. S., Oliveri, R., Oloworaran, V., O'Neal, B., Oohara, K., O'Reilly, B., Ormsby, N. D., Orselli, M., O'Shaughnessy, R., Oshima, Y., Oshino, S., Ossokine, S., Osthelder, C., Ottaway, D. J., Ouzriat, A., Overmier, H., Owen, B. J., Pace, A. E., Pagano, R., Page, M. A., Pai, A., Pai, S. A., Pal, A., Pal, S., Palaia, M. A., Palashov, O., Pálfi, M., Palma, P. P., Palomba, C., Pan, K. C., Panda, P. K., Panebianco, L., Pang, P. T. H., Pannarale, F., Pant, B. C., Panther, F. H., Panzer, C. D., Paoletti, F., Paoli, A., Paolone, A., Papalexakis, E. E., Papalini, L., Papigkiotis, G., Parisi, A., Park, J., Parker, W., Pascale, G., Pascucci, D., Pasqualetti, A., Passaquieti, R., Passuello, D., Patane, O., Patel, M., Pathak, D., Pathak, M., Patra, A., Patricelli, B., Patron, A. S., Paul, S., Payne, E., Pearce, T., Pedraza, M., Pegna, R., Pele, A., Arellano, F. E. Peña, Penn, S., Penuliar, M. D., Perego, A., Pereira, A., Perez, J. J., Périgois, C., Perkins, C. C., Perna, G., Perreca, A., Perret, J., Perriès, S., Perry, J. W., Pesios, D., Petrillo, C., Pfeiffer, H. P., Pham, H., Pham, K. A., Phukon, K. S., Phurailatpam, H., Piccinni, O. J., Pichot, M., Piendibene, M., Piergiovanni, F., Pierini, L., Pierra, G., Pierro, V., Pietrzak, M., Pillas, M., Pilo, F., Pinard, L., Pineda-Bosque, C., Pinto, I. M., Pinto, M., Piotrzkowski, B. J., Pirello, M., Pitkin, M. D., Placidi, A., Placidi, E., Planas, M. L., Plastino, W., Poggiani, R., Polini, E., Pompili, L., Poon, J., Porcelli, E., Portell, J., Porter, E. K., Posnansky, C., Poulton, R., Powell, J., Pracchia, M., Pradhan, B. K., Pradier, T., Prajapati, A. K., Prasai, K., Prasanna, R., Prasia, P., Pratten, G., Principe, M., Prodi, G. A., Prokhorov, L., Prosposito, P., Prudenzi, L., Puecher, A., Pullin, J., Punturo, M., Puosi, F., Puppo, P., Pürrer, M., Qi, H., Qin, J., Quéméner, G., Quetschke, V., Quigley, C., Quinonez, P. J., Quitzow-James, R., Raab, F. J., Raaijmakers, G., Radulesco, N., Raffai, P., Rail, S. X., Raja, S., Rajan, C., Rajbhandari, B., Ramirez, D. S., Ramirez, K. E., Vidal, F. A. Ramis, Ramos-Buades, A., Rana, D., Randel, E., Ranjan, S., Rapagnani, P., Ratto, B., Rawat, S., Ray, A., Raymond, V., Razzano, M., Read, J., Payo, M. Recaman, Regimbau, T., Rei, L., Reid, S., Reid, S. W., Reitze, D. H., Relton, P., Renzini, A., Rettegno, P., Revenu, B., Reza, A., Rezac, M., Rezaei, A. S., Ricci, F., Ricci, M., Richards, D., Richardson, C. J., Richardson, J. W., Rijal, A., Riles, K., Riley, H. K., Rinaldi, S., Rittmeyer, J., Robertson, C., Robinet, F., Robinson, M., Rocchi, A., Rolland, L., Rollins, J. G., Romanelli, M., Romano, A. E., Romano, R., Romero, A., Romero-Shaw, I. M., Romie, J. H., Roocke, T. J., Rosa, L., Rosauer, T. J., Rose, C. A., Rosińska, D., Ross, M. P., Rossello, M., Rowan, S., Roy, S. K., Roy, S., Rozza, D., Ruggi, P., Morales, E. Ruiz, Ruiz-Rocha, K., Sachdev, S., Sadecki, T., Sadiq, J., Saffarieh, P., Sah, M. R., Saha, S. S., Sainrat, T., Menon, S. Sajith, Sakai, K., Sakellariadou, M., Sako, T., Sakon, S., Salafia, O. S., Salces-Carcoba, F., Salconi, L., Saleem, M., Salemi, F., Sallé, M., Salvador, S., Sanchez, A., Sanchez, E. J., Sanchez, J. H., Sanchez, L. E., Sanchis-Gual, N., Sanders, J. R., Sänger, E. M., Saravanan, T. R., Sarin, N., Sasli, A., Sassi, P., Sassolas, B., Satari, H., Sato, R., Sato, S., Sato, Y., Sauter, O., Savage, R. L., Sawada, T., Sawant, H. L., Sayah, S., Schaetzl, D., Scheel, M., Scheuer, J., Schiworski, M. G., Schmidt, P., Schmidt, S., Schnabel, R., Schneewind, M., Schofield, R. M. S., Schouteden, K., Schuler, H., Schulte, B. W., Schutz, B. F., Schwartz, E., Scott, J., Scott, S. M., Seetharamu, T. C., Seglar-Arroyo, M., Sekiguchi, Y., Sellers, D., Sengupta, A. S., Sentenac, D., Seo, E. G., Seo, J. W., Sequino, V., Sergeev, A., Serra, M., Servignat, G., Setyawati, Y., Shaffer, T., Shah, U. S., Shahriar, M. S., Shaikh, M. A., Shams, B., Shao, L., Sharma, A. K., Sharma, P., Sharma-Chaudhary, S., Shawhan, P., Shcheblanov, N. S., Shen, B., Shikano, Y., Shikauchi, M., Shimode, K., Shinkai, H., Shiota, J., Shoemaker, D. H., Shoemaker, D. M., Short, R. W., ShyamSundar, S., Sider, A., Siegel, H., Sieniawska, M., Sigg, D., Silenzi, L., Simmonds, M., Singer, L. P., Singh, A., Singh, D., Singh, M. K., Singha, A., Sintes, A. M., Sipala, V., Skliris, V., Slagmolen, B. J. J., Slaven-Blair, T. J., Smetana, J., Smith, J. R., Smith, L., Smith, R. J. E., Smith, W. J., Soldateschi, J., Somala, S. N., Somiya, K., Soni, K., Soni, S., Sordini, V., Sorrentino, F., Sorrentino, N., Soulard, R., Souradeep, T., Southgate, A., Sowell, E., Spagnuolo, V., Spencer, A. P., Spera, M., Spinicelli, P., Srivastava, A. K., Stachurski, F., Steer, D. A., Steinlechner, J., Steinlechner, S., Stergioulas, N., Stevens, P., StPierre, M., Strang, L. C., Stratta, G., Strong, M. D., Strunk, A., Sturani, R., Stuver, A. L., Suchenek, M., Sudhagar, S., Sueltmann, N., Sullivan, A. G., Sullivan, K. D., Sun, L., Sunil, S., Sur, A., Suresh, J., Sutton, P. J., Suzuki, Takamasa, Suzuki, Takanori, Swinkels, B. L., Syx, A., Szczepańczyk, M. J., Szewczyk, P., Tacca, M., Tagoshi, H., Tait, S. C., Takahashi, H., Takahashi, R., Takamori, A., Takatani, K., Takeda, H., Takeda, M., Talbot, C. J., Talbot, C., Tamaki, M., Tamanini, N., Tanabe, D., Tanaka, K., Tanaka, S. J., Tanaka, T., Tanasijczuk, A. J., Tang, D., Tanioka, S., Tanner, D. B., Tao, L., Tapia, R. D., Martín, E. N. Tapia San, Tarafder, R., Taranto, C., Taruya, A., Tasson, J. D., Teloi, M., Tenorio, R., Themann, H., Theodoropoulos, A., Thirugnanasambandam, M. P., Thomas, L. M., Thomas, M., Thomas, P., Thompson, J. E., Thondapu, S. R., Thorne, K. A., Thrane, E., Tissino, J., Tiwari, A., Tiwari, Shubhanshu, Tiwari, Srishti, Tiwari, V., Todd, M. R., Toivonen, A. M., Toland, K., Tolley, A. E., Tomaru, T., Tomita, K., Tomura, T., Tong-Yu, C., Toriyama, A., Toropov, N., Torres-Forné, A., Torrie, C. I., Toscani, M., Melo, I. Tosta e, Tournefier, E., Trani, A. A., Trapananti, A., Travasso, F., Traylor, G., Trenado, J., Trevor, M., Tringali, M. C., Tripathee, A., Troiano, L., Trovato, A., Trozzo, L., Trudeau, R. J., Tsang, T. T. L., Tso, R., Tsuchida, S., Tsukada, L., Tsutsui, T., Turbang, K., Turconi, M., Turski, C., Ubach, H., Ubhi, A. S., Uchikata, N., Uchiyama, T., Udall, R. P., Uehara, T., Ueno, K., Unnikrishnan, C. S., Ushiba, T., Utina, A., Vacatello, M., Vahlbruch, H., Vaidya, N., Vajente, G., Vajpeyi, A., Valdes, G., Valencia, J., Valentini, M., Vallejo-Peña, S. A., Vallero, S., Valsan, V., van Bakel, N., van Beuzekom, M., van Dael, M., Brand, J. F. J. van den, Broeck, C. Van Den, Vander-Hyde, D. C., van der Sluys, M., Van de Walle, A., van Dongen, J., Vandra, K., van Haevermaet, H., van Heijningen, J. V., Vanosky, J., van Putten, M. H. P. M., van Ranst, Z., van Remortel, N., Vardaro, M., Vargas, A. F., Varma, V., Vasúth, M., Vecchio, A., Vedovato, G., Veitch, J., Veitch, P. J., Venikoudis, S., Venneberg, J., Verdier, P., Verkindt, D., Verma, B., Verma, P., Verma, Y., Vermeulen, S. M., Veske, D., Vetrano, F., Veutro, A., Vibhute, A. M., Viceré, A., Vidyant, S., Viets, A. D., Vijaykumar, A., Vilkha, A., Villa-Ortega, V., Vincent, E. T., Vinet, J. -Y., Viret, S., Virtuoso, A., Vitale, S., Vocca, H., Voigt, D., von Reis, E. R. G., von Wrangel, J. S. A., Vyatchanin, S. P., Wade, L. E., Wade, M., Wagner, K. J., Walet, R. C., Walker, M., Wallace, G. S., Wallace, L., Wang, H., Wang, J. Z., Wang, W. H., Wang, Z., Waratkar, G., Ward, R. L., Warner, J., Was, M., Washimi, T., Washington, N. Y., Watarai, D., Wayt, K. E., Weaver, B., Weaving, C. R., Webster, S. A., Weinert, M., Weinstein, A. J., Weiss, R., Weller, C. M., Weller, R. A., Wellmann, F., Wen, L., Weßels, P., Wette, K., Whelan, J. T., White, D. D., Whiting, B. F., Whittle, C., Wildberger, J. B., Wilk, O. S., Wilken, D., Willetts, K., Williams, D., Williams, M. J., Williams, N. S., Willis, J. L., Willke, B., Wils, M., Wipf, C. C., Woan, G., Woehler, J., Wofford, J. K., Wolfe, N. E., Wong, D., Wong, H. T., Wong, H. W. Y., Wong, I. C. F., Wright, J. L., Wright, M., Wu, C., Wu, D. S., Wu, H., Wysocki, D. M., Xiao, L., Xu, V. A., Xu, Y., Yadav, N., Yamamoto, H., Yamamoto, K., Yamamoto, M., Yamamoto, T. S., Yamamoto, T., Yamamura, S., Yamazaki, R., Yan, S., Yan, T., Yang, F. W., Yang, F., Yang, K. Z., Yang, L. -C., Yang, Y., Yarbrough, Z., Yeh, S. -W., Yelikar, A. B., Yeung, S. M. C., Yin, X., Yokoyama, J., Yokozawa, T., Yoo, J., Yu, H., Yuzurihara, H., Zadrożny, A., Zannelli, A. J., Zanolin, M., Zeeshan, M., Zelenova, T., Zendri, J. -P., Zeoli, M., Zerrad, M., Zevin, M., Zhang, A. C., Zhang, J., Zhang, L., Zhang, R., Zhang, T., Zhang, Y., Zhao, C., Zhao, Yue, Zhao, Yuhang, Zheng, Y., Zhong, H., Zhong, S., Zhou, R., Zhu, Z. -H., Zimmerman, A. B., Zucker, M. E., and Zweizig, J.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, General Relativity and Quantum Cosmology
Abstract: We present results from a search for X-ray/gamma-ray counterparts of gravitational-wave (GW) candidates from the third observing run (O3) of the LIGO-Virgo-KAGRA (LVK) network using the Swift Burst Alert Telescope (Swift-BAT). The search includes 636 GW candidates received in low latency, 86 of which have been confirmed by the offline analysis and included in the third cumulative Gravitational-Wave Transient Catalogs (GWTC-3). Targeted searches were carried out on the entire GW sample using the maximum--likelihood NITRATES pipeline on the BAT data made available via the GUANO infrastructure. We do not detect any significant electromagnetic emission that is temporally and spatially coincident with any of the GW candidates. We report flux upper limits in the 15-350 keV band as a function of sky position for all the catalog candidates. For GW candidates where the Swift-BAT false alarm rate is less than 10$^{-3}$ Hz, we compute the GW--BAT joint false alarm rate. Finally, the derived Swift-BAT upper limits are used to infer constraints on the putative electromagnetic emission associated with binary black hole mergers., Comment: 50 pages, 10 figures, 4 tables
Published: 2024

6. Constraining possible $\gamma$-ray burst emission from GW230529 using Swift-BAT and Fermi-GBM

Author: Ronchini, Samuele, Bala, Suman, Wood, Joshua, Delaunay, James, Dichiara, Simone, Kennea, Jamie A., Parsotan, Tyler, Raman, Gayathri, Tohuvavohu, Aaron, Adhikari, Naresh, Bhat, Narayana P., Biscoveanu, Sylvia, Bissaldi, Elisabetta, Burns, Eric, Campana, Sergio, Chandra, Koustav, Cleveland, William H., Dalessi, Sarah, De Pasquale, Massimiliano, García-Bellido, Juan, Gasbarra, Claudio, Giles, Misty M., Gupta, Ish, Hartmann, Dieter, Hristov, Boyan A., Hui, Michelle C., Kashyap, Rahul, Kocevski, Daniel, Mailyan, Bagrat, Malacaria, Christian, Nakano, Hiroyuki, Principe, Giacomo, Roberts, Oliver J., Sathyaprakash, Bangalore, Shao, Lijing, Troja, Eleonora, Veres, Péter, and Wilson-Hodge, Colleen A.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, General Relativity and Quantum Cosmology
Abstract: GW230529 is the first compact binary coalescence detected by the LIGO-Virgo-KAGRA collaboration with at least one component mass confidently in the lower mass-gap, corresponding to the range 3-5$M_{\odot}$. If interpreted as a neutron star-black hole merger, this event has the most symmetric mass ratio detected so far and therefore has a relatively high probability of producing electromagnetic (EM) emission. However, no EM counterpart has been reported. At the merger time $t_0$, Swift-BAT and Fermi-GBM together covered 100$\%$ of the sky. Performing a targeted search in a time window $[t_0-20 \text{s},t_0+20 \text{s}]$, we report no detection by the Swift-BAT and the Fermi-GBM instruments. Combining the position-dependent $\gamma-$ray flux upper limits and the gravitational-wave posterior distribution of luminosity distance, sky localization and inclination angle of the binary, we derive constraints on the characteristic luminosity and structure of the jet possibly launched during the merger. Assuming a top-hat jet structure, we exclude at 90$\%$ credibility the presence of a jet which has at the same time an on-axis isotropic luminosity $\gtrsim 10^{48}$ erg s$^{-1}$, in the bolometric band 1 keV-10 MeV, and a jet opening angle $\gtrsim 15$ deg. Similar constraints are derived testing other assumptions about the jet structure profile. Excluding GRB 170817A, the luminosity upper limits derived here are below the luminosity of any GRB observed so far., Comment: 18 pages, 1 table, 11 figures
Published: 2024

7. Soft X-ray prompt emission from the high-redshift gamma-ray burst EP240315a

Author: Liu, Y., Sun, H., Xu, D., Svinkin, D. S., Delaunay, J., Tanvir, N. R., Gao, H., Zhang, C., Chen, Y., Wu, X.-F., Zhang, B., Yuan, W., An, J., Bruni, G., Frederiks, D. D., Ghirlanda, G., Hu, J.-W., Li, A., Li, C.-K., Li, J.-D., Malesani, D. B., Piro, L., Raman, G., Ricci, R., Troja, E., Vergani, S. D., Wu, Q.-Y., Yang, J., Zhang, B.-B., Zhu, Z.-P., de Ugarte Postigo, A., Demin, A. G., Dobie, D., Fan, Z., Fu, S.-Y., Fynbo, J. P. U., Geng, J.-J., Gianfagna, G., Hu, Y.-D., Huang, Y.-F., Jiang, S.-Q., Jonker, P. G., Julakanti, Y., Kennea, J. A., Kokomov, A. A., Kuulkers, E., Lei, W.-H., Leung, J. K., Levan, A. J., Li, D.-Y., Li, Y., Littlefair, S. P., Liu, X., Lysenko, A. L., Ma, Y.-N., Martin-Carrillo, A., O’Brien, P., Parsotan, T., Quirola-Vásquez, J., Ridnaia, A. V., Ronchini, S., Rossi, A., Mata-Sánchez, D., Schneider, B., Shen, R.-F., Thakur, A. L., Tohuvavohu, A., Torres, M. A. P., Tsvetkova, A. E., Ulanov, M. V., Wei, J.-J., Xiao, D., Yin, Y.-H. I., Bai, M., Burwitz, V., Cai, Z.-M., Chen, F.-S., Chen, H.-L., Chen, T.-X., Chen, W., Chen, Y.-F., Chen, Y.-H., Cheng, H.-Q., Cordier, B., Cui, C.-Z., Cui, W.-W., Dai, Y.-F., Dai, Z.-G., Eder, J., Eyles-Ferris, R. A. J., Fan, D.-W., Feldman, C., Feng, H., Feng, Z., Friedrich, P., Gao, X., Gonzalez, J.-F., Guan, J., Han, D.-W, Han, J., Hou, D.-J., Hu, H.-B., Hu, T., Huang, M.-H., Huo, J., Hutchinson, I., Ji, Z., Jia, S.-M., Jia, Z.-Q., Jiang, B.-W., Jin, C.-C., Jin, G., Jin, J.-J., Keereman, A., Lerman, H., Li, J.-F., Li, L.-H., Li, M.-S., Li, W., Li, Z.-D., Lian, T.-Y., Liang, E.-W., Ling, Z.-X., Liu, C.-Z., Liu, H.-Y., Liu, H.-Q., Liu, M.-J., Liu, Y.-R., Lu, F.-J., Lü, H.-J., Luo, L.-D., Ma, F. L., Ma, J., Mao, J.-R., Mao, X., McHugh, M., Meidinger, N., Nandra, K., Osborne, J. P., Pan, H.-W., Pan, X., Ravasio, M. E., Rau, A., Rea, N., Rehman, U., Sanders, J., Santovincenzo, A., Song, L.-M., Su, J., Sun, L.-J., Sun, S.-L., Sun, X.-J., Tan, Y.-Y., Tang, Q.-J., Tao, Y.-H., Tong, J.-Z., Wang, C.-Y., Wang, H., Wang, J., Wang, L., Wang, W.-X., Wang, X.-F., Wang, X.-Y., Wang, Y.-L., Wang, Y.-S., Wei, D.-M., Willingale, R., Xiong, S.-L., Xu, H.-T., Xu, J.-J., Xu, X.-P., Xu, Y.-F., Xu, Z., Xue, C.-B., Xue, Y.-L., Yan, A.-L., Yang, F., Yang, H.-N., Yang, X.-T., Yang, Y.-J, Yu, Y.-W., Zhang, J., Zhang, M., Zhang, S.-N., Zhang, W.-D., Zhang, W.-J., Zhang, Y.-H., Zhang, Z., Zhang, Z., Zhang, Z.-L., Zhao, D.-H., Zhao, H.-S., Zhao, X.-F., Zhao, Z.-J., Zhou, L.-X., Zhou, Y.-L., Zhu, Y.-X., Zhu, Z.-C., and Zuo, X.-X.
Published: 2025
Full Text: View/download PDF

8. Soft X-ray prompt emission from a high-redshift gamma-ray burst EP240315a

Author: Liu, Y., Sun, H., Xu, D., Svinkin, D. S., Delaunay, J., Tanvir, N. R., Gao, H., Zhang, C., Chen, Y., Wu, X. -F., Zhang, B., Yuan, W., An, J., Bruni, G., Frederiks, D. D., Ghirlanda, G., Hu, J. -W., Li, A., Li, C. -K., Li, J. -D., Malesani, D. B., Piro, L., Raman, G., Ricci, R., Troja, E., Vergani, S. D., Wu, Q. -Y., Yang, J., Zhang, B. -B., Zhu, Z. -P., Postigo, A. de Ugarte, Demin, A. G., Dobie, D., Fan, Z., Fu, S. -Y., Fynbo, J. P. U., Geng, J. -J., Gianfagna, G., Hu, Y. -D., Huang, Y. -F., Jiang, S. -Q., Jonker, P. G., Julakanti, Y., Kennea, J. A., Kokomov, A. A., Kuulkers, E., Lei, W. -H., Leung, J. K., Levan, A. J., Li, D. -Y., Li, Y., Littlefair, S. P., Liu, X., Lysenko, A. L., Ma, Y. -N., Martin-Carrillo, A., O'Brien, P., Parsotan, T., Quirola-Vasquez, J., Ridnaia, A. V., Ronchini, S., Rossi, A., Mata-Sanchez, D., Schneider, B., Shen, R. -F., Thakur, A. L., Tohuvavohu, A., Torres, M. A. P., Tsvetkova, A. E., Ulanov, M. V., Wei, J. -J., Xiao, D., Yin, Y. -H. I., Bai, M., Burwitz, V., Cai, Z. -M., Chen, F. -S., Chen, H. -L., Chen, T. -X., Chen, W., Chen, Y. -F., Chen, Y. -H., Cheng, H. -Q., Cui, C. -Z., Cui, W. -W., Dai, Y. -F., Dai, Z. -G., Eder, J., Fan, D. -W., Feldman, C., Feng, H., Feng, Z., Friedrich, P., Gao, X., Guan, J., Han, D. -W, Han, J., Hou, D. -J., Hu, H. -B., Hu, T., Huang, M. -H., Huo, J., Hutchinson, I., Ji, Z., Jia, S. -M., Jia, Z. -Q., Jiang, B. -W., Jin, C. -C., Jin, G., Jin, J. -J., Keereman, A., Lerman, H., Li, J. -F., Li, L. -H., Li, M. -S., Li, W., Li, Z. -D., Lian, T. -Y., Liang, E. -W., Ling, Z. -X., Liu, C. -Z., Liu, H. -Y., Liu, H. -Q., Liu, M. -J., Liu, Y. -R., Lu, F. -J., LU, H. -J., Luo, L. -D., Ma, F. L., Ma, J., Mao, J. -R., Mao, X., McHugh, M., Meidinger, N., Nandra, K., Osborne, J. P., Pan, H. -W., Pan, X., Ravasio, M. E., Rau, A., Rea, N., Rehman, U., Sanders, J., Santovincenzo, A., Song, L. -M., Su, J., Sun, L. -J., Sun, S. -L., Sun, X. -J., Tan, Y. -Y., Tang, Q. -J., Tao, Y. -H., Tong, J. -Z., Wang, H., Wang, J., Wang, L., Wang, W. -X., Wang, X. -F., Wang, X. -Y., Wang, Y. -L., Wang, Y. -S., Wei, D. -M., Willingale, R., Xiong, S. -L., Xu, H. -T., Xu, J. -J., Xu, X. -P., Xu, Y. -F., Xu, Z., Xue, C. -B., Xue, Y. -L., Yan, A. -L., Yang, F., Yang, H. -N., Yang, X. -T., Yang, Y. -J, Yu, Y. -W., Zhang, J., Zhang, M., Zhang, S. -N., Zhang, W. -D., Zhang, W. -J., Zhang, Y. -H., Zhang, Z., Zhang, Z. -L., Zhao, D. -H., Zhao, H. -S., Zhao, X. -F., Zhao, Z. -J., Zhou, L. -X., Zhou, Y. -L., Zhu, Y. -X., Zhu, Z. -C., and Zuo, X. -X.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Long gamma-ray bursts (GRBs) are believed to originate from core collapse of massive stars. High-redshift GRBs can probe the star formation and reionization history of the early universe, but their detection remains rare. Here we report the detection of a GRB triggered in the 0.5--4 keV band by the Wide-field X-ray Telescope (WXT) on board the Einstein Probe (EP) mission, designated as EP240315a, whose bright peak was also detected by the Swift Burst Alert Telescope and Konus-Wind through off-line analyses. At a redshift of $z=4.859$, EP240315a showed a much longer and more complicated light curve in the soft X-ray band than in gamma-rays. Benefiting from a large field-of-view ($\sim$3600 deg$^2$) and a high sensitivity, EP-WXT captured the earlier engine activation and extended late engine activity through a continuous detection. With a peak X-ray flux at the faint end of previously known high-$z$ GRBs, the detection of EP240315a demonstrates the great potential for EP to study the early universe via GRBs., Comment: 41 pages, 8 figures, 7 tables
Published: 2024

9. Windows on the Universe: Establishing the Infrastructure for a Collaborative Multi-messenger Ecosystem

Author: The 2023 Windows on the Universe Workshop White Paper Working Group, Ahumada, T., Andrews, J. E., Antier, S., Blaufuss, E., Brady, P. R., Brazier, A. M., Burns, E., Cenko, S. B., Chandra, P., Chatterjee, D., Corsi, A., Coughlin, M. W., Coulter, D. A., Fu, S., Goldstein, A., Guy, L. P., Hooper, E. J., Howell, S. B., Humensky, T. B., Kennea, J. A., Jarrett, S. M., Lau, R. M., Lewis, T. R., Lu, L., Matheson, T., Miller, B. W., Narayan, G., Nikutta, R., Rajagopal, J. K., Rest, A., Ruiz-Rocha, K. M., Runnoe, J., Sand, D. J., Santander, M., Solares, H. A. A., Soraisam, M. D., Street, R. A., Tohuvavohu, A., Vieira, J., Vieregg, A., Vigeland, S. J., Vitale, S., White, N. E., Wyatt, S. D., and Yuan, T.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: In this White Paper, we present recommendations for the scientific community and funding agencies to foster the infrastructure for a collaborative multi-messenger and time-domain astronomy (MMA/TDA) ecosystem. MMA/TDA is poised for breakthrough discoveries in the coming decade. In much the same way that expanding beyond the optical bandpass revealed entirely new and unexpected discoveries, cosmic messengers beyond light (i.e., gravitational waves, neutrinos, and cosmic rays) open entirely new windows to answer some of the most fundamental questions in (astro)physics: heavy element synthesis, equation of state of dense matter, particle acceleration, etc. This field was prioritized as a frontier scientific pursuit in the 2020 Decadal Survey on Astronomy and Astrophysics via its "New Windows on the Dynamic Universe" theme. MMA/TDA science presents technical challenges distinct from those experienced in other disciplines. Successful observations require coordination across myriad boundaries -- different cosmic messengers, ground vs. space, international borders, etc. -- all for sources that may not be well localized, and whose brightness may be changing rapidly with time. Add that all of this work is undertaken by real human beings, with distinct backgrounds, experiences, cultures, and expectations, that often conflict. To address these challenges and help MMA/TDA realize its full scientific potential in the coming decade (and beyond), the second in a series of community workshops sponsored by the U.S. National Science Foundation (NSF) and NASA titled "Windows on the Universe: Establishing the Infrastructure for a Collaborative Multi-Messenger Ecosystem" was held on October 16-18, 2023 in Tucson, AZ. Here we present the primary recommendations from this workshop focused on three key topics -- hardware, software, and people and policy. [abridged], Comment: Workshop white paper
Published: 2024

10. UV to near-IR observations of the DART-Dimorphos collision

Author: Ofek, E. O., Kushnir, D., Polishook, D., Waxman, E., Tohuvavohu, A., Ben-Ami, S., Katz, B., Gnat, O., Strotjohann, N. L., Segre, E., Blumenzweig, A., Sofer-Rimalt, Y., Yaron, O., Gal-Yam, A., Shvartzvald, Y., Engel, M., Cenko, S. B., and Hershko, O.
Subjects: Astrophysics - Earth and Planetary Astrophysics
Abstract: The impact of the Double Asteroid Redirection Test (DART) spacecraft with Dimorphos allows us to study asteroid collision physics, including momentum transfer, the ejecta properties, and the visibility of such events in the Solar System. We report observations of the DART impact in the ultraviolet (UV), visible light, and near-infrared (IR) wavelengths. The observations support the existence of at least two separate components of the ejecta: a fast and a slow component. The fast-ejecta component is composed of a gaseous phase, moving at about 1.6 km/s with a mass of <10^4 kg. The fast ejecta is detected in the UV and visible light, but not in the near-IR $z$-band observations. Fitting a simplified optical thickness model to these observations allows us to constrain some of the properties of the fast ejecta, including its scattering efficiency and the opacity of the gas. The slow ejecta component is moving at typical velocities of up to about 10 m/s. It is composed of micrometer-size particles, that have a scattering efficiency, at the direction of the observer, of the order of 10^-3 and a total mass of about 10^6 kg. The larger particles in the slow ejecta, whose size is bound to be in the range between ~1 mm to ~1 m, likely have a scattering efficiency larger than that of the pre-impact Didymos system., Comment: Submitted to MNRAS
Published: 2023

11. A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-Wave Candidates from the Third Gravitational-wave Observing Run

Author: Fletcher, C., Wood, J., Hamburg, R., Veres, P., Hui, C. M., Bissaldi, E., Briggs, M. S., Burns, E., Cleveland, W. H., Giles, M. M., Goldstein, A., Hristov, B. A., Kocevski, D., Lesage, S., Mailyan, B., Malacaria, C., Poolakkil, S., von Kienlin, A., Wilson-Hodge, C. A., Team, The Fermi Gamma-ray Burst Monitor, Crnogorčević, M., DeLaunay, J., Tohuvavohu, A., Caputo, R., Cenko, S. B., Laha, S., Parsotan, T., Abbott, R., Abe, H., Acernese, F., Ackley, K., Adhikari, N., Adhikari, R. X., Adkins, V. K., Adya, V. B., Affeldt, C., Agarwal, D., Agathos, M., Agatsuma, K., Aggarwal, N., Aguiar, O. D., Aiello, L., Ain, A., Ajith, P., Akutsu, T., Albanesi, S., Alfaidi, R. A., Allocca, A., Altin, P. A., Amato, A., Anand, C., Anand, S., Ananyeva, A., Anderson, S. B., Anderson, W. G., Ando, M., Andrade, T., Andres, N., Andrés-Carcasona, M., Andríc, T., Angelova, S. V., Ansoldi, S., Antelis, J. M., Antier, S., Apostolatos, T., Appavuravther, E. Z., Appert, S., Apple, S. K., Arai, K., Araya, A., Araya, M. C., Areeda, J. S., Arène, M., Aritomi, N., Arnaud, N., Arogeti, M., Aronson, S. M., Arun, K. G., Asada, H., Asali, Y., Ashton, G., Aso, Y., Assiduo, M., Melo, S. Assis de Souza, Aston, S. M., Astone, P., Aubin, F., AultONeal, K., Austin, C., Babak, S., Badaracco, F., Bader, M. K. M., Badger, C., Bae, S., Bae, Y., Baer, A. M., Bagnasco, S., Bai, Y., Baird, J., Bajpai, R., Baka, T., Ball, M., Ballardin, G., Ballmer, S. W., Balsamo, A., Baltus, G., Banagiri, S., Banerjee, B., Bankar, D., Barayoga, J. C., Barbieri, C., Barish, B. C., Barker, D., Barneo, P., Barone, F., Barr, B., Barsotti, L., Barsuglia, M., Barta, D., Bartlett, J., Barton, M. A., Bartos, I., Basak, S., Bassiri, R., Basti, A., Bawaj, M., Bayley, J. C., Bazzan, M., Becher, B. R., Becsy, B., Bedakihale, V. M., Beirnaert, F., Bejger, M., Belahcene, I., Benedetto, V., Beniwal, D., Benjamin, M. G., Bennett, T. F., Bentley, J. D., BenYaala, M., Bera, S., Berbel, M., Bergamin, F., Berger, B. K., Bernuzzi, S., Berry, C. P. L., Bersanetti, D., Bertolini, A., Betzwieser, J., Beveridge, D., Bhandare, R., Bhandari, A. V., Bhardwaj, U., Bhatt, R., Bhattacharjee, D., Bhaumik, S., Bianchi, A., Bilenko, I. A., Billingsley, G., Bini, S., Birney, R., Birnholtz, O., Biscans, S., Bischi, M., Biscoveanu, S., Bisht, A., Biswas, B., Bitossi, M., Bizouard, M. A., Blackburn, J. K., Blair, C. D., Blair, D. G., Blair, R. M., Bobba, F., Bode, N., Boër, M., Bogaert, G., Boldrini, M., Bolingbroke, G. N., Bonavena, L. D., Bondu, F., Bonilla, E., Bonnand, R., Booker, P., Boom, B. A., Bork, R., Boschi, V., Bose, N., Bose, S., Bossilkov, V., Boudart, V., Bouffanais, Y., Bozzi, A., Bradaschia, C., Brady, P. R., Bramley, A., Branch, A., Branchesi, M., Brau, J. E., Breschi, M., Briant, T., Briggs, J. H., Brillet, A., Brinkmann, M., Brockill, P., Brooks, A. F., Brooks, J., Brown, D. D., Brunett, S., Bruno, G., Bruntz, R., Bryant, J., Bucci, F., Bulik, T., Bulten, H. J., Buonanno, A., Burtnyk, K., Buscicchio, R., Buskulic, D., Buy, C., Byer, R. L., Davies, G. S. Cabourn, Cabras, G., Cabrita, R., Cadonati, L., Caesar, M., Cagnoli, G., Cahillane, C., Bustillo, J. Calderòn, Callaghan, J. D., Callister, T. A., Calloni, E., Cameron, J., Camp, J. B., Canepa, M., Canevarolo, S., Cannavacciuolo, M., Cannon, K. C., Cao, H., Cao, Z., Capocasa, E., Capote, E., Carapella, G., Carbognani, F., Carlassara, M., Carlin, J. B., Carney, M. F., Carpinelli, M., Carrillo, G., Carullo, G., Carver, T. L., Díaz, J. Casanueva, Casentini, C., Castaldi, G., Caudill, S., Cavaglià, M., Cavalier, F., Cavalieri, R., Cella, G., Cerdá-Durán, P., Cesarini, E., Chaibi, W., Subrahmanya, S. Chalathadka, Champion, E., Chan, C. H., Chan, C., Chan, C. L., Chan, K., Chan, M., Chandra, K., Chang, I. P., Chanial, P., Chao, S., Chapman-Bird, C., Charlton, P., Chase, E. A., Chassande-Mottin, E., Chatterjee, C., Chatterjee, Debarati, Chatterjee, Deep, Chaturvedi, M., Chaty, S., Chen, C., Chen, D., Chen, H. Y., Chen, J., Chen, K., Chen, X., Chen, Y. B., Chen, Y. R., Chen, Z., Cheng, H., Cheong, C. K., Cheung, H. Y., Chia, H. Y., Chiadini, F., Chiang, C. Y., Chiarini, G., Chierici, R., Chincarini, A., Chiofalo, M. L., Chiummo, A., Choudhary, R. K., Choudhary, S., Christensen, N., Chu, Q., Chu, Y. K., Chua, S. S. Y., Chung, K. W., Ciani, G., Ciecielag, P., Cieślar, M., Cifaldi, M., Ciobanu, A. A., Ciolfi, R., Cipriano, F., Clara, F., Clark, J. A., Clearwater, P., Clesse, S., Cleva, F., Coccia, E., Codazzo, E., Cohadon, P. F., Cohen, D. E., Colleoni, M., Collette, C. G., Colombo, A., Colpi, M., Compton, C. M., Constancio Jr., M., Conti, L., Cooper, S. J., Corban, P., Corbitt, T. R., Cordero-Carrión, I., Corezzi, S., Corley, K. R., Cornish, N. J., Corre, D., Corsi, A., Cortese, S., Costa, C. A., Cotesta, R., Cottingham, R., Coughlin, M. W., Coulon, J. P., Countryman, S. T., Cousins, B., Couvares, P., Coward, D. M., Cowart, M. J., Coyne, D. C., Coyne, R., Creighton, J. D. E., Creighton, T. D., Criswell, A. W., Croquette, M., Crowder, S. G., Cudell, J. R., Cullen, T. J., Cumming, A., Cummings, R., Cunningham, L., Cuoco, E., lo, M. Cury, Dabadie, P., Canton, T. Dal, Dall'Osso, S., Dálya, G., Dana, A., D'Angelo, B., Danilishin, S., D'Antonio, S., Danzmann, K., Darsow-Fromm, C., Dasgupta, A., Datrier, L. E. H., Datta, Sayak, Datta, Sayantani, Dattilo, V., Dave, I., Davier, M., Davis, D., Davis, M. C., Daw, E. J., Dean, R., DeBra, D., Deenadayalan, M., Degallaix, J., De Laurentis, M., Deléglise, S., Del Favero, V., De Lillo, F., De Lillo, N., Dell'Aquila, D., Del Pozzo, W., DeMarchi, L. M., De Matteis, F., D'Emilio, V., Demos, N., Dent, T., Depasse, A., De Pietri, R., De Rosa, R., De Rossi, C., DeSalvo, R., De Simone, R., Dhurandhar, S., D'iaz, M. C., Didio, N. A., Dietrich, T., Di Fiore, L., Di Fronzo, C., Di Giorgio, C., Di Giovanni, F., Di Giovanni, M., Di Girolamo, T., Di Lieto, A., Di Michele, A., Ding, B., Di Pace, S., Di Palma, I., Di Renzo, F., Divakarla, A. K., Dmitriev, A., Doctor, Z., Donahue, L., D'Onofrio, L., Donovan, F., Dooley, K. L., Doravari, S., Drago, M., Driggers, J. C., Drori, Y., Ducoin, J. G., Dupej, P., Dupletsa, U., Durante, O., D'Urso, D., Duverne, P. A., Dwyer, S. E., Eassa, C., Easter, P. J., Ebersold, M., Eckhardt, T., Eddolls, G., Edelman, B., Edo, T. B., Edy, O., Effler, A., Eguchi, S., Eichholz, J., Eikenberry, S. S., Eisenmann, M., Eisenstein, R. A., Ejlli, A., Engelby, E., Enomoto, Y., Errico, L., Essick, R. C., Estellés, H., Estevez, D., Etienne, Z., Etzel, T., Evans, M., Evans, T. M., Evstafyeva, T., Ewing, B. E., Fabrizi, F., Faedi, F., Fafone, V., Fair, H., Fairhurst, S., Fan, P. C., Farah, A. M., Farinon, S., Farr, B., Farr, W. M., Fauchon-Jones, E. J., Favaro, G., Favata, M., Fays, M., Fazio, M., Feicht, J., Fejer, M. M., Fenyvesi, E., Ferguson, D. L., Fernandez-Galiana, A., Ferrante, I., Ferreira, T. A., Fidecaro, F., Figura, P., Fiori, A., Fiori, I., Fishbach, M., Fisher, R. P., Fittipaldi, R., Fiumara, V., Flaminio, R., Floden, E., Fong, H. K., Font, J. A., Fornal, B., Forsyth, P. W. F., Franke, A., Frasca, S., Frasconi, F., Freed, J. P., Frei, Z., Freise, A., Freitas, O., Frey, R., Fritschel, P., Frolov, V. V., Fronzé, G. G., Fujii, Y., Fujikawa, Y., Fujimoto, Y., Fulda, P., Fyffe, M., Gabbard, H. A., Gabella, W. E., Gadre, B. U., Gair, J. R., Gais, J., Galaudage, S., Gamba, R., Ganapathy, D., Ganguly, A., Gao, D., Gaonkar, S. G., Garaventa, B., Núñez, C. García, García-Quirós, C., Garufi, F., Gateley, B., Gayathri, V., Ge, G. G., Gemme, G., Gennai, A., George, J., Gerberding, O., Gergely, L., Gewecke, P., Ghonge, S., Ghosh, Abhirup, Ghosh, Archisman, Ghosh, Shaon, Ghosh, Shrobana, Ghosh, Tathagata, Giacomazzo, B., Giacoppo, L., Giaime, J. A., Giardina, K. D., Gibson, D. R., Gier, C., Giesler, M., Giri, P., Gissi, F., Gkaitatzis, S., Glanzer, J., Gleckl, A. E., Godwin, P., Goetz, E., Goetz, R., Gohlke, N., Golomb, J., Goncharov, B., Gonzalez, G., Gosselin, M., Gouaty, R., Gould, D. W., Goyal, S., Grace, B., Grado, A., Graham, V., Granata, M., Granata, V., Grant, A., Gras, S., Grassia, P., Gray, C., Gray, R., Greco, G., Green, A. C., Green, R., Gretarsson, A. M., Gretarsson, E. M., Griffith, D., Griffiths, W. L., Griggs, H. L., Grignani, G., Grimaldi, A., Grimes, E., Grimm, S. J., Grote, H., Grunewald, S., Gruning, P., Gruson, A. S., Guerra, D., Guidi, G. M., Guimaraes, A. R., Guixe, G., Gulati, H. K., Gunny, A. M., Guo, H. K., Guo, Y., Gupta, Anchal, Gupta, Anuradha, Gupta, I. M., Gupta, P., Gupta, S. K., Gustafson, R., Guzman, F., Ha, S., Hadiputrawan, I. P. W., Haegel, L., Haino, S., Halim, O., Hall, E. D., Hamilton, E. Z., Hammond, G., Han, W. B., Haney, M., Hanks, J., Hanna, C., Hannam, M. D., Hannuksela, O., Hansen, H., Hansen, T. J., Hanson, J., Harder, T., Haris, K., Harms, J., Harry, G. M., Harry, I. W., Hartwig, D., Hasegawa, K., Haskell, B., Haster, C. J., Hathaway, J. S., Hattori, K., Haughian, K., Hayakawa, H., Hayama, K., Hayes, F. J., Healy, J., Heidmann, A., Heidt, A., Heintze, M. C., Heinze, J., Heinzel, J., Heitmann, H., Hellman, F., Hello, P., Helmling-Cornell, A. F., Hemming, G., Hendry, M., Heng, I. S., Hennes, E., Hennig, J., Hennig, M. H., Henshaw, C., Hernandez, A. G., Vivanco, F. Hernandez, Heurs, M., Hewitt, A. L., Higginbotham, S., Hild, S., Hill, P., Himemoto, Y., Hines, A. S., Hirata, N., Hirose, C., Ho, T. C., Hochheim, S., Hofman, D., Hohmann, J. N., Holcomb, D. G., Holland, N. A., Hollows, I. J., Holmes, Z. J., Holt, K., Holz, D. E., Hong, Q., Hough, J., Hourihane, S., Howell, E. J., Hoy, C. G., Hoyland, D., Hreibi, A., Hsieh, B. H., Hsieh, H. F., Hsiung, C., Hsu, Y., Huang, H. Y., Huang, P., Huang, Y. C., Huang, Y. J., Huang, Yiting, Huang, Yiwen, Hübner, M. T., Huddart, A. D., Hughey, B., Hui, D. C. Y., Hui, V., Husa, S., Huttner, S. H., Huxford, R., Huynh-Dinh, T., Ide, S., Idzkowski, B., Iess, A., Inayoshi, K., Inoue, Y., Iosif, P., Isi, M., Isleif, K., Ito, K., Itoh, Y., Iyer, B. R., JaberianHamedan, V., Jacqmin, T., Jacquet, P. E., Jadhav, S. J., Jadhav, S. P., Jain, T., James, A. L., Jan, A. Z., Jani, K., Janquart, J., Janssens, K., Janthalur, N. N., Jaranowski, P., Jariwala, D., Jaume, R., Jenkins, A. C., Jenner, K., Jeon, C., Jia, W., Jiang, J., Jin, H. B., Johns, G. R., Johnston, R., Jones, A. W., Jones, D. I., Jones, P., Jones, R., Joshi, P., Ju, L., Jue, A., Jung, P., Jung, K., Junker, J., Juste, V., Kaihotsu, K., Kajita, T., Kakizaki, M., Kalaghatgi, C. V., Kalogera, V., Kamai, B., Kamiizumi, M., Kanda, N., Kandhasamy, S., Kang, G., Kanner, J. B., Kao, Y., Kapadia, S. J., Kapasi, D. P., Karathanasis, C., Karki, S., Kashyap, R., Kasprzack, M., Kastaun, W., Kato, T., Katsanevas, S., Katsavounidis, E., Katzman, W., Kaur, T., Kawabe, K., Kawaguchi, K., Kéfélian, F., Keitel, D., Key, J. S., Khadka, S., Khalili, F. Y., Khan, S., Khanam, T., Khazanov, E. A., Khetan, N., Khursheed, M., Kijbunchoo, N., Kim, A., Kim, C., Kim, J. C., Kim, J., Kim, K., Kim, W. S., Kim, Y. M., Kimball, C., Kimura, N., Kinley-Hanlon, M., Kirchhoff, R., Kissel, J. S., Klimenko, S., Klinger, T., Knee, A. M., Knowles, T. D., Knust, N., Knyazev, E., Kobayashi, Y., Koch, P., Koekoek, G., Kohri, K., Kokeyama, K., Koley, S., Kolitsidou, P., Kolstein, M., Komori, K., Kondrashov, V., Kong, A. K. H., Kontos, A., Koper, N., Korobko, M., Kovalam, M., Koyama, N., Kozak, D. B., Kozakai, C., Kringel, V., Krishnendu, N. V., Królak, A., Kuehn, G., Kuei, F., Kuijer, P., Kulkarni, S., Kumar, A., Kumar, Prayush, Kumar, Rahul, Kumar, Rakesh, Kume, J., Kuns, K., Kuromiya, Y., Kuroyanagi, S., Kwak, K., Lacaille, G., Lagabbe, P., Laghi, D., Lalande, E., Lalleman, M., Lam, T. L., Lamberts, A., Landry, M., Lane, B. B., Lang, R. N., Lange, J., Lantz, B., La Rosa, I., Lartaux-Vollard, A., Lasky, P. D., Laxen, M., Lazzarini, A., Lazzaro, C., Leaci, P., Leavey, S., LeBohec, S., Lecoeuche, Y. K., Lee, E., Lee, H. M., Lee, H. W., Lee, K., Lee, R., Legred, I. N., Lehmann, J., Lemaitre, A., Lenti, M., Leonardi, M., Leonova, E., Leroy, N., Letendre, N., Levesque, C., Levin, Y., Leviton, J. N., Leyde, K., Li, A. K. Y., Li, B., Li, J., Li, K. L., Li, P., Li, T. G. F., Li, X., Lin, C. Y., Lin, E. T., Lin, F. K., Lin, F. L., Lin, H. L., Lin, L. C. C., Linde, F., Linker, S. D., Linley, J. N., Littenberg, T. B., Liu, G. C., Liu, J., Liu, K., Liu, X., Llamas, F., Lo, R. K. L., Lo, T., London, L. T., Longo, A., Lopez, D., Portilla, M. Lopez, Lorenzini, M., Loriette, V., Lormand, M., Losurdo, G., Lott, T. P., Lough, J. D., Lousto, C. O., Lovelace, G., Lucaccioni, J. F., Lück, H., Lumaca, D., Lundgren, A. P., Luo, L. W., Lynam, J. E., Maarif, M., Macas, R., Machtinger, J. B., MacInnis, M., Macleod, D. M., MacMillan, I. A. O., Macquet, A., Hernandez, I. Magaña, Magazzù, C., Magee, R. M., Maggiore, R., Magnozzi, M., Mahesh, S., Majorana, E., Maksimovic, I., Maliakal, S., Malik, A., Man, N., Mandic, V., Mangano, V., Mansell, G. L., Manske, M., Mantovani, M., Mapelli, M., Marchesoni, F., Pina, D. Marín, Marion, F., Mark, Z., Márka, S., Márka, Z., Markakis, C., Markosyan, A. S., Markowitz, A., Maros, E., Marquina, A., Marsat, S., Martelli, F., Martin, I. W., Martin, R. M., Martinez, M., Martinez, V. A., Martinez, V., Martinovic, K., Martynov, D. V., Marx, E. J., Masalehdan, H., Mason, K., Massera, E., Masserot, A., Masso-Reid, M., Mastrogiovanni, S., Matas, A., Mateu-Lucena, M., Matichard, F., Matiushechkina, M., Mavalvala, N., McCann, J. J., McCarthy, R., McClelland, D. E., McClincy, P. K., McCormick, S., McCuller, L., McGhee, G. I., McGuire, S. C., McIsaac, C., McIver, J., McRae, T., McWilliams, S. T., Meacher, D., Mehmet, M., Mehta, A. K., Meijer, Q., Melatos, A., Melchor, D. A., Mendell, G., Menendez-Vazquez, A., Menoni, C. S., Mercer, R. A., Mereni, L., Merfeld, K., Merilh, E. L., Merritt, J. D., Merzougui, M., Meshkov, S., Messenger, C., Messick, C., Meyers, P. M., Meylahn, F., Mhaske, A., Miani, A., Miao, H., Michaloliakos, I., Michel, C., Michimura, Y., Middleton, H., Mihaylov, D. P., Milano, L., Miller, A. L., Miller, A., Miller, B., Millhouse, M., Mills, J. C., Milotti, E., Minenkov, Y., Mio, N., Mir, Ll. M., Miravet-Tenés, M., Mishkin, A., Mishra, C., Mishra, T., Mistry, T., Mitra, S., Mitrofanov, V. P., Mitselmakher, G., Mittleman, R., Miyakawa, O., Miyo, K., Miyoki, S., Mo, Geoffrey, Modafferi, L. M., Moguel, E., Mogushi, K., Mohapatra, S. R. P., Mohite, S. R., Molina, I., Molina-Ruiz, M., Mondin, M., Montani, M., Moore, C. J., Moragues, J., Moraru, D., Morawski, F., More, A., Moreno, C., Moreno, G., Mori, Y., Morisaki, S., Morisue, N., Moriwaki, Y., Mours, B., Mow-Lowry, C. M., Mozzon, S., Muciaccia, F., Mukherjee, Arunava, Mukherjee, D., Mukherjee, Soma, Mukherjee, Subroto, Mukherjee, Suvodip, Mukund, N., Mullavey, A., Munch, J., Muniz, E. A., Murray, P. G., Musenich, R., Muusse, S., Nadji, S. L., Nagano, K., Nagar, A., Nakamura, K., Nakano, H., Nakano, M., Nakayama, Y., Napolano, V., Nardecchia, I., Narola, H., Naticchioni, L., Nayak, B., Nayak, R. K., Neil, B. F., Neilson, J., Nelson, A., Nelson, T. J. N., Nery, M., Neubauer, P., Neunzert, A., Ng, K. Y., Ng, S. W. S., Nguyen, C., Nguyen, P., Nguyen, T., Quynh, L. Nguyen, Ni, J., Ni, W. T., Nichols, S. A., Nishimoto, T., Nishizawa, A., Nissanke, S., Nitoglia, E., Nocera, F., Norman, M., North, C., Nozaki, S., Nurbek, G., Nuttall, L. K., Obayashi, Y., Oberling, J., O'Brien, B. D., O'Dell, J., Oelker, E., Ogaki, W., Oganesyan, G., Oh, J. J., Oh, K., Oh, S. H., Ohashi, M., Ohashi, T., Ohkawa, M., Ohme, F., Ohta, H., Okada, M. A., Okutani, Y., Olivetto, C., Oohara, K., Oram, R., O'Reilly, B., Ormiston, R. G., Ormsby, N. D., O'Shaughnessy, R., O'Shea, E., Oshino, S., Ossokine, S., Osthelder, C., Otabe, S., Ottaway, D. J., Overmier, H., Pace, A. E., Pagano, G., Pagano, R., Page, M. A., Pagliaroli, G., Pai, A., Pai, S. A., Pal, S., Palamos, J. R., Palashov, O., Palomba, C., Pan, H., Pan, K. C., Panda, P. K., Pang, P. T. H., Pankow, C., Pannarale, F., Pant, B. C., Panther, F. H., Paoletti, F., Paoli, A., Paolone, A., Pappas, G., Parisi, A., Park, H., Park, J., Parker, W., Pascucci, D., Pasqualetti, A., Passaquieti, R., Passuello, D., Patel, M., Pathak, M., Patricelli, B., Patron, A. S., Paul, S., Payne, E., Pedraza, M., Pedurand, R., Pegoraro, M., Pele, A., Arellano, F. E. Pena, Penano, S., Penn, S., Perego, A., Pereira, A., Pereira, T., Perez, C. J., Pèrigois, C., Perkins, C. C., Perreca, A., Perriés, S., Pesios, D., Petermann, J., Petterson, D., Pfeiffer, H. P., Pham, H., Pham, K. A., Phukon, K. S., Phurailatpam, H., Piccinni, O. J., Pichot, M., Piendibene, M., Piergiovanni, F., Pierini, L., Pierro, V., Pillant, G., Pillas, M., Pilo, F., Pinard, L., Pineda-Bosque, C., Pinto, I. M., Pinto, M., Piotrzkowski, B. J., Piotrzkowski, K., Pirello, M., Pitkin, M. D., Placidi, A., Placidi, E., Planas, M. L., Plastino, W., Pluchar, C., Poggiani, R., Polini, E., Pong, D. Y. T., Ponrathnam, S., Porter, E. K., Poulton, R., Poverman, A., Powell, J., Pracchia, M., Pradier, T., Prajapati, A. K., Prasai, K., Prasanna, R., Pratten, G., Principe, M., Prodi, G. A., Prokhorov, L., Prosposito, P., Prudenzi, L., Puecher, A., Punturo, M., Puosi, F., Puppo, P., Purrer, M., Qi, H., Quartey, N., Quetschke, V., Quinonez, P. J., Quitzow-James, R., Raab, F. J., Raaijmakers, G., Radkins, H., Radulesco, N., Raffai, P., Rail, S. X., Raja, S., Rajan, C., Ramirez, K. E., Ramirez, T. D., Ramos-Buades, A., Rana, J., Rapagnani, P., Ray, A., Raymond, V., Raza, N., Razzano, M., Read, J., Rees, L. A., Regimbau, T., Rei, L., Reid, S., Reid, S. W., Reitze, D. H., Relton, P., Renzini, A., Rettegno, P., Revenu, B., Reza, A., Rezac, M., Ricci, F., Richards, D., Richardson, J. W., Richardson, L., Riemenschneider, G., Riles, K., Rinaldi, S., Rink, K., Robertson, N. A., Robie, R., Robinet, F., Rocchi, A., Rodriguez, S., Rolland, L., Rollins, J. G., Romanelli, M., Romano, R., Romel, C. L., Romero, A., Romero-Shaw, I. M., Romie, J. H., Ronchini, S., Rosa, L., Rose, C. A., Rosinska, D., Ross, M. P., Rowan, S., Rowlinson, S. J., Roy, S., Roy, Santosh, Roy, Soumen, Rozza, D., Ruggi, P., Ruiz-Rocha, K., Ryan, K., Sachdev, S., Sadecki, T., Sadiq, J., Saha, S., Saito, Y., Sakai, K., Sakellariadou, M., Sakon, S., Salafia, O. S., Salces-Carcoba, F., Salconi, L., Saleem, M., Salemi, F., Samajdar, A., Sanchez, E. J., Sanchez, J. H., Sanchez, L. E., Sanchis-Gual, N., Sanders, J. R., Sanuy, A., Saravanan, T. R., Sarin, N., Sassolas, B., Satari, H., Sauter, O., Savage, R. L., Savant, V., Sawada, T., Sawant, H. L., Sayah, S., Schaetzl, D., Scheel, M., Scheuer, J., Schiworski, M. G., Schmidt, P., Schmidt, S., Schnabel, R., Schneewind, M., Schofield, R. M. S., Schonbeck, A., Schulte, B. W., Schutz, B. F., Schwartz, E., Scott, J., Scott, S. M., Seglar-Arroyo, M., Sekiguchi, Y., Sellers, D., Sengupta, A. S., Sentenac, D., Seo, E. G., Sequino, V., Sergeev, A., Setyawati, Y., Shaffer, T., Shahriar, M. S., Shaikh, M. A., Shams, B., Shao, L., Sharma, A., Sharma, P., Shawhan, P., Shcheblanov, N. S., Sheela, A., Shikano, Y., Shikauchi, M., Shimizu, H., Shimode, K., Shinkai, H., Shishido, T., Shoda, A., Shoemaker, D. H., Shoemaker, D. M., ShyamSundar, S., Sieniawska, M., Sigg, D., Silenzi, L., Singer, L. P., Singh, D., Singh, M. K., Singh, N., Singha, A., Sintes, A. M., Sipala, V., Skliris, V., Slagmolen, B. J. J., Slaven-Blair, T. J., Smetana, J., Smith, J. R., Smith, L., Smith, R. J. E., Soldateschi, J., Somala, S. N., Somiya, K., Song, I., Soni, K., Soni, S., Sordini, V., Sorrentino, F., Sorrentino, N., Soulard, R., Souradeep, T., Sowell, E., Spagnuolo, V., Spencer, A. P., Spera, M., Spinicelli, P., Srivastava, A. K., Srivastava, V., Staats, K., Stachie, C., Stachurski, F., Steer, D. A., Steinlechner, J., Steinlechner, S., Stergioulas, N., Stops, D. J., Stover, M., Strain, K. A., Strang, L. C., Stratta, G., Strong, M. D., Strunk, A., Sturani, R., Stuver, A. L., Suchenek, M., Sudhagar, S., Sudhir, V., Sugimoto, R., Suh, H. G., Sullivan, A. G., Summerscales, T. Z., Sun, L., Sunil, S., Sur, A., Suresh, J., Sutton, P. J., Suzuki, Takamasa, Suzuki, Takanori, Suzuki, Toshikazu, Swinkels, B. L., Szczepańczyk, M. J., Szewczyk, P., Tacca, M., Tagoshi, H., Tait, S. C., Takahashi, H., Takahashi, R., Takano, S., Takeda, H., Takeda, M., Talbot, C. J., Talbot, C., Tanaka, K., Tanaka, Taiki, Tanaka, Takahiro, Tanasijczuk, A. J., Tanioka, S., Tanner, D. B., Tao, D., Tao, L., Tapia, R. D., Martin, E. N. Tapia San, Taranto, C., Taruya, A., Tasson, J. D., Tenorio, R., Terhune, J. E. S., Terkowski, L., Thirugnanasambandam, M. P., Thomas, M., Thomas, P., Thompson, E. E., Thompson, J. E., Thondapu, S. R., Thorne, K. A., Thrane, E., Tiwari, Shubhanshu, Tiwari, Srishti, Tiwari, V., Toivonen, A. M., Tolley, A. E., Tomaru, T., Tomura, T., Tonelli, M., Tornasi, Z., Torres-Forne, A., Torrie, C. I., Melo, I. Tosta e, Toyra, D., Trapananti, A., Travasso, F., Traylor, G., Trevor, M., Tringali, M. C., Tripathee, A., Troiano, L., Trovato, A., Trozzo, L., Trudeau, R. J., Tsai, D., Tsang, K. W., Tsang, T., Tsao, J. S., Tse, M., Tso, R., Tsuchida, S., Tsukada, L., Tsuna, D., Tsutsui, T., Turbang, K., Turconi, M., Tuyenbayev, D., Ubhi, A. S., Uchiyama, T., Udall, R. P., Ueda, A., Uehara, T., Ueno, K., Ueshima, G., Unnikrishnan, C. S., Urban, A. L., Ushiba, T., Utina, A., Vajente, G., Vajpeyi, A., Valdes, G., Valentini, M., Valsan, V., van Bakel, N., van Beuzekom, M., van Dael, M., Brand, J. F. J. van den, Broeck, C. Van Den, Vander-Hyde, D. C., van Haevermaet, H., van Heijningen, J. V., van Putten, M. H. P. M., van Remortel, N., Vardaro, M., Vargas, A. F., Varma, V., Vasuth, M., Vecchio, A., Vedovato, G., Veitch, J., Veitch, P. J., Venneberg, J., Venugopalan, G., Verkindt, D., Verma, P., Verma, Y., Vermeulen, S. M., Veske, D., Vetrano, F., Vicere, A., Vidyant, S., Viets, A. D., Vijaykumar, A., Villa-Ortega, V., Vinet, J. Y., Virtuoso, A., Vitale, S., Vocca, H., von Reis, E. R. G., von Wrangel, J. S. A., Vorvick, C., Vyatchanin, S. P., Wade, L. E., Wade, M., Wagner, K. J., Walet, R. C., Walker, M., Wallace, G. S., Wallace, L., Wang, J., Wang, J. Z., Wang, W. H., Ward, R. L., Warner, J., Was, M., Washimi, T., Washington, N. Y., Watchi, J., Weaver, B., Weaving, C. R., Webster, S. A., Weinert, M., Weinstein, A. J., Weiss, R., Weller, C. M., Weller, R. A., Wellmann, F., Wen, L., Wessels, P., Wette, K., Whelan, J. T., White, D. D., Whiting, B. F., Whittle, C., Wilken, D., Williams, D., Williams, M. J., Williamson, A. R., Willis, J. L., Willke, B., Wilson, D. J., Wipf, C. C., Wlodarczyk, T., Woan, G., Woehler, J., Wofford, J. K., Wong, D., Wong, I. C. F., Wright, M., Wu, C., Wu, D. S., Wu, H., Xiao, D. M. Wysocki L., Yamada, T., Yamamoto, 288 H., Yamamoto, K., Yamamoto, T., Yamashita, K., Yamazaki, R., Yang, F. W., Yang, K. Z., Yang, L., Yang, Y. C., Yang, Y., Yang, Yang, Yap, M. J., Yeeles, D. W., Yeh, S. W., Yelikar, A. B., Ying, M., Yokoyama, J., Yokozawa, T., Yoo, J., Yoshioka, T., Yu, Hang, Yu, Haocun, Yuzurihara, H., Zadrozny, A., Zanolin, M., Zeidler, S., Zelenova, T., Zendri, J. P., Zevin, M., Zhan, M., Zhang, H., Zhang, J., Zhang, L., Zhang, R., Zhang, T., Zhang, Y., Zhao, C., Zhao, G., Zhao, Y., Zhao, Yue, Zhou, R., Zhou, Z., Zhu, X. J., Zhu, Z. H., Zimmerman, A. B., Zucker, M. E., Zweizig, J., Collaboration, The LIGO Scientific, Collaboration, the Virgo, and Collaboration, the KAGRA
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present Fermi Gamma-ray Burst Monitor (Fermi-GBM) and Swift Burst Alert Telescope (Swift-BAT) searches for gamma-ray/X-ray counterparts to gravitational wave (GW) candidate events identified during the third observing run of the Advanced LIGO and Advanced Virgo detectors. Using Fermi-GBM on-board triggers and sub-threshold gamma-ray burst (GRB) candidates found in the Fermi-GBM ground analyses, the Targeted Search and the Untargeted Search, we investigate whether there are any coincident GRBs associated with the GWs. We also search the Swift-BAT rate data around the GW times to determine whether a GRB counterpart is present. No counterparts are found. Using both the Fermi-GBM Targeted Search and the Swift-BAT search, we calculate flux upper limits and present joint upper limits on the gamma-ray luminosity of each GW. Given these limits, we constrain theoretical models for the emission of gamma-rays from binary black hole mergers.
Published: 2023

12. Gamma-ray Transient Network Science Analysis Group Report

Author: Burns, Eric, Coughlin, Michael, Ackley, Kendall, Andreoni, Igor, Bizouard, Marie-Anne, Broekgaarden, Floor, Christensen, Nelson L., D'Ammando, Filippo, DeLaunay, James, Fleischhack, Henrike, Frey, Raymond, Fryer, Chris L., Goldstein, Adam, Grossan, Bruce, Hamburg, Rachel, Hartmann, Dieter H., Ho, Anna Y. Q., Howell, Eric J., Hui, C. Michelle, Jenks, Leah, Joens, Alyson, Lesage, Stephen, Levan, Andrew J., Lien, Amy, Meli, Athina, Negro, Michela, Parsotan, Tyler, Roberts, Oliver J., Santander, Marcos, Smith, Jacob R., Tohuvavohu, Aaron, Tomsick, John A., Wadiasingh, Zorawar, Veres, Peter, Villar, Ashley V., Zhang, Haocheng, and Zhu, Sylvia J.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The Interplanetary Network (IPN) is a detection, localization and alert system that utilizes the arrival time of transient signals in gamma-ray detectors on spacecraft separated by planetary baselines to geometrically locate the origin of these transients. Due to the changing astrophysical landscape and the new emphasis on time domain and multi-messenger astrophysics (TDAMM) from the Pathways to Discovery in Astronomy and Astrophysics for the 2020s, this Gamma-ray Transient Network Science Analysis Group was tasked to understand the role of the IPN and high-energy monitors in this new era. The charge includes describing the science made possible with these facilities, tracing the corresponding requirements and capabilities, and highlighting where improved operations of existing instruments and the IPN would enhance TDAMM science. While this study considers the full multiwavelength and multimessenger context, the findings are specific to space-based high-energy monitors. These facilities are important both for full characterization of these transients as well as facilitating follow-up observations through discovery and localization. The full document reports a brief history of this field, followed by our detailed analyses and findings in some 68 pages, providing a holistic overview of the role of the IPN and high-energy monitors in the coming decades., Comment: Terms of Reference and additional information on the Science Analysis Group are available at https://pcos.gsfc.nasa.gov/sags/gtn-sag.php
Published: 2023

13. JWST detection of heavy neutron capture elements in a compact object merger

Author: Levan, A., Gompertz, B. P., Salafia, O. S., Bulla, M., Burns, E., Hotokezaka, K., Izzo, L., Lamb, G. P., Malesani, D. B., Oates, S. R., Ravasio, M. E., Escorial, A. Rouco, Schneider, B., Sarin, N., Schulze, S., Tanvir, N. R., Ackley, K., Anderson, G., Brammer, G. B., Christensen, L., Dhillon, V. S., Evans, P. A., Fausnaugh, M., Fong, W. -F., Fruchter, A. S., Fryer, C., Fynbo, J. P. U., Gaspari, N., Heintz, K. E., Hjorth, J., Kennea, J. A., Kennedy, M. R., Laskar, T., Leloudas, G., Mandel, I., Martin-Carrillo, A., Metzger, B. D., Nicholl, M., Nugent, A., Palmerio, J. T., Pugliese, G., Rastinejad, J., Rhodes, L., Rossi, A., Smartt, S. J., Stevance, H. F., Tohuvavohu, A., van der Horst, A., Vergani, S. D., Watson, D., Barclay, T., Bhirombhakdi, K., Breedt, E., Breeveld, A. A., Brown, A. J., Campana, S., Chrimes, A. A., D'Avanzo, P., D'Elia, V., De Pasquale, M., Dyer, M. J., Galloway, D. K., Garbutt, J. A., Green, M. J., Hartmann, D. H., Jakobsson, P., Kerry, P., Langeroodi, D., Leung, J. K., Littlefair, S. P., Munday, J., O'Brien, P., Parsons, S. G., Pelisoli, I., Saccardi, A., Sahman, D. I., Salvaterra, R., Sbarufatti, B., Steeghs, D., Tagliaferri, G., Thöne, C. C., Postigo, A. de Ugarte, and Kann, D. A.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Nongalactic Astrophysics
Abstract: The mergers of binary compact objects such as neutron stars and black holes are of central interest to several areas of astrophysics, including as the progenitors of gamma-ray bursts (GRBs), sources of high-frequency gravitational waves and likely production sites for heavy element nucleosynthesis via rapid neutron capture (the r-process). These heavy elements include some of great geophysical, biological and cultural importance, such as thorium, iodine and gold. Here we present observations of the exceptionally bright gamma-ray burst GRB 230307A. We show that GRB 230307A belongs to the class of long-duration gamma-ray bursts associated with compact object mergers, and contains a kilonova similar to AT2017gfo, associated with the gravitational-wave merger GW170817. We obtained James Webb Space Telescope mid-infrared (mid-IR) imaging and spectroscopy 29 and 61 days after the burst. The spectroscopy shows an emission line at 2.15 microns which we interpret as tellurium (atomic mass A=130), and a very red source, emitting most of its light in the mid-IR due to the production of lanthanides. These observations demonstrate that nucleosynthesis in GRBs can create r-process elements across a broad atomic mass range and play a central role in heavy element nucleosynthesis across the Universe., Comment: Submitted. Comments welcome! Nature (2023)
Published: 2023
Full Text: View/download PDF

14. Swift/UVOT discovery of Swift J221951-484240: a UV luminous ambiguous nuclear transient

Author: Oates, S. R., Kuin, N. P. M., Nicholl, M., Marshall, F., Ridley, E., Boutsia, K., Breeveld, A. A., Buckley, D. A. H., Cenko, S. B., De Pasquale, M., Edwards, P. G., Gromadzki, M., Gupta, R., Laha, S., Morrell, N., Orio, M., Pandey, S. B., Page, M. J., Page, K. L., Parsotan, T., Rau, A., Schady, P., Stevens, J., Brown, P. J., Evans, P. A., Gronwall, C., Kennea, J. A., Klingler, N. J., Siegel, M. H., Tohuvavohu, A., Ambrosi, E., Barthelmy, S. D., Beardmore, A. P., Bernardini, M. G., Bonnerot, C., Campana, S., Caputo, R., Ciroi, S., Cusumano, G., D'Ai, A., D'Avanzo, P., D'Elia, V., Giommi, P., Hartmann, D. H., Krimm, H. A., Malesani, D. B., Melandri, A., Nousek, J. A., O'Brien, P. T., Osborne, J. P., Pagani, C., Palmer, D. M., Perri, M., Racusin, J. L., Sakamoto, T., Sbarufatti, B., Schlieder, J. E., Tagliaferri, G., Troja, E., and Xu, D.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report the discovery of Swift J221951-484240 (hereafter: J221951), a luminous slow-evolving blue transient that was detected by the Neil Gehrels Swift Observatory Ultra-violet/Optical Telescope (Swift/UVOT) during the follow-up of Gravitational Wave alert S190930t, to which it is unrelated. Swift/UVOT photometry shows the UV spectral energy distribution of the transient to be well modelled by a slowly shrinking black body with an approximately constant temperature of T~2.5x10^4 K. At a redshift z=0.5205, J221951 had a peak absolute magnitude of M_u,AB = -23 mag, peak bolometric luminosity L_max=1.1x10^45 erg s^-1 and a total radiated energy of E>2.6x10^52 erg. The archival WISE IR photometry shows a slow rise prior to a peak near the discovery date. Spectroscopic UV observations display broad absorption lines in N V and O VI, pointing toward an outflow at coronal temperatures. The lack of emission in the higher H~Lyman lines, N I and other neutral lines is consistent with a viewing angle close to the plane of the accretion or debris disc. The origin of J221951 can not be determined with certainty but has properties consistent with a tidal disruption event and the turn-on of an active galactic nucleus., Comment: 37 pages (25 main + 12 supplementary), submitted to MNRAS
Published: 2023

15. Science with a small two-band UV-photometry mission I: Mission description and follow-up observations of stellar transients

Author: Werner, N., Řípa, J., Thöne, C., Münz, F., Kurfürst, P., Jelínek, M., Hroch, F., Benáček, J., Topinka, M., Lukes-Gerakopoulos, G., Zajaček, M., Labaj, M., Prišegen, M., Krtička, J., Merc, J., Pál, A., Pejcha, O., Dániel, V., Jon, J., Šošovička, R., Gromeš, J., Václavík, J., Steiger, L., Segiňák, J., Behar, E., Tarem, S., Salh, J., Reich, O., Ben-Ami, S., Barschke, M. F., Berge, D., Tohuvavohu, A., Sivanandam, S., Bulla, M., Popov, S., and Chang, Hsiang-Kuang
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - Solar and Stellar Astrophysics
Abstract: This is the first in a collection of three papers introducing the science with an ultra-violet (UV) space telescope on an approximately 130~kg small satellite with a moderately fast re-pointing capability and a real-time alert communication system approved for a Czech national space mission. The mission, called Quick Ultra-Violet Kilonova surveyor - QUVIK, will provide key follow-up capabilities to increase the discovery potential of gravitational wave observatories and future wide-field multi-wavelength surveys. The primary objective of the mission is the measurement of the UV brightness evolution of kilonovae, resulting from mergers of neutron stars, to distinguish between different explosion scenarios. The mission, which is designed to be complementary to the Ultraviolet Transient Astronomy Satellite - ULTRASAT, will also provide unique follow-up capabilities for other transients both in the near- and far-UV bands. Between the observations of transients, the satellite will target other objects described in this collection of papers, which demonstrates that a small and relatively affordable dedicated UV-space telescope can be transformative for many fields of astrophysics., Comment: Accepted for publication in Space Science Reviews
Published: 2023

16. GRB 221009A: Discovery of an Exceptionally Rare Nearby and Energetic Gamma-Ray Burst

Author: Williams, Maia A., Kennea, Jamie A., Dichiara, S., Kobayashi, Kohei, Iwakiri, Wataru B., Beardmore, Andrew P., Evans, P. A., Heinz, Sebastian, Lien, Amy, Oates, S. R., Negoro, Hitoshi, Cenko, S. Bradley, Buisson, Douglas J. K., Hartmann, Dieter H., Jaisawal, Gaurava K., Kuin, N. P. M., Lesage, Stephen, Page, Kim L., Parsotan, Tyler, Pasham, Dheeraj R., Sbarufatti, B., Siegel, Michael H., Sugita, Satoshi, Younes, George, Ambrosi, Elena, Arzoumanian, Zaven, Bernardini, M. G., Campana, S., Capalbi, Milvia, Caputo, Regina, D'Ai, Antonino, D'Avanzo, P., D'Elia, V., De Pasquale, Massimiliano, Eyles-Ferris, R. A. J., Ferrara, Elizabeth, Gendreau, Keith C., Gropp, Jeffrey D., Kawai, Nobuyuki, Klingler, Noel, Laha, Sibasish, Melandri, A., Mihara, Tatehiro, Moss, Michael, O'Brien, Paul, Osborne, Julian P., Palmer, David M., Perri, Matteo, Serino, Motoko, Sonbas, E., Stamatikos, Michael, Starling, Rhaana, Tagliaferri, G., Tohuvavohu, Aaron, Zane, Silvia, and Ziaeepour, Houri
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report the discovery of the unusually bright long-duration gamma-ray burst (GRB), GRB 221009A, as observed by the Neil Gehrels Swift Observatory (Swift), Monitor of All-sky X-ray Image (MAXI), and Neutron Star Interior Composition Explorer Mission (NICER). This energetic GRB was located relatively nearby (z = 0.151), allowing for sustained observations of the afterglow. The large X-ray luminosity and low Galactic latitude (b = 4.3 degrees) make GRB 221009A a powerful probe of dust in the Milky Way. Using echo tomography we map the line-of-sight dust distribution and find evidence for significant column densities at large distances (~> 10kpc). We present analysis of the light curves and spectra at X-ray and UV/optical wavelengths, and find that the X-ray afterglow of GRB 221009A is more than an order of magnitude brighter at T0 + 4.5 ks than any previous GRB observed by Swift. In its rest frame GRB 221009A is at the high end of the afterglow luminosity distribution, but not uniquely so. In a simulation of randomly generated bursts, only 1 in 10^4 long GRBs were as energetic as GRB 221009A; such a large E_gamma,iso implies a narrow jet structure, but the afterglow light curve is inconsistent with simple top-hat jet models. Using the sample of Swift GRBs with redshifts, we estimate that GRBs as energetic and nearby as GRB 221009A occur at a rate of ~<1 per 1000 yr - making this a truly remarkable opportunity unlikely to be repeated in our lifetime., Comment: 30 pages, 13 figures, submitted to ApJL
Published: 2023
Full Text: View/download PDF

17. A very luminous jet from the disruption of a star by a massive black hole

Author: Andreoni, Igor, Coughlin, Michael W., Perley, Daniel A., Yao, Yuhan, Lu, Wenbin, Cenko, S. Bradley, Kumar, Harsh, Anand, Shreya, Ho, Anna Y. Q., Kasliwal, Mansi M., Postigo, Antonio de Ugarte, Sagues-Carracedo, Ana, Schulze, Steve, Kann, D. Alexander, Kulkarni, S. R., Sollerman, Jesper, Tanvir, Nial, Rest, Armin, Izzo, Luca, Somalwar, Jean J., Kaplan, David L., Ahumada, Tomas, Anupama, G. C., Auchettl, Katie, Barway, Sudhanshu, Bellm, Eric C., Bhalerao, Varun, Bloom, Joshua S., Bremer, Michael, Bulla, Mattia, Burns, Eric, Campana, Sergio, Chandra, Poonam, Charalampopoulos, Panos, Cooke, Jeff, D'Elia, Valerio, Das, Kaustav Kashyap, Dobie, Dougal, Fernández, José Feliciano Agüí, Freeburn, James, Fremling, Cristoffer, Gezari, Suvi, Goode, Simon, Graham, Matthew, Hammerstein, Erica, Karambelkar, Viraj R., Kilpatrick, Charles D., Kool, Erik C., Krips, Melanie, Laher, Russ R., Leloudas, Giorgos, Levan, Andrew, Lundquist, Michael J., Mahabal, Ashish A., Medford, Michael S., Miller, M. Coleman, Möller, Anais, Mooley, Kunal, Nayana, A. J., Nir, Guy, Pang, Peter T. H., Paraskeva, Emmy, Perley, Richard A., Petitpas, Glen, Pursiainen, Miika, Ravi, Vikram, Ridden-Harper, Ryan, Riddle, Reed, Rigault, Mickael, Rodriguez, Antonio C., Rusholme, Ben, Sharma, Yashvi, Smith, I. A., Stein, Robert D., Thöne, Christina, Tohuvavohu, Aaron, Valdes, Frank, van Roestel, Jan, Vergani, Susanna D., Wang, Qinan, and Zhang, Jielai
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Tidal disruption events (TDEs) are bursts of electromagnetic energy released when supermassive black holes (SMBHs) at the centers of galaxies violently disrupt a star that passes too close. TDEs provide a new window to study accretion onto SMBHs; in some rare cases, this accretion leads to launching of a relativistic jet, but the necessary conditions are not fully understood. The best studied jetted TDE to date is Swift J1644+57, which was discovered in gamma-rays, but was too obscured by dust to be seen at optical wavelengths. Here we report the optical discovery of AT2022cmc, a rapidly fading source at cosmological distance (redshift z=1.19325) whose unique lightcurve transitioned into a luminous plateau within days. Observations of a bright counterpart at other wavelengths, including X-rays, sub-millimeter, and radio, supports the interpretation of AT2022cmc as a jetted TDE containing a synchrotron "afterglow", likely launched by a SMBH with spin $a \gtrsim 0.3$. Using 4 years of Zwicky Transient Facility (ZTF) survey data, we calculate a rate of $0.02 ^{+ 0.04 }_{- 0.01 }$ Gpc$^{-3}$ yr$^{-1}$ for on-axis jetted TDEs based on the luminous, fast-fading red component, thus providing a measurement complementary to the rates derived from X-ray and radio observations. Correcting for the beaming angle effects, this rate confirms that about 1% of TDEs have relativistic jets. Optical surveys can use AT2022cmc as a prototype to unveil a population of jetted TDEs., Comment: Accepted for publication in Nature
Published: 2022
Full Text: View/download PDF

18. SN 2022oqm -- a Ca-rich explosion of a compact progenitor embedded in C/O circumstellar material

Author: Irani, I., Chen, Ping, Morag, Jonathan, Schulze, S., Gal-Yam, A., Strotjohann, Nora L., Yaron, Ofer, Zimmerman, E. A., Sharon, Amir, Perley, Daniel A., Sollerman, J., Tohuvavohu, Aaron, Das, Kaustav K., Kasliwal, Mansi M., Bruch, Rachel, Brink, Thomas G., Zheng, WeiKang, Patra, Kishore C., Vasylyev, Sergiy S., Filippenko, Alexei V., Yang, Yi, Graham, Matthew J., Bloom, Joshua S., Mazzali, Paolo, Purdum, Josiah, Laher, Russ R., Wold, Avery, Sharma, Yashvi, Lacroix, Leander, and Medford, Michael S.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics
Abstract: We present the discovery and analysis of SN\,2022oqm, a Type Ic supernova (SN) detected $<1$\,day after explosion. The SN rises to a blue and short-lived (2\,days) initial peak. Early-time spectral observations of SN\,2022oqm show a hot (40,000\,K) continuum with high-ionization C and O absorption features at velocities of 4000\,km\,s$^{-1}$, while its photospheric radius expands at 20,000\,\kms, indicating a pre-existing distribution of expanding C/O material. After $\sim2.5$\,days, both the spectrum and light curves evolve into those of a typical SN Ic, with line velocities of $\sim10,000$\,km\,s$^{-1}$, in agreement with the photospheric radius evolution. The optical light curves reach a second peak at $t\approx15$\,days. By $t=60$\,days, the spectrum of \oqm\ becomes nearly nebular, displaying strong \ion{Ca}{2} and [\ion{Ca}{2}] emission with no detectable [\ion{O}{1}], marking this event as Ca-rich. The early behavior can be explained by $10^{-3}$\,\msun\ of optically thin circumstellar material (CSM) surrounding either (1) a massive compact progenitor such as a Wolf-Rayet star, (2) a massive stripped progenitor with an extended envelope, or (3) a binary system with a white dwarf. We propose that the early-time light curve is powered by both interaction of the ejecta with the optically thin CSM and shock cooling (in the massive-star scenario). The observations can be explained by CSM that is optically thick to X-ray photons, is optically thick in the lines as seen in the spectra, and is optically thin to visible-light continuum photons that come either from downscattered X-rays or from the shock-heated ejecta. Calculations show that this scenario is self-consistent., Comment: 36 pages, 23 figures. Comments are welcome ido.irani@weizmann.ac.il or idoirani@gmail.com. Accepted to ApJ
Published: 2022

19. A low-cost ultraviolet-to-infrared absolute quantum efficiency characterization system of detectors

Author: Gill, Ajay S., Shaaban, Mohamed M., Tohuvavohu, Aaron, Sivanandam, Suresh, Abraham, Roberto G., Chen, Seery, Drout, Maria R., Lokhorst, Deborah, Matzner, Christopher D., Mochnacki, Stefan W., and Netterfield, Calvin B.
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Physics - Instrumentation and Detectors
Abstract: We present a low-cost ultraviolet to infrared absolute quantum efficiency detector characterization system developed using commercial off-the-shelf components. The key components of the experiment include a light source,a regulated power supply, a monochromator, an integrating sphere, and a calibrated photodiode. We provide a step-by-step procedure to construct the photon and quantum efficiency transfer curves of imaging sensors. We present results for the GSENSE 2020 BSI CMOS sensor and the Sony IMX 455 BSI CMOS sensor. As a reference for similar characterizations, we provide a list of parts and associated costs along with images of our setup., Comment: 15 pages, 14 figures, SPIE Astronomical Telescopes and Instrumentation, Conference 12191: X-ray, Optical, and Infrared Detectors for Astronomy X, Paper Number: 12191-39 (Montreal, July 2022)
Published: 2022

20. The First Short GRB Millimeter Afterglow: The Wide-Angled Jet of the Extremely Energetic SGRB 211106A

Author: Laskar, Tanmoy, Escorial, Alicia Rouco, Schroeder, Genevieve, Fong, Wen-fai, Berger, Edo, Veres, Péter, Bhandari, Shivani, Rastinejad, Jillian, Kilpatrick, Charles D., Tohuvavohu, Aaron, Margutti, Raffaella, Alexander, Kate D., DeLaunay, James, Kennea, Jamie A., Nugent, Anya, Paterson, K., and Williams, Peter K. G.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the discovery of the first millimeter afterglow of a short-duration $\gamma$-ray burst (SGRB) and the first confirmed afterglow of an SGRB localized by the GUANO system on Swift. Our Atacama Large Millimeter/Sub-millimeter Array (ALMA) detection of SGRB 211106A establishes an origin in a faint host galaxy detected in Hubble Space Telescope (HST) imaging at $0.7\lesssim z\lesssim1.4$. From the lack of a detectable optical afterglow, coupled with the bright millimeter counterpart, we infer a high extinction, $A_{\rm V}\gtrsim2.6$ mag along the line of sight, making this the one of the most highly dust-extincted SGRBs known to date. The millimeter-band light curve captures the passage of the synchrotron peak from the afterglow forward shock and reveals a jet break at $t_{\rm jet}=29.2^{+4.5}_{-4.0}$~days. For a presumed redshift of $z=1$, we infer an opening angle, $\theta_{\rm jet}=(15.5\pm1.4)$~degrees, and beaming-corrected kinetic energy of $\log(E_{\rm K}/{\rm erg})=51.8\pm0.3$, making this one of the widest and most energetic SGRB jets known to date. Combining all published millimeter-band upper limits in conjunction with the energetics for a large sample of SGRBs, we find that energetic outflows in high density environments are more likely to have detectable millimeter counterparts. Concerted afterglow searches with ALMA should yield detection fractions of 24-40% on timescales of $\gtrsim2$~days at rates $\approx0.8$-1.6 per year, outpacing the historical discovery rate of SGRB centimeter-band afterglows., Comment: 20 pages, 9 figures, 4 tables. Version accepted for publication in ApJ Letters
Published: 2022
Full Text: View/download PDF

21. The Second Catalog of Interplanetary Network Localizations of Konus Short Duration Gamma-Ray Bursts

Author: Svinkin, D., Hurley, K., Ridnaia, A., Lysenko, A., Frederiks, D., Golenetskii, S., Tsvetkova, A., Ulanov, M., Kokomov, A., Cline, T. L., Mitrofanov, I., Golovin, D., Kozyrev, A., Litvak, M., Sanin, A., Goldstein, A., Briggs, M. S., Wilson-Hodge, C., Burns, E., von Kienlin, A., Zhang, X. -L., Rau, A., Savchenko, V., Bozzo, E., Ferrigno, C., Barthelmy, S., Cummings, J., Krimm, H., Palmer, D. M., Tohuvavohu, A., Yamaoka, K., Ohno, M., Fukazawa, Y., Hanabata, Y., Takahashi, T., Tashiro, M., Terada, Y., Murakami, T., Makishima, K., Boynton, W., Fellows, C. W., Harshman, K. P., Enos, H., Starr, R., Goldsten, J., Gold, R., Ursi, A., Tavani, M., Bulgarelli, A., Casentini, C., Del Monte, E., Evangelista, Y., Galli, M., Longo, F., Marisaldi, M., Parmiggiani, N., Pittori, C., Romani, M., Verrecchia, F., Smith, D. M., Hajdas, W., Xiao, S., Cai, C., Yi, Q. B., Zhang, Y. Q., Xiong, S. L., Li, X. B., Huang, Y., Li, C. K., Zhang, S. N., Song, L. M., Liu, C. Z., Li, X. Q., Peng, W. X., and Martinez-Castellanos, I.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the catalog of Interplanetary Network (IPN) localizations for 199 short-duration gamma-ray bursts (sGRBs) detected by the Konus-Wind (KW) experiment between 2011 January 1 and 2021 August 31, which extends the initial sample of IPN localized KW sGRBs (arXiv:1301.3740) to 495 events. We present the most comprehensive IPN localization data on these events, including probability sky maps in HEALPix format., Comment: Published in ApJS
Published: 2022
Full Text: View/download PDF

22. Harvesting BAT-GUANO with NITRATES (Non-Imaging Transient Reconstruction And TEmporal Search): Detecting and localizing the faintest GRBs with a likelihood framework

Author: DeLaunay, James and Tohuvavohu, Aaron
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The detection of the gravitational wave counterpart GRB 170817A, underluminous compared to the cosmological GRB population by a factor of 10,000, motivates significant effort in detecting and localizing a dim, nearby, and slightly off-axis population of short GRBs. Swift/BAT is the most sensitive GRB detector in operation, and the only one that regularly localizes GRBs to arcminute precision, critical to rapid followup studies. However, the utility of BAT in targeted sub-threshold searches had been historically curtailed by the unavailability of the necessary raw data for analysis. The new availability of time-tagged event (TTE) data from the GUANO system (arXiv:2005.01751), motivates renewed focus on developing sensitive targeted search analysis techniques to maximally exploit these data. While computationally cheap, we show that the typical coded-mask deconvolution imaging is limited in its sensitivity due to several factors. We formalize a maximum likelihood framework for the analysis of BAT data wherein signals are forward modelled through the full instrument response, and -- coupled with the development of new response models -- demonstrate its superior sensitivity to typical imaging via archival comparisons, injection campaigns, and, after implementing as a targeted search, a large number of low-latency GRB discoveries and confirmed arcminute localizations to date. We also demonstrate independent localization of some out-of-FOV GRBs for the first time. NITRATES's increased sensitivity boosts the discovery rate of GRB 170817A-like events in BAT by a factor of at least $3-4$x, along with enabling joint analyses and searches with other GRB, GW, neutrino, and FRB instruments. We provide public access to the response functions and search pipeline code., Comment: Accepted for publication in ApJ. v2 as updated after useful referee feedback. Clarified notation, definition of the test statistic, new figures, better readability. The codebase and instrument responses can be found at https://github.com/Swift-BAT/NITRATES
Published: 2021
Full Text: View/download PDF

23. Science with a Small Two-Band UV-Photometry Mission I: Mission Description and Follow-up Observations of Stellar Transients

Author: Werner, N., Řípa, J., Thöne, C., Münz, F., Kurfürst, P., Jelínek, M., Hroch, F., Benáček, J., Topinka, M., Lukes-Gerakopoulos, G., Zajaček, M., Labaj, M., Prišegen, M., Krtička, J., Merc, J., Pál, A., Pejcha, O., Dániel, V., Jon, J., Šošovička, R., Gromeš, J., Václavík, J., Steiger, L., Segiňák, J., Behar, E., Tarem, S., Salh, J., Reich, O., Ben-Ami, S., Barschke, M. F., Berge, D., Tohuvavohu, A., Sivanandam, S., Bulla, M., Popov, S., and Chang, Hsiang-Kuang
Published: 2024
Full Text: View/download PDF

24. Swift/UVOT follow-up of Gravitational Wave Alerts in the O3 era

Author: Oates, S. R., Marshall, F. E., Breeveld, A. A., Kuin, N. P. M., Brown, P. J., De Pasquale, M., Evans, P. A., Fenney, A. J., Gronwall, C., Kennea, J. A., Klingler, N. J., Page, M. J., Siegel, M. H., Tohuvavohu, A., Ambrosi, E., Barthelmy, S. D., Beardmore, A. P., Bernardini, M. G., Campana, S., Caputo, R., Cenko, S. B., Cusumano, G., D'Aì, A., D'Avanzo, P., D'Elia, V., Giommi, P., Hartmann, D. H., Krimm, H. A., Laha, S., Malesani, D. B., Melandri, A., Nousek, J. A., O'Brien, P. T., Osborne, J. P., Pagani, C., Page, K. L., Palmer, D. M., Perri, M., Racusin, J. L., Sakamoto, T., Sbarufatti, B., Schlieder, J. E., Tagliaferri, G., and Troja, E.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: In this paper, we report on the observational performance of the Swift Ultra-violet/Optical Telescope (UVOT) in response to the Gravitational Wave alerts announced by the Advanced Laser Interferometer Gravitational Wave Observatory and the Advanced Virgo detector during the O3 period. We provide the observational strategy for follow-up of GW alerts and provide an overview of the processing and analysis of candidate optical/UV sources. For the O3 period, we also provide a statistical overview and report on serendipitous sources discovered by Swift/UVOT. Swift followed 18 gravitational-wave candidate alerts, with UVOT observing a total of 424 deg^2. We found 27 sources that changed in magnitude at the 3 sigma level compared with archival u or g-band catalogued values. Swift/UVOT also followed up a further 13 sources reported by other facilities during the O3 period. Using catalogue information, we divided these 40 sources into five initial classifications: 11 candidate active galactic nuclei (AGN)/quasars, 3 Cataclysmic Variables (CVs), 9 supernovae, 11 unidentified sources that had archival photometry and 6 uncatalogued sources for which no archival photometry was available. We have no strong evidence to identify any of these transients as counterparts to the GW events. The 17 unclassified sources are likely a mix of AGN and a class of fast-evolving transient, and one source may be a CV., Comment: 25 pages, 6 figures and 5 tables. Submitted to MNRAS. Supplementary contains 23 pages with 8 figures and 1 table
Published: 2021
Full Text: View/download PDF

25. Multi-messenger emission from the parsec-scale jet of the flat-spectrum radio quasar PKS 1502+106 coincident with high-energy neutrino IceCube-190730A

Author: Oikonomou, Foteini, Petropoulou, Maria, Murase, Kohta, Tohuvavohu, Aaron, Vasilopoulos, Georgios, Buson, Sara, and Santander, Marcos
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: On July 30th, 2019 IceCube detected a high-energy astrophysical muon neutrino candidate, IC-190730A, with a $67\%$ probability of astrophysical origin. The flat spectrum radio quasar (FSRQ) PKS 1502+106 is in the error circle of the neutrino. Motivated by this observation, we study PKS 1502+106 as a possible source of IC-190730A. PKS 1502+106 was in a quiet state in terms of UV/optical/X-ray/gamma-ray flux at the time of the neutrino alert, we therefore model the expected neutrino emission from the source during its average long-term state, and investigate whether the emission of IC-190730A as a result of the quiet long-term emission of PKS 1502+106 is plausible. We analyse UV/optical and X-ray data and collect additional observations from the literature to construct the multi-wavelength spectral energy distribution of PKS 1502+106. We perform leptohadronic modelling of the multi-wavelength emission of the source and determine the most plausible emission scenarios and the maximum expected accompanying neutrino flux. A model in which the multi-wavelength emission of PKS 1502+106 originates beyond the broad-line region and inside the dust torus is most consistent with the observations. In this scenario, PKS 1502+106 can have produced up to of order one muon neutrino with energy exceeding 100 TeV in the lifetime of IceCube. An appealing feature of this model is that the required proton luminosity is consistent with the average required proton luminosity if blazars power the observed ultra-high-energy-cosmic-ray flux and well below the source's Eddington luminosity. If such a model is ubiquitous among FSRQs, additional neutrinos can be expected from other bright sources with energy $\gtrsim 10$ PeV., Comment: 18 pages, 9 figures, published in JCAP
Published: 2021
Full Text: View/download PDF

26. Identification of a Local Sample of Gamma-Ray Bursts Consistent with a Magnetar Giant Flare Origin

Author: Burns, E., Svinkin, D., Hurley, K., Wadiasingh, Z., Negro, M., Younes, G., Hamburg, R., Ridnaia, A., Cook, D., Cenko, S. B., Aloisi, R., Ashton, G., Baring, M., Briggs, M. S., Christensen, N., Frederiks, D., Goldstein, A., Hui, C. M., Kaplan, D. L., Kasliwal, M. M., Kocevski, D., Roberts, O. J., Savchenko, V., Tohuvavohu, A., Veres, P., and Wilson-Hodge, C. A.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Cosmological Gamma-Ray Bursts (GRBs) are known to arise from distinct progenitor channels: short GRBs mostly from neutron star mergers and long GRBs from a rare type of core-collapse supernova (CCSN) called collapsars. Highly magnetized neutron stars called magnetars also generate energetic, short-duration gamma-ray transients called Magnetar Giant Flares (MGFs). Three have been observed from the Milky Way and its satellite galaxies and they have long been suspected to contribute a third class of extragalactic GRBs. We report the unambiguous identification of a distinct population of 4 local ($<$5 Mpc) short GRBs, adding GRB 070222 to previously discussed events. While identified solely based on alignment to nearby star-forming galaxies, their rise time and isotropic energy release are independently inconsistent with the larger short GRB population at $>$99.9% confidence. These properties, the host galaxies, and non-detection in gravitational waves all point to an extragalactic MGF origin. Despite the small sample, the inferred volumetric rates for events above $4\times10^{44}$ erg of $R_{MGF}=3.8_{-3.1}^{+4.0}\times10^5$ Gpc$^{-3}$ yr$^{-1}$ place MGFs as the dominant gamma-ray transient detected from extragalactic sources. As previously suggested, these rates imply that some magnetars produce multiple MGFs, providing a source of repeating GRBs. The rates and host galaxies favor common CCSN as key progenitors of magnetars., Comment: Accepted for publication in ApJL. Updated versions fix typos in the table and updates citations to published versions
Published: 2021
Full Text: View/download PDF

27. Rapid Spectral Variability of a Giant Flare from a Magnetar in NGC 253

Author: Roberts, O. J., Veres, P., Baring, M. G., Briggs, M. S., Kouveliotou, C., Bissaldi, E., Younes, G., Chastain, S. I., DeLaunay, J. J., Huppenkothen, D., Tohuvavohu, A., Bhat, P. N., Gogus, E., van der Horst, A. J., Kennea, J. A., Kocevski, D., Linford, J. D., Guiriec, S., Hamburg, R., Wilson-Hodge, C. A., and Burns, E.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Magnetars are slowly-rotating neutron stars with extremely strong magnetic fields ($10^{13-15}$ G), episodically emitting $\sim100$ ms long X-ray bursts with energies of $\sim10^{40-41}$ erg. Rarely, they produce extremely bright, energetic giant flares that begin with a short ($\sim0.2$ s), intense flash, followed by fainter, longer lasting emission modulated by the magnetar spin period (typically 2-12 s), thus confirming their origin. Over the last 40 years, only three such flares have been observed in our local group; they all suffered from instrumental saturation due to their extreme intensity. It has been proposed that extra-galactic giant flares likely constitute a subset of short gamma-ray bursts, noting that the sensitivity of current instrumentation prevents us from detecting the pulsating tail, while the initial bright flash is readily observable out to distances $\sim 10-20$ Mpc. Here, we report X- and gamma-ray observations of GRB 200415A, which exhibits a rapid onset, very fast time variability, flat spectra and significant sub-millisecond spectral evolution. These attributes match well with those expected for a giant flare from an extra-galactic magnetar, noting that GRB 200415A is directionally associated with the galaxy NGC 253 ($\sim$3.5 Mpc away). The detection of $\sim3$ MeV photons provides definitive evidence for relativistic motion of the emitting plasma. The observed rapid spectral evolution can naturally be generated by radiation emanating from such rapidly-moving gas in a rotating magnetar.
Published: 2021
Full Text: View/download PDF

28. Swift Multiwavelength Follow-up of LVC S200224ca and the Implications for Binary Black Hole Mergers

Author: Klingler, N. J., Lien, A., Oates, S. R., Kennea, J. A., Evans, P. A., Tohuvavohu, A., Zhang, B., Page, K. L., Cenko, S. B., Barthelmy, S. D., Beardmore, A. P., Bernardini, M. G., Breeveld, A. A., Brown, P. J., Burrows, D. N., Campana, S., Cusumano, G., D'Aì, A., D'Avanzo, P., D'Elia, V., de Pasquale, M., Emery, S. W. K., Garcia, J., Giommi, P., Gronwall, C., Hartmann, D. H., Krimm, H. A., Kuin, N. P. M., Malesani, D. B., Marshall, F. E., Melandri, A., Nousek, J. A., O'Brien, P. T., Osborne, J. P., Palmer, D. M., Page, M. J., Perri, M., Racusin, J. L., Sakamoto, T., Sbarufatti, B., Schlieder, J. E., Siegel, M. H., Tagliaferri, G., and Troja, E.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: On 2020 February 24, during their third observing run ("O3"), the Laser Interferometer Gravitational-wave Observatory and Virgo Collaboration (LVC) detected S200224ca: a candidate gravitational wave (GW) event produced by a binary black hole (BBH) merger. This event was one of the best-localized compact binary coalescences detected in O3 (with 50%/90% error regions of 13/72 deg$^2$), and so the Neil Gehrels Swift Observatory performed rapid near-UV/X-ray follow-up observations. Swift-XRT and UVOT covered approximately 79.2% and 62.4% (respectively) of the GW error region, making S200224ca the BBH event most thoroughly followed-up in near-UV (u-band) and X-ray to date. No likely EM counterparts to the GW event were found by the Swift BAT, XRT, or UVOT, nor by other observatories. Here we report on the results of our searches for an EM counterpart, both in the BAT data near the time of the merger, and in follow-up UVOT/XRT observations. We also discuss the upper limits we can place on EM radiation from S200224ca, and the implications these limits have on the physics of BBH mergers. Namely, we place a shallow upper limit on the dimensionless BH charge, $\hat{q} < 1.4 \times10^{-4}$, and an upper limit on the isotropic-equivalent energy of a blast wave $E < 4.1\times10^{51}$ erg (assuming typical GRB parameters)., Comment: 14 pages, 6 figures, accepted for publication in ApJ
Published: 2020
Full Text: View/download PDF

29. Swift X-ray Follow-Up Observations of Gravitational Wave and High-Energy Neutrino Coincident Signals

Author: Keivani, Azadeh, Kennea, Jamie A., Evans, Phil A., Tohuvavohu, Aaron, Rapisura, Riki, Countryman, Stefan, Bartos, Imre, Marka, Zsuzsa, Veske, Doga, Marka, Szabolcs, and Fox, Derek B.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Electromagnetic observations of gravitational wave and high-energy neutrino events are crucial in understanding the physics of their astrophysical sources. X-ray counterparts are especially useful in studying the physics of the jet, the energy of the outflow, and the particle acceleration mechanisms in the system. We present the Neil Gehrels Swift Observatory prompt searches for X-ray counterparts to the joint gravitational wave and high-energy neutrino coincident events that happened during the third observing run of LIGO/Virgo. Swift observed the overlap between gravitational wave and neutrino error regions for three of the considerable (p-value < 1%) joint gravitational wave and high-energy neutrino coincident alerts, which were generated by the IceCube Neutrino Observatory in realtime after triggering by the LIGO/Virgo gravitational wave public alerts. The searches did not associate any X-ray counterparts to any of the joint gravitational wave and high-energy neutrino coincident events, however, the follow-up of these alerts significantly improved the tiling techniques covering regions between the gravitational wave sky maps and neutrino's error regions, making the realtime system ready for the future potential discoveries. We will discuss the details of each follow-up procedure, the results of each search, and the plans for future searches., Comment: 10 pages, 3 figures, 4 tables, Submitted to ApJ
Published: 2020
Full Text: View/download PDF

30. Swift-XRT follow-up of gravitational wave triggers during the third aLIGO/Virgo observing run

Author: Page, K. L., Evans, P. A., Tohuvavohu, A., Kennea, J. A., Klingler, N. J., Cenko, S. B., Oates, S. R., Ambrosi, E., Barthelmy, S. D., Beardmore, A. P., Bernardini, M. G., Breeveld, A. A., Brown, P. J., Burrows, D. N., Campana, S., Caputo, R., Cusumano, G., D'Ai, A., D'Avanzo, P., D'Elia, V., De Pasquale, M., Emery, S. W. K., Giommi, P., Gronwall, C., Hartmann, D. H., Krimm, H. A., Kuin, N. P. M., Malesani, D. B., Marshall, F. E., Melandri, A., Nousek, J. A., O'Brien, P. T., Osborne, J. P., Pagani, C., Page, M. J., Palmer, D. M., Perri, M., Racusin, J. L., Sakamoto, T., Sbarufatti, B., Schlieder, J. E., Siegel, M. H., Tagliaferri, G., and Troja, E.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Neil Gehrels Swift Observatory followed up 18 gravitational wave (GW) triggers from the LIGO/Virgo collaboration during the O3 observing run in 2019/2020, performing approximately 6500 pointings in total. Of these events, four were finally classified (if real) as binary black hole (BH) triggers, six as binary neutron star (NS) events, two each of NSBH and Mass Gap triggers, one an unmodelled (Burst) trigger, and the remaining three were subsequently retracted. Thus far, four of these O3 triggers have been formally confirmed as real gravitational wave events. While no likely electromagnetic counterparts to any of these GW events have been identified in the X-ray data (to an average upper limit of 3.60 x 10^{-12} erg cm^{-2} s^{-1} over 0.3-10 keV), or at other wavelengths, we present a summary of all the Swift-XRT observations performed during O3, together with typical upper limits for each trigger observed. The majority of X-ray sources detected during O3 were previously uncatalogued; while some of these will be new (transient) sources, others are simply too faint to have been detected by earlier survey missions such as ROSAT. The all-sky survey currently being performed by eROSITA will be a very useful comparison for future observing runs, reducing the number of apparent candidate X-ray counterparts by up to 95 per cent., Comment: 23 pages (including 4 pages of references, and a 4 page table in the appendix), 5 figures (4 in colour), accepted for publication in MNRAS. (Replaced due to annoying spelling typo in the abstract.)
Published: 2020
Full Text: View/download PDF

31. Rotation Optimized Filter for Longevity (ROFL): Increasing the lifetime of Swift/UVOT simply

Author: Tohuvavohu, Aaron
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: I demonstrate that a very simple and safe change to the planning software filter assignment algorithm for the Ultraviolet/Optical Telescope (UVOT) onboard the Neil Gehrels Swift Observatory can reduce the number of filter wheel rotations by $>10\%$, and its adoption is thus likely to significantly extend the usable lifetime of the UVOT instrument. I recommend that such a scheme be implemented., Comment: Published in RNAAS
Published: 2020

32. Multimessenger observations of counterparts to IceCube-190331A

Author: Krauß, Felicia, Calamari, Emily, Keivani, Azadeh, Coleiro, Alexis, Evans, Phil A., Fox, Derek B., Kennea, Jamie A., Mészáros, Peter, Murase, Kohta, Russell, Thomas D., Santander, Marcos, and Tohuvavohu, Aaron
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: High-energy neutrinos are a promising tool for identifying astrophysical sources of high and ultra-high energy cosmic rays (UHECR). Prospects of detecting neutrinos at high energies ($\gtrsim$TeV) from blazars have been boosted after the recent association of IceCube-170922A and TXS 0506+056. We investigate the high-energy neutrino, IceCube-190331A, a high-energy starting event (HESE) with a high likelihood of being astrophysical in origin. We initiated a Swift/XRT and UVOT tiling mosaic of the neutrino localisation, and followed up with ATCA radio observations, compiling a multiwavelength SED for the most likely source of origin. NuSTAR observations of the neutrino location and a nearby X-ray source were also performed. We find two promising counterpart in the 90% confidence localisation region and identify the brightest as the most likely counterpart. However, no Fermi/LAT $\gamma$-ray source and no prompt Swift/BAT source is consistent with the neutrino event. At this point it is unclear whether any of the counterparts produced IceCube-190331A. We note that the Helix Nebula is also consistent with the position of the neutrino event, and we calculate that associated particle acceleration processes cannot produce the required energies to generate a high-energy HESE neutrino., Comment: 10 pages, 8 figures. Accepted for publication by MNRAS
Published: 2020
Full Text: View/download PDF

33. Observation of inverse Compton emission from a long $\gamma$-ray burst

Author: Acciari, V. A., Ansoldi, S., Antonelli, L. A., Engels, A. Arbet, Baack, D., Babić, A., Banerjee, B., de Almeida, U. Barres, Barrio, J. A., González, J. Becerra, Bednarek, W., Bellizzi, L., Bernardini, E., Berti, A., Besenrieder, J., Bhattacharyya, W., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Bošnjak, Ž., Busetto, G., Carosi, R., Ceribella, G., Chai, Y., Chilingaryan, A., Cikota, S., Colak, S. M., Colin, U., Colombo, E., Contreras, J. L., Cortina, J., Covino, S., D'Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Delfino, M., Delgado, J., Depaoli, D., Di Pierro, F., Di Venere, L., Espiñeira, E. Do Souto, Prester, D. Dominis, Donini, A., Dorner, D., Doro, M., Elsaesser, D., Ramazani, V. Fallah, Fattorini, A., Ferrara, G., Fidalgo, D., Foffano, L., Fonseca, M. V., Font, L., Fruck, C., Fukami, S., López, R. J. García, Garczarczyk, M., Gasparyan, S., Gaug, M., Giglietto, N., Giordano, F., Godinović, N., Green, D., Guberman, D., Hadasch, D., Hahn, A., Herrera, J., Hoang, J., Hrupec, D., Hütten, M., Inada, T., Inoue, S., Ishio, K., Iwamura, Y., Jouvin, L., Kerszberg, D., Kubo, H., Kushida, J., Lamastra, A., Lelas, D., Leone, F., Lindfors, E., Lombardi, S., Longo, F., López, M., López-Coto, R., López-Oramas, A., Loporchio, S., Fraga, B. Machado de Oliveira, Maggio, C., Majumdar, P., Makariev, M., Mallamaci, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martínez, M., Mazin, D., Mićanović, S., Miceli, D., Minev, M., Miranda, J. M., Mirzoyan, R., Molina, E., Moralejo, A., Morcuende, D., Moreno, V., Moretti, E., Munar-Adrover, P., Neustroev, V., Nigro, C., Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nogués, L., Nozaki, S., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes, J. M., Peñil, P., Peresano, M., Persic, M., Moroni, P. G. Prada, Prandini, E., Puljak, I., Rhode, W., Ribó, M., Rico, J., Righi, C., Rugliancich, A., Saha, L., Sahakyan, N., Saito, T., Sakurai, S., Satalecka, K., Schmidt, K., Schweizer, T., Sitarek, J., Šnidarić, I., Sobczynska, D., Somero, A., Stamerra, A., Strom, D., Strzys, M., Suda, Y., Surić, T., Takahashi, M., Tavecchio, F., Temnikov, P., Terzić, T., Teshima, M., Torres-Albà, N., Tosti, L., Vagelli, V., van Scherpenberg, J., Vanzo, G., Acosta, M. Vazquez, Vigorito, C. F., Vitale, V., Vovk, I., Will, M., Zarić, D., Nava, L., Veres, P., Bhat, P. N., Briggs, M. S., Cleveland, W. H., Hamburg, R., Hui, C. M., Mailyan, B., Preece, R. D., Roberts, O., von Kienlin, A., Wilson-Hodge, C. A., Kocevski, D., Arimoto, M., Tak, D., Asano, K., Axelsson, M., Barbiellini, G., Bissaldi, E., Dirirsa, F. Fana, Gill, R., Granot, J., McEnery, J., Razzaque, S., Piron, F., Racusin, J. L., Thompson, D. J., Campana, S., Bernardini, M. G., Kuin, N. P. M., Siegel, M. H., Cenko, S. Bradley, O'Brien, P., Capalbi, M., D'Aì, A., De Pasquale, M., Gropp, J., Klingler, N., Osborne, J. P., Perri, M., Starling, R., Tagliaferri, G., Tohuvavohu, A., Ursi, A., Tavani, M., Cardillo, M., Casentini, C., Piano, G., Evangelista, Y., Verrecchia, F., Pittori, C., Lucarelli, F., Bulgarelli, A., Parmiggiani, N., Anderson, G. E., Anderson, J. P., Bernardi, G., Bolmer, J., Caballero-García, M. D., Carrasco, I. M., Castellón, A., Segura, N. Castro, Castro-Tirado, A. J., Cherukuri, S. V., Cockeram, A. M., D'Avanzo, P., Di Dato, A., Diretse, R., Fender, R. P., Fernández-García, E., Fynbo, J. P. U., Fruchter, A. S., Greiner, J., Gromadzki, M., Heintz, K. E., Heywood, I., van der Horst, A. J., Hu, Y. -D., Inserra, C., Izzo, L., Jaiswal, V., Jakobsson, P., Japelj, J., Kankare, E., Kann, D. A., Kouveliotou, C., Klose, S., Levan, A. J., Li, X. Y., Lotti, S., Maguire, K., Malesani, D. B., Manulis, I., Marongiu, M., Martin, S., Melandri, A., Michałowski, M., Miller-Jones, J. C. A., Misra, K., Moin, A., Mooley, K. P., Nasri, S., Nicholl, M., Noschese, A., Novara, G., Pandey, S. B., Peretti, E., del Pulgar, C. J. Pérez, Pérez-Torres, M. A., Perley, D. A., Piro, L., Ragosta, F., Resmi, L., Ricci, R., Rossi, A., Sánchez-Ramírez, R., Selsing, J., Schulze, S., Smartt, S. J., Smith, I. A., Sokolov, V. V., Stevens, J., Tanvir, N. R., Thóne, C. C., Tiengo, A., Tremou, E., Troja, E., Postigo, A. de Ugarte, Vergani, S. D., Wieringa, M., Woudt, P. A., Xu, D., Yaron, O., and Young, D. R.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Long-duration gamma-ray bursts (GRBs) originate from ultra-relativistic jets launched from the collapsing cores of dying massive stars. They are characterised by an initial phase of bright and highly variable radiation in the keV-MeV band that is likely produced within the jet and lasts from milliseconds to minutes, known as the prompt emission. Subsequently, the interaction of the jet with the external medium generates external shock waves, responsible for the afterglow emission, which lasts from days to months, and occurs over a broad energy range, from the radio to the GeV bands. The afterglow emission is generally well explained as synchrotron radiation by electrons accelerated at the external shock. Recently, an intense, long-lasting emission between 0.2 and 1 TeV was observed from the GRB 190114C. Here we present the results of our multi-frequency observational campaign of GRB~190114C, and study the evolution in time of the GRB emission across 17 orders of magnitude in energy, from $5\times10^{-6}$ up to $10^{12}$\,eV. We find that the broadband spectral energy distribution is double-peaked, with the TeV emission constituting a distinct spectral component that has power comparable to the synchrotron component. This component is associated with the afterglow, and is satisfactorily explained by inverse Compton upscattering of synchrotron photons by high-energy electrons. We find that the conditions required to account for the observed TeV component are not atypical, supporting the possibility that inverse Compton emission is commonly produced in GRBs.
Published: 2020
Full Text: View/download PDF

34. A Demonstration of Extremely Low Latency $\gamma$-ray, X-Ray & UV Follow-Up of a Millisecond Radio Transient

Author: Tohuvavohu, Aaron, Law, Casey J., Kennea, Jamie A., Adams, Elizabeth A. K., Aggarwal, Kshitij, Bower, Geoffrey, Burke-Spolaor, Sarah, Butler, Bryan J., Cannon, John M., Cenko, S. Bradley, DeLaunay, James, Demorest, Paul, Drout, Maria R., Evans, Philip A., Hirschauer, Alec S., Lazio, T. J. W., Linford, Justin, Marshall, Francis E., McQuinn, K., Petroff, Emily, and Skillman, Evan D.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: We report results of a novel high-energy follow-up observation of a potential Fast Radio Burst. The radio burst was detected by VLA/realfast and followed-up by the Neil Gehrels Swift Observatory in very low latency utilizing new operational capabilities of Swift (arXiv:2005.01751), with pointed soft X-ray and UV observations beginning at T0+32 minutes, and hard X-ray/gamma-ray event data saved around T0. These observations are $>10$x faster than previous X-ray/UV follow-up of any radio transient to date. No emission is seen coincident with the FRB candidate at T0, with a 0.2s fluence $5\sigma$ upper limit of $1.35\times10^{-8}$ erg cm$^{-2}$ (14-195 keV) for a SGR 1935+2154-like flare, nor at T0+32 minutes down to $3\sigma$ upper limits of 22.18 AB mag in UVOT u band, and $3.33\times10^{-13}$ erg cm$^{-2}$ s$^{-1}$ from 0.3-10 keV for the 2 ks observation. The candidate FRB alone is not significant enough to be considered astrophysical, so this note serves as a technical demonstration. These new Swift operational capabilities will allow future FRB detections to be followed up with Swift at even lower latencies than demonstrated here: 15-20 minutes should be regularly achievable, and 5-10 minutes occasionally achievable. We encourage FRB detecting facilities to release alerts in low latency to enable this science., Comment: Technical note and capability update for the community. We encourage low latency FRB alerts from relevant facilities to enable this science
Published: 2020

35. Gamma-ray Urgent Archiver for Novel Opportunities (GUANO): Swift/BAT event data dumps on demand to enable sensitive sub-threshold GRB searches

Author: Tohuvavohu, Aaron, Kennea, Jamie A., DeLaunay, James, Palmer, David M., Cenko, S. Bradley, and Barthelmy, Scott
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: We introduce a new capability of the Neil Gehrels Swift Observatory, to provide event data from the Burst Alert Telescope (BAT) on demand in response to transients detected by other instruments. These event data are not continuously available due to the large telemetry load, but are critical to recovering weak or sub-threshold GRBs that are not triggered onboard, such as the likely counterparts to GW-detected off-axis binary neutron star mergers. We show that the availability of event data can effectively increase the rate of detections, and arcminute localizations, of GRB 170817-like bursts by >400%. We describe a spacecraft commanding pipeline purpose built to enable this science; to our knowledge the first fully autonomous extremely-low-latency commanding of a space telescope for scientific purposes. This pipeline has been successfully run in its complete form since early 2020, and has resulted in the recovery of BAT event data for >700 externally triggered events to date (GWs, neutrinos, GRBs triggered by other facilities, FRBs), now running with a success rate of ~90%. We exemplify the utility of this new capability by using the resultant data to (1) set the most sensitive (8 sigma) upper limits of $8.1\times10^{-8}$ erg cm$^{-2}$ s$^{-1}$ (14-195 keV) on prompt 1s duration short GRB-like emission within $\pm$ 15s of the unmodelled GW burst candidate S200114f, and (2) provide arcminute localizations for short GRB 200325A and other bursts. We show that using data from GUANO to localize GRBs discovered elsewhere, we can increase the net rate of arcminute localized GRBs by 10-20% per year. Along with the scientific yield of more sensitive searches for sub-threshold GRBs, the new capabilities designed for this project will enable further rapid response Target of Opportunity capabilities for Swift, and have implications for the design of future rapid-response space telescopes., Comment: Submitted to AAS Journals. 16 pages, 11 figures. A live record of data recovered can be found at https://www.swift.psu.edu/guano/
Published: 2020
Full Text: View/download PDF

36. Constraining Possible γ-Ray Burst Emission from GW230529 Using Swift-BAT and Fermi-GBM

Author: Samuele Ronchini, Suman Bala, Joshua Wood, James Delaunay, Simone Dichiara, Jamie A. Kennea, Tyler Parsotan, Gayathri Raman, Aaron Tohuvavohu, Naresh Adhikari, Narayana P. Bhat, Sylvia Biscoveanu, Elisabetta Bissaldi, Eric Burns, Sergio Campana, Koustav Chandra, William H. Cleveland, Sarah Dalessi, Massimiliano De Pasquale, Juan García-Bellido, Claudio Gasbarra, Misty M. Giles, Ish Gupta, Dieter Hartmann, Boyan A. Hristov, Michelle C. Hui, Rahul Kashyap, Daniel Kocevski, Bagrat Mailyan, Christian Malacaria, Hiroyuki Nakano, Giacomo Principe, Oliver J. Roberts, Bangalore Sathyaprakash, Lijing Shao, Eleonora Troja, Péter Veres, and Colleen A. Wilson-Hodge
Subjects: High energy astrophysics, Gamma-ray astronomy, Gamma-ray bursts, Gravitational waves, Astrophysics, QB460-466
Abstract: GW230529 is the first compact binary coalescence detected by the LIGO–Virgo–KAGRA collaboration with at least one component mass confidently in the lower mass gap, corresponding to the range 3–5 M _⊙ . If interpreted as a neutron star–black hole merger, this event has the most symmetric mass ratio detected so far and therefore has a relatively high probability of producing electromagnetic (EM) emission. However, no EM counterpart has been reported. At the merger time t _0 , Swift-BAT and Fermi-GBM together covered 100% of the sky. Performing a targeted search in a time window [ t _0 − 20 s, t _0 + 20 s], we report no detection by the Swift-BAT and Fermi-GBM instruments. Combining the position-dependent γ -ray flux upper limits and the gravitational-wave posterior distribution of luminosity distance, sky localization, and inclination angle of the binary, we derive constraints on the characteristic luminosity and structure of the jet possibly launched during the merger. Assuming a top-hat jet structure, we exclude at 90% credibility the presence of a jet that has at the same time an on-axis isotropic luminosity ≳10 ^48 erg s ^−1 in the bolometric band 1 keV–10 MeV and a jet opening angle ≳15°. Similar constraints are derived by testing other assumptions about the jet structure profile. Excluding GRB 170817A, the luminosity upper limits derived here are below the luminosity of any GRB observed so far.
Published: 2024
Full Text: View/download PDF

37. Swiftly Chasing Gravitational Waves across the Sky in Real Time

Author: Aaron Tohuvavohu, Jamie A. Kennea, Christopher J. Roberts, James DeLaunay, Samuele Ronchini, S. Bradley Cenko, Becca Ewing, Ryan Magee, Cody Messick, Surabhi Sachdev, and Leo P. Singer
Subjects: Gravitational waves, Gamma-ray bursts, Space telescopes, Astrophysics, QB460-466
Abstract: We introduce a new capability of the Neil Gehrels Swift Observatory, dubbed “continuous commanding,” that achieves 10 s latency response time on orbit to unscheduled target-of-opportunity requests received on the ground. We show that this will allow Swift to respond to premerger (early-warning) gravitational-wave (GW) detections, rapidly slewing the Burst Alert Telescope (BAT) across the sky to place the GW origin in the BAT field of view at or before merger time. This will dramatically increase the GW/gamma-ray burst (GRB) codetection rate and enable prompt arcminute localization of a neutron star merger. We simulate the full Swift response to a GW early-warning alert, including input sky maps produced at different early-warning times, a complete model of the Swift attitude control system, and a full accounting of the latency between the GW detectors and the spacecraft. 60 s of early warning can double the rate of a prompt GRB detection with arcminute localization, and 140 s guarantees observation anywhere on the unocculted sky, even with localization areas ≫1000 deg ^2 . While 140 s is beyond current GW detector sensitivities, 30–70 s is achievable today. We show that the detection yield is now limited by the latency of LIGO/Virgo cyberinfrastructure and motivate a focus on its reduction. Continuous commanding has been integrated as a general capability of Swift, significantly increasing its versatility in response to the growing demands of time-domain astrophysics. We demonstrate this potential on an externally triggered fast radio burst (FRB), slewing 81° across the sky, and collecting X-ray and UV photons from the source position
Published: 2024
Full Text: View/download PDF

38. The Gravitational Wave Treasure Map: A Tool to Coordinate, Visualize, and Assess the Electromagnetic Follow-Up of Gravitational Wave Events

Author: Wyatt, Samuel D., Tohuvavohu, Aaron, Arcavi, Iair, Lundquist, Michael J., Howell, D. Andrew, and Sand, David J.
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: We present the Gravitational Wave Treasure Map, a tool to coordinate, visualize, and assess the electromagnetic follow-up of gravitational wave (GW) events. With typical GW localization regions of hundreds to thousands of square degrees and dozens of active follow-up groups, the pursuit of electromagnetic (EM) counterparts is a challenging endeavor, but the scientific payoff for early discovery of any counterpart is clear. With this tool, we provide a website and API interface that allows users to easily see where other groups have searched and better inform their own follow-up search efforts. A strong community of Treasure Map users will increase the overall efficiency of EM counterpart searches and will play a fundamental role in the future of multi-messenger astronomy., Comment: 14 pages, 8 figures, Accepted to ApJ
Published: 2020
Full Text: View/download PDF

39. Multi-Epoch Modeling of TXS 0506+056 and Implications for Long-Term High-Energy Neutrino Emission

Author: Petropoulou, Maria, Murase, Kohta, Santander, Marcos, Buson, Sara, Tohuvavohu, Aaron, Kawamuro, Taiki, Vasilopoulos, Georgios, Negoro, Hiroshi, Ueda, Yoshihiro, Siegel, Michael H., Keivani, Azadeh, Kawai, Nobuyuki, Mastichiadis, Apostolos, and Dimitrakoudis, Stavros
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: The IceCube report of a $\sim 3.5\sigma$ excess of $13\pm5$ neutrino events in the direction of the blazar TXS 05056+056 in 2014-2015 and the 2017 detection of a high-energy neutrino, IceCube-170922A, during a gamma-ray flare from the same blazar, have revived the interest in scenarios for neutrino production in blazars. We perform comprehensive analyses on the long-term electromagnetic emission of TXS 05056+056 using optical, X-ray, and gamma-ray data from the All-Sky Automated Survey for Supernovae (ASAS-SN), the Neil Gehrels Swift Observatory (Swift), the Monitor of All-sky X-ray Image (MAXI), and the Fermi Large Area Telescope (Fermi-LAT). We also perform numerical modeling of the spectral energy distributions (SEDs) in four epochs prior to 2017 with contemporaneous gamma-ray and lower energy (optical and/or X-ray) data. We find that the multi-epoch SEDs are consistent with a hybrid leptonic scenario, where the gamma-rays are produced in the blazar zone via external inverse Compton scattering of accelerated electrons, and high-energy neutrinos are produced via the photomeson production process of co-accelerated protons. The multi-epoch SEDs can be satisfactorily explained with the same jet parameters and variable external photon density and electron luminosity. Using the maximal neutrino flux derived for each epoch, we put an upper limit of $\sim0.4-2$ on the muon neutrino number in ten years of IceCube observations. Our results are consistent with the IceCube-170922A detection, which can be explained as an upper fluctuation from the average neutrino rate expected from the source, but in strong tension with the 2014-2015 neutrino flare., Comment: 24 pages, 8 figures, 11 tables, accepted for publication in ApJ
Published: 2019
Full Text: View/download PDF

40. Swift-XRT Follow-up of Gravitational Wave Triggers in the Second Advanced LIGO/Virgo Observing Run

Author: Klingler, N. J., Kennea, J. A., Evans, P. A., Tohuvavohu, A., Cenko, S. B., Barthelmy, S. D., Beardmore, A. P., Breeveld, A. A., Brown, P. J., Burrows, D. N., Campana, S., Cusumano, G., D'Aì, A., D'Avanzo, P., D'Elia, V., de Pasquale, M., Emery, S. W. K., Garcia, J., Giommi, P., Gronwall, C., Hartmann, D. H., Krimm, H. A., Kuin, N. P. M., Lien, A., Malesani, D. B., Marshall, F. E., Melandri, A., Nousek, J. A., Oates, S. R., O'Brien, P. T., Osborne, J. P., Page, K. L., Palmer, D. M., Perri, M., Racusin, J. L., Siegel, M. H., Sakamoto, T., Sbarufatti, B., Tagliaferri, G., and Troja, E.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Neil Gehrels Swift Observatory carried out prompt searches for gravitational wave (GW) events detected by the LIGO/Virgo Collaboration (LVC) during the second observing run ("O2"). Swift performed extensive tiling of eight LVC triggers, two of which had very low false-alarm rates (GW 170814 and the epochal GW 170817), indicating a high confidence of being astrophysical in origin; the latter was the first GW event to have an electromagnetic counterpart detected. In this paper we describe the follow-up performed during O2 and the results of our searches. No GW electromagnetic counterparts were detected; this result is expected, as GW 170817 remained the only astrophysical event containing at least one neutron star after LVC's later retraction of some events. A number of X-ray sources were detected, with the majority of identified sources being active galactic nuclei. We discuss the detection rate of transient X-ray sources and their implications in the O2 tiling searches. Finally, we describe the lessons learned during O2, and how these are being used to improve the \swift\ follow-up of GW events. In particular, we simulate a population of GRB afterglows to evaluate our source ranking system's ability to differentiate them from unrelated and uncatalogued X-ray sources. We find that $\approx$60-70% of afterglows whose jets are oriented towards Earth will be given high rank (i.e., "interesting" designation) by the completion of our second follow-up phase (assuming their location in the sky was observed), but that this fraction can be increased to nearly 100% by performing a third follow-up observation of sources exhibiting fading behavior., Comment: 18 pages, 4 figures, 2 tables, accepted for publication in ApJS
Published: 2019
Full Text: View/download PDF

41. Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow

Author: Ajello, M., Arimoto, M., Axelsson, M., Baldini, L., Barbiellini, G., Bastieri, D., Bellazzini, R., Berretta, A., Bissaldi, E., Blandford, R. D., Bonino, R., Bottacini, E., Bregeon, J., Bruel, P., Buehler, R., Burns, E., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Chen, S., Chiaro, G., Ciprini, S., Cohen-Tanugi, J., Costantin, D., Cutini, S., D'Ammando, F., DeKlotz, M., Luque, P. de la Torre, de Palma, F., Desai, A., Di Lalla, N., Di Venere, L., Dirirsa, F. Fana, Fegan, S. J., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Gargano, F., Gasparrini, D., Giglietto, N., Gill, R., Giordano, F., Giroletti, M., Granot, J., Green, D., Grenier, I. A., Grondin, M. H., Guiriec, S., Hays, E., Horan, D., Jóhannesson, G., Kocevski, D., Kovac'evic', M., Kuss, M., Larsson, S., Latronico, L., Lemoine-Goumard, M., Li, J., Liodakis, I., Longo, F., Loparco, F., Lovellette, M. N., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Martí-Devesa, G., Mazziotta, M. N., McEnery, J. E., Mereu, I., Meyer, M., Michelson, P. F., Mitthumsiri, W., Mizuno, T., Monzani, M. E., Moretti, E., Morselli, A., Moskalenko, I. V., Negro, M., Nuss, E., Omodei, N., Orienti, M., Orlando, E., Palatiello, M., Paliya, V. S., Paneque, D., Pei, Z., Persic, M., Pesce-Rollins, M., Petrosian, V., Piron, F., Poon, H., Porter, T. A., Principe, G., Racusin, J. L., Rainò, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Ryde, F., Parkinson, P. M. Saz, Serini, D., Sgrò, C., Siskind, E. J., Spandre, G., Spinelli, P., Tajima, H., Takagi, K., Takahashi, M. N., Tak, D., Thayer, J. B., Thompson, D. J., Torres, D. F., Troja, E., Valverde, J., Van Klaveren, B., Wood, K., Yassine, M., Zaharijas, G., Bhat, P. N., Briggs, M. S., Cleveland, W., Giles, M., Goldstein, A., Hui, M., Malacaria, C., Preece, R., Roberts, O., Veres, P., von Kienlin, A., Cenko, S. B., O'Brien, P., Beardmore, A. P., Lien, A., Osborne, J. P., Tohuvavohu, A., D'Elia, V., D'A, A., Perri, M., Gropp, J., Klingler, N., Capalbi, M., Tagliaferri, G., and Stamatikos, M.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: We report on the observations of gamma-ray burst (GRB) 190114C by the Fermi Gamma-ray Space Telescope and the Neil Gehrels Swift Observatory. The early-time observations reveal multiple emission components that evolve independently, with a delayed power-law component that exhibits significant spectral attenuation above 40 MeV in the first few seconds of the burst. This power-law component transitions to a harder spectrum that is consistent with the afterglow emission observed at later times. This afterglow component is clearly identifiable in the GBM and BAT light curves as a slowly fading emission component on which the rest of the prompt emission is superimposed. As a result, we are able to constrain the transition from internal shock to external shock dominated emission. We find that the temporal and spectral evolution of the broadband afterglow emission can be well modeled as synchrotron emission from a forward shock propagating into a wind-like circumstellar environment and find that high-energy photons observed by Fermi LAT are in tension with the theoretical maximum energy that can be achieved through synchrotron emission from a shock. These violations of the maximum synchrotron energy are further compounded by the detection of very high energy (VHE) emission above 300 GeV by MAGIC concurrent with our observations. We conclude that the observations of VHE photons from GRB 190114C necessitates either an additional emission mechanism at very high energies that is hidden in the synchrotron component in the LAT energy range, an acceleration mechanism that imparts energy to the particles at a rate that is faster than the electron synchrotron energy loss rate, or revisions of the fundamental assumptions used in estimating the maximum photon energy attainable through the synchrotron process., Comment: 24 pages, 9 figures, Accepted to ApJ
Published: 2019
Full Text: View/download PDF

42. Scheduling Discovery in the 2020s

Author: Bellm, Eric C., Ford, Eric B., Tohuvavohu, Aaron, Coughlin, Michael W., Morris, Brett, Miller, Bryan, Sobeck, Jennifer, Riddle, Reed, Dong, Chuanfei, and Yoachim, Peter
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: The 2020s will be the most data-rich decade of astronomy in history. As the scale and complexity of our surveys increase, the problem of scheduling becomes more critical. We must develop high-quality scheduling approaches, implement them as open-source software, and begin linking the typically separate stages of observation and data analysis., Comment: 10 pages; Astro2020 APC White Paper
Published: 2019

43. Opportunities for Multimessenger Astronomy in the 2020s

Author: Burns, E., Tohuvavohu, A., Bellovary, J. M., Blaufuss, E., Brandt, T. J., Buson, S., Caputo, R., Cenko, S. B., Christensen, N., Conklin, J. W., D'Ammando, F., Ford, K. E. S., Franckowiak, A., Fryer, C., Hui, C. M., Holley-Bockelmann, K., Jaffe, T., Kupfer, T., Karovska, M., Metzger, B. D., Racusin, J., Rani, B., Santander, M., Tomsick, J., and Wilson-Hodge, C.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Electromagnetic observations of the sky have been the basis for our study of the Universe for millennia, cosmic ray studies are now entering their second century, the first neutrinos from an astrophysical source were identified three decades ago, and gravitational waves were directly detected only four years ago. Detections of these messengers are now common. Astrophysics will undergo a revolution in the 2020s as multimessenger detections become routine. The 8th Astro2020 Thematic Area is Multimessenger Astronomy and Astrophysics, which includes the identification of the sources of gravitational waves, astrophysical and cosmogenic neutrinos, cosmic rays, and gamma-rays, and the coordinated multimessenger and multiwavelength follow-ups. Identifying and characterizing multimessenger sources enables science throughout and beyond astrophysics. Success in the multimessenger era requires: (i) sensitive coverage of the non-electromagnetic messengers, (ii) full coverage of the electromagnetic spectrum, with either fast-response observations or broad and deep high-cadence surveys, and (iii) improved collaboration, communication, and notification platforms., Comment: Astro2020 White Paper for the 8th Thematic Area of Multimessenger Astronomy and Astrophysics
Published: 2019

44. A Summary of Multimessenger Science with Neutron Star Mergers

Author: Burns, Eric, Tohuvavohu, Aaron, Buckley, James, Canton, Tito Dal, Cenko, S. Brad, Conklin, John W., D'Ammando, Filippo, Eichler, David, Fryer, Chris, van der Horst, Alexander J., Kamionkowski, Marc, Kasliwal, Mansi, Margutti, Raffaella, Metzger, Brian D., Murase, Kohta, Nissanke, Samaya, Radice, David, Tomsick, John, Wilson-Hodge, Colleen A., and Zhang, Bing
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Neutron star mergers, referring to both binary neutron star and neutron star black hole mergers, are the canonical multimessenger events. They have been detected across the electromagnetic spectrum, have recently been detected in gravitational waves, and are likely to produce neutrinos over several decades in energy. The non-thermal prompt and afterglow emission of short gamma-ray bursts and the quasi-thermal emission from the radioactively powered kilonovae provide distinct insights into the physics of neutron star mergers. When combined with direct information on coalescence from gravitational waves and neutrinos these sources may become the best understood astrophysical transients. Multimessenger observations of these cataclysmic events will determine sources of gravitational waves and astrophysical neutrinos, enable precision cosmology, and unique tests of fundamental physics, the origin of heavy elements, the behavior of relativistic jets, and the equation of state of supranuclear matter. In this white paper we present a summary of the science discoveries possible with multimessenger observations of neutron star mergers and provide recommendations to enable them in the new era of time-domain, multimessenger astronomy., Comment: Astro2020 White Paper
Published: 2019

45. STROBE-X: X-ray Timing and Spectroscopy on Dynamical Timescales from Microseconds to Years

Author: Ray, Paul S., Arzoumanian, Zaven, Ballantyne, David, Bozzo, Enrico, Brandt, Soren, Brenneman, Laura, Chakrabarty, Deepto, Christophersen, Marc, DeRosa, Alessandra, Feroci, Marco, Gendreau, Keith, Goldstein, Adam, Hartmann, Dieter, Hernanz, Margarita, Jenke, Peter, Kara, Erin, Maccarone, Tom, McDonald, Michael, Nowak, Michael, Phlips, Bernard, Remillard, Ron, Stevens, Abigail, Tomsick, John, Watts, Anna, Wilson-Hodge, Colleen, Wood, Kent, Zane, Silvia, Ajello, Marco, Alston, Will, Altamirano, Diego, Antoniou, Vallia, Arur, Kavitha, Ashton, Dominic, Auchettl, Katie, Ayres, Tom, Bachetti, Matteo, Balokovic, Mislav, Baring, Matthew, Baykal, Altan, Begelman, Mitch, Bhat, Narayana, Bogdanov, Slavko, Briggs, Michael, Bulbul, Esra, Bult, Petrus, Burns, Eric, Cackett, Ed, Campana, Riccardo, Caspi, Amir, Cavecchi, Yuri, Chenevez, Jerome, Cherry, Mike, Corbet, Robin, Corcoran, Michael, Corsi, Alessandra, Degenaar, Nathalie, Drake, Jeremy, Eikenberry, Steve, Enoto, Teruaki, Fragile, Chris, Fuerst, Felix, Gandhi, Poshak, Garcia, Javier, Gonzalez, Anthony, Grefenstette, Brian, Grinberg, Victoria, Grossan, Bruce, Guillot, Sebastien, Guver, Tolga, Haggard, Daryl, Heinke, Craig, Heinz, Sebastian, Hemphill, Paul, Homan, Jeroen, Hui, Michelle, Huppenkothen, Daniela, Ingram, Adam, Irwin, Jimmy, Jaisawal, Gaurava, Jaodand, Amruta, Kalemci, Emrah, Kaplan, David, Keek, Laurens, Kennea, Jamie, Kerr, Matthew, van der Klis, Michiel, Kocevski, Daniel, Koss, Mike, Kowalski, Adam, Lai, Dong, Lamb, Fred, Laycock, Silas, Lazio, Joseph, Lazzati, Davide, Longcope, Dana, Loewenstein, Michael, Maitra, Dipankair, Majid, Walid, Maksym, W. Peter, Malacaria, Christian, Margutti, Raffaella, Martindale, Adrian, McHardy, Ian, Meyer, Manuel, Middleton, Matt, Miller, Jon, Miller, Cole, Motta, Sara, Neilsen, Joey, Nelson, Tommy, Noble, Scott, O'Brien, Paul, Osborne, Julian, Osten, Rachel, Ozel, Feryal, Palliyaguru, Nipuni, Pasham, Dheeraj, Patruno, Alessandro, Pelassa, Vero, Petropoulou, Maria, Pilia, Maura, Pohl, Martin, Pooley, David, Prescod-Weinstein, Chanda, Psaltis, Dimitrios, Raaijmakers, Geert, Reynolds, Chris, Riley, Thomas E., Salvesen, Greg, Santangelo, Andrea, Scaringi, Simone, Schanne, Stephane, Schnittman, Jeremy, Smith, David, Smith, Krista Lynne, Snios, Bradford, Steiner, Andrew, Steiner, Jack, Stella, Luigi, Strohmayer, Tod, Sun, Ming, Tauris, Thomas, Taylor, Corbin, Tohuvavohu, Aaron, Vacchi, Andrea, Vasilopoulos, Georgios, Veledina, Alexandra, Walsh, Jonelle, Weinberg, Nevin, Wilkins, Dan, Willingale, Richard, Wilms, Joern, Winter, Lisa, Wolff, Michael, Zand, Jean in 't, Zezas, Andreas, Zhang, Bing, and Zoghbi, Abdu
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X), a probe-class mission concept selected for study by NASA. It combines huge collecting area, high throughput, broad energy coverage, and excellent spectral and temporal resolution in a single facility. STROBE-X offers an enormous increase in sensitivity for X-ray spectral timing, extending these techniques to extragalactic targets for the first time. It is also an agile mission capable of rapid response to transient events, making it an essential X-ray partner facility in the era of time-domain, multi-wavelength, and multi-messenger astronomy. Optimized for study of the most extreme conditions found in the Universe, its key science objectives include: (1) Robustly measuring mass and spin and mapping inner accretion flows across the black hole mass spectrum, from compact stars to intermediate-mass objects to active galactic nuclei. (2) Mapping out the full mass-radius relation of neutron stars using an ensemble of nearly two dozen rotation-powered pulsars and accreting neutron stars, and hence measuring the equation of state for ultradense matter over a much wider range of densities than explored by NICER. (3) Identifying and studying X-ray counterparts (in the post-Swift era) for multiwavelength and multi-messenger transients in the dynamic sky through cross-correlation with gravitational wave interferometers, neutrino observatories, and high-cadence time-domain surveys in other electromagnetic bands. (4) Continuously surveying the dynamic X-ray sky with a large duty cycle and high time resolution to characterize the behavior of X-ray sources over an unprecedentedly vast range of time scales. STROBE-X's formidable capabilities will also enable a broad portfolio of additional science., Comment: 50 pages, Probe class mission concept study report submitted to NASA for Astro2020 Decadal Survey
Published: 2019

46. GRB171205A/SN2017iuk: A local low-luminosity gamma-ray burst

Author: D'Elia, V., Campana, S., D'Aì, A., De Pasquale, M., Emery, S. W. K., Frederiks, D. D., Lien, A., Melandri, A., Page, K. L., Starling, R. L. C., Burrows, D. N., Breeveld, A. A., Oates, S. R., O'Brien, P. T., Osborne, J. P., Siegel, M. H., Tagliaferri, G., Brown, P. J., Cenko, S. B., Svinkin, D. S., Tohuvavohu, A., and Tsvetkova, A. E.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Gamma-ray bursts (GRBs) occurring in the local Universe constitute an interesting sub-class of the GRB family, since their luminosity is on average lower than that of their cosmological analogs. We aim to contribute to the study of local bursts by reporting the case of GRB 171205A. This source was discovered by Swift Burst Alert Telescope (BAT) on 2017, December 5 and soon associated with a low redshift host galaxy (z=0.037), and an emerging SN (SN 2017iuk). We analyzed the full Swift, dataset, comprising the UV-Optical Telescope (UVOT), X-ray Telescope (XRT) and BAT data. In addition, we employed the Konus-Wind high energy data as a valuable extension at gamma-ray energies. The photometric SN signature is clearly visible in the UVOT u, b and v filters. The maximum emission is reached at ~ 13 (rest frame) days, and the whole bump resembles that of SN 2006aj, but lower in magnitude and with a shift in time of +2 d. A prebump in the v-band is also clearly visible, and this is the first time that such a feature is not observed achromatically in GRB-SNe. Its physical origin cannot be easily explained. The X-ray spectrum shows an intrinsic Hydrogen column density N_H,int = 7.4(+4.1 -3.6) X 10^20 / cm^2$, which is at the low end of the N_H,int, even considering just low redshift GRBs. The spectrum also features a thermal component, which is quite common in GRBs associated with SNe, but whose origin is still a matter of debate. Finally, the isotropic energy in the gamma-ray band, E_iso = 2.18(+0.63 -0.50) X 10^49 erg, is lower than those of cosmological GRBs. Combining this value with the peak energy in the same band, E_p=125(+141 -37) keV, implies that GRB 171205A is an outlier of the Amati relation, as are some other low redshift GRBs, and its emission mechanism should be different from that of canonical, farther away GRBs., Comment: 13 pages, 10 figures, A&A in press
Published: 2018
Full Text: View/download PDF

47. Swift spectra of AT2018cow: A White Dwarf Tidal Disruption Event?

Author: Kuin, N. Paul M., Wu, Kinwah, Oates, Samantha, Lien, Amy, Emery, Sam, Kennea, Jamie, de Pasquale, Massimiliano, Han, Qin, Brown, Peter J., Tohuvavohu, Aaron, Breeveld, Alice, Burrows, David N., Cenko, S. Bradley, Campana, Sergio, Levan, Andrew, Markwardt, Craig, Osborne, Julian P., Page, Mat J., Page, Kim L., Sbarufatti, Boris, Siegel, Michael, and Troja, Eleonora
Subjects: Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics
Abstract: The bright transient AT2018cow has been unlike any other known type of transient. Its high brightness, rapid rise and decay and initially nearly featureless spectrum are unprecedented and difficult to explain using models for similar burst sources. We present evidence for faint gamma-ray emission continuing for at least 8 days, and featureless spectra in the ultraviolet bands -- both unusual for eruptive sources. The X-ray variability of the source has a burst-like character. The UV-optical spectrum does not show any CNO line but is well described by a blackbody. We demonstrate that a model invoking the tidal disruption of a 0.1 - 0.4 Msun Helium White Dwarf (WD) by a 100,000 to one million solar mass Black Hole (BH) located in the outskirts of galaxy Z~137-068 could provide an explanation for most of the characteristics shown in the multi-wavelength observations. A blackbody-like emission is emitted from an opaque photosphere, formed by the debris of the WD disruption. Broad features showing up in the optical/infrared spectra in the early stage are probably velocity broadened lines produced in a transient high-velocity outward moving cocoon. The asymmetric optical/infrared lines that appeared at a later stage are emission from an atmospheric layer when it detached from thermal equilibrium with the photosphere, which undergoes more rapid cooling. The photosphere shrinks when its temperature drops, and the subsequent infall of the atmosphere produced asymmetric line profiles. Additionally, a non-thermal jet might be present, emitting X-rays in the 10-150 keV band.
Published: 2018
Full Text: View/download PDF

48. A Multimessenger Picture of the Flaring Blazar TXS 0506+056: implications for High-Energy Neutrino Emission and Cosmic Ray Acceleration

Author: Keivani, A., Murase, K., Petropoulou, M., Fox, D. B., Cenko, S. B., Chaty, S., Coleiro, A., DeLaunay, J. J., Dimitrakoudis, S., Evans, P. A., Kennea, J. A., Marshall, F. E., Mastichiadis, A., Osborne, J. P., Santander, M., Tohuvavohu, A., and Turley, C. F.
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Detection of the IceCube-170922A neutrino coincident with the flaring blazar TXS 0506+056, the first and only 3-sigma high-energy neutrino source association to date, offers a potential breakthrough in our understanding of high-energy cosmic particles and blazar physics. We present a comprehensive analysis of TXS 0506+056 during its flaring state, using newly collected Swift, NuSTAR, and X-shooter data with Fermi observations and numerical models to constrain the blazar's particle acceleration processes and multimessenger (electromagnetic and high-energy neutrino) emissions. Accounting properly for electromagnetic cascades in the emission region, we find a physically-consistent picture only within a hybrid leptonic scenario, with gamma-rays produced by external inverse-Compton processes and high-energy neutrinos via a radiatively-subdominant hadronic component. We derive robust constraints on the blazar's neutrino and cosmic-ray emissions and demonstrate that, because of cascade effects, the 0.1-100keV emissions of TXS 0506+056 serve as a better probe of its hadronic acceleration and high-energy neutrino production processes than its GeV-TeV emissions. If the IceCube neutrino association holds, physical conditions in the TXS 0506+056 jet must be close to optimal for high-energy neutrino production, and are not favorable for ultra-high-energy cosmic-ray acceleration. Alternatively, the challenges we identify in generating a significant rate of IceCube neutrino detections from TXS 0506+056 may disfavor single-zone models. In concert with continued operations of the high-energy neutrino observatories, we advocate regular X-ray monitoring of TXS 0506+056 and other blazars in order to test single-zone blazar emission models, clarify the nature and extent of their hadronic acceleration processes, and carry out the most sensitive possible search for additional multimessenger sources., Comment: 23 pages, 6 figures, 9 tables, submitted to ApJ
Published: 2018
Full Text: View/download PDF

49. A Joint Fermi-GBM and Swift-BAT Analysis of Gravitational-wave Candidates from the Third Gravitational-wave Observing Run

Author: Fletcher, C, Wood, J, Hamburg, R, Veres, P, Hui, C, Bissaldi, E, Briggs, M, Burns, E, Cleveland, W, Giles, M, Goldstein, A, Hristov, B, Kocevski, D, Lesage, S, Mailyan, B, Malacaria, C, Poolakkil, S, von Kienlin, A, Wilson-Hodge, C, Crnogorcevic, M, Delaunay, J, Tohuvavohu, A, Caputo, R, Cenko, S, Laha, S, Parsotan, T, Abbott, R, Abe, H, Acernese, F, Ackley, K, Adhikari, N, Adhikari, R, Adkins, V, Adya, V, Affeldt, C, Agarwal, D, Agathos, M, Agatsuma, K, Aggarwal, N, Aguiar, O, Aiello, L, Ain, A, Ajith, P, Akutsu, T, Albanesi, S, Alfaidi, R, Allocca, A, Altin, P, Amato, A, Anand, C, Anand, S, Ananyeva, A, Anderson, S, Anderson, W, Ando, M, Andrade, T, Andres, N, Andres-Carcasona, M, Andric, T, Angelova, S, Ansoldi, S, Antelis, J, Antier, S, Apostolatos, T, Appavuravther, E, Appert, S, Apple, S, Arai, K, Araya, A, Araya, M, Areeda, J, Arene, M, Aritomi, N, Arnaud, N, Arogeti, M, Aronson, S, Arun, K, Asada, H, Asali, Y, Ashton, G, Aso, Y, Assiduo, M, Assis de Souza Melo, S, Aston, S, Astone, P, Aubin, F, Aultoneal, K, Austin, C, Babak, S, Badaracco, F, Bader, M, Badger, C, Bae, S, Bae, Y, Baer, A, Bagnasco, S, Bai, Y, Baird, J, Bajpai, R, Baka, T, Ball, M, Ballardin, G, Ballmer, S, Balsamo, A, Baltus, G, Banagiri, S, Banerjee, B, Bankar, D, Barayoga, J, Barbieri, C, Barish, B, Barker, D, Barneo, P, Barone, F, Barr, B, Barsotti, L, Barsuglia, M, Barta, D, Bartlett, J, Barton, M, Bartos, I, Basak, S, Bassiri, R, Basti, A, Bawaj, M, Bayley, J, Bazzan, M, Becher, B, Becsy, B, Bedakihale, V, Beirnaert, F, Bejger, M, Belahcene, I, Benedetto, V, Beniwal, D, Benjamin, M, Bennett, T, Bentley, J, Benyaala, M, Bera, S, Berbel, M, Bergamin, F, Berger, B, Bernuzzi, S, Berry, C, Bersanetti, D, Bertolini, A, Betzwieser, J, Beveridge, D, Bhandare, R, Bhandari, A, Bhardwaj, U, Bhatt, R, Bhattacharjee, D, Bhaumik, S, Bianchi, A, Bilenko, I, Billingsley, G, Bini, S, Birney, R, Birnholtz, O, Biscans, S, Bischi, M, Biscoveanu, S, Bisht, A, Biswas, B, Bitossi, M, Bizouard, M, Blackburn, J, Blair, C, Blair, D, Blair, R, Bobba, F, Bode, N, Boer, M, Bogaert, G, Boldrini, M, Bolingbroke, G, Bonavena, L, Bondu, F, Bonilla, E, Bonnand, R, Booker, P, Boom, B, Bork, R, Boschi, V, Bose, N, Bose, S, Bossilkov, V, Boudart, V, Bouffanais, Y, Bozzi, A, Bradaschia, C, Brady, P, Bramley, A, Branch, A, Branchesi, M, Brau, J, Breschi, M, Briant, T, Briggs, J, Brillet, A, Brinkmann, M, Brockill, P, Brooks, A, Brooks, J, Brown, D, Brunett, S, Bruno, G, Bruntz, R, Bryant, J, Bucci, F, Bulik, T, Bulten, H, Buonanno, A, Burtnyk, K, Buscicchio, R, Buskulic, D, Buy, C, Byer, R, Cabourn Davies, G, Cabras, G, Cabrita, R, Cadonati, L, Caesar, M, Cagnoli, G, Cahillane, C, Calderon Bustillo, J, Callaghan, J, Callister, T, Calloni, E, Cameron, J, Camp, J, Canepa, M, Canevarolo, S, Cannavacciuolo, M, Cannon, K, Cao, H, Cao, Z, Capocasa, E, Capote, E, Carapella, G, Carbognani, F, Carlassara, M, Carlin, J, Carney, M, Carpinelli, M, Carrillo, G, Carullo, G, Carver, T, Casanueva Diaz, J, Casentini, C, Castaldi, G, Caudill, S, Cavaglia, M, Cavalier, F, Cavalieri, R, Cella, G, Cerda-Duran, P, Cesarini, E, Chaibi, W, Chalathadka Subrahmanya, S, Champion, E, Chan, C, Chan, K, Chan, M, Chandra, K, Chang, I, Chanial, P, Chao, S, Chapman-Bird, C, Charlton, P, Chase, E, Chassande-Mottin, E, Chatterjee, C, Chatterjee, D, Chaturvedi, M, Chaty, S, Chen, C, Chen, D, Chen, H, Chen, J, Chen, K, Chen, X, Chen, Y, Chen, Z, Cheng, H, Cheong, C, Cheung, H, Chia, H, Chiadini, F, Chiang, C, Chiarini, G, Chierici, R, Chincarini, A, Chiofalo, M, Chiummo, A, Choudhary, R, Choudhary, S, Christensen, N, Chu, Q, Chu, Y, Chua, S, Chung, K, Ciani, G, Ciecielag, P, Cieslar, M, Cifaldi, M, Ciobanu, A, Ciolfi, R, Cipriano, F, Clara, F, Clark, J, Clearwater, P, Clesse, S, Cleva, F, Coccia, E, Codazzo, E, Cohadon, P, Cohen, D, Colleoni, M, Collette, C, Colombo, A, Colpi, M, Compton, C, Constancio, M, Conti, L, Cooper, S, Corban, P, Corbitt, T, Cordero-Carrion, I, Corezzi, S, Corley, K, Cornish, N, Corre, D, Corsi, A, Cortese, S, Costa, C, Cotesta, R, Cottingham, R, Coughlin, M, Coulon, J, Countryman, S, Cousins, B, Couvares, P, Coward, D, Cowart, M, Coyne, D, Coyne, R, Creighton, J, Creighton, T, Criswell, A, Croquette, M, Crowder, S, Cudell, J, Cullen, T, Cumming, A, Cummings, R, Cunningham, L, Cuoco, E, Curylo, M, Dabadie, P, Dal Canton, T, Dall'Osso, S, Dalya, G, Dana, A, D'Angelo, B, Danilishin, S, D'Antonio, S, Danzmann, K, Darsow-Fromm, C, Dasgupta, A, Datrier, L, Datta, S, Dattilo, V, Dave, I, Davier, M, Davis, D, Davis, M, Daw, E, Dean, R, Debra, D, Deenadayalan, M, Degallaix, J, De Laurentis, M, Deleglise, S, Del Favero, V, De Lillo, F, De Lillo, N, Dell'Aquila, D, Del Pozzo, W, Demarchi, L, De Matteis, F, D'Emilio, V, Demos, N, Dent, T, Depasse, A, De Pietri, R, De Rosa, R, De Rossi, C, Desalvo, R, De Simone, R, Dhurandhar, S, Diaz, M, Didio, N, Dietrich, T, Di Fiore, L, Di Fronzo, C, Di Giorgio, C, Di Giovanni, F, Di Giovanni, M, Di Girolamo, T, Di Lieto, A, Di Michele, A, Ding, B, Di Pace, S, Di Palma, I, Di Renzo, F, Divakarla, A, Dmitriev, A, Doctor, Z, Donahue, L, D'Onofrio, L, Donovan, F, Dooley, K, Doravari, S, Drago, M, Driggers, J, Drori, Y, Ducoin, J, Dupej, P, Dupletsa, U, Durante, O, D'Urso, D, Duverne, P, Dwyer, S, Eassa, C, Easter, P, Ebersold, M, Eckhardt, T, Eddolls, G, Edelman, B, Edo, T, Edy, O, Effler, A, Eguchi, S, Eichholz, J, Eikenberry, S, Eisenmann, M, Eisenstein, R, Ejlli, A, Engelby, E, Enomoto, Y, Errico, L, Essick, R, Estelles, H, Estevez, D, Etienne, Z, Etzel, T, Evans, M, Evans, T, Evstafyeva, T, Ewing, B, Fabrizi, F, Faedi, F, Fafone, V, Fair, H, Fairhurst, S, Fan, P, Farah, A, Farinon, S, Farr, B, Farr, W, Fauchon-Jones, E, Favaro, G, Favata, M, Fays, M, Fazio, M, Feicht, J, Fejer, M, Fenyvesi, E, Ferguson, D, Fernandez-Galiana, A, Ferrante, I, Ferreira, T, Fidecaro, F, Figura, P, Fiori, A, Fiori, I, Fishbach, M, Fisher, R, Fittipaldi, R, Fiumara, V, Flaminio, R, Floden, E, Fong, H, Font, J, Fornal, B, Forsyth, P, Franke, A, Frasca, S, Frasconi, F, Freed, J, Frei, Z, Freise, A, Freitas, O, Frey, R, Fritschel, P, Frolov, V, Fronze, G, Fujii, Y, Fujikawa, Y, Fujimoto, Y, Fulda, P, Fyffe, M, Gabbard, H, Gabella, W, Gadre, B, Gair, J, Gais, J, Galaudage, S, Gamba, R, Ganapathy, D, Ganguly, A, Gao, D, Gaonkar, S, Garaventa, B, Garcia Nunez, C, Garcia-Quiros, C, Garufi, F, Gateley, B, Gayathri, V, Ge, G, Gemme, G, Gennai, A, George, J, Gerberding, O, Gergely, L, Gewecke, P, Ghonge, S, Ghosh, A, Ghosh, S, Ghosh, T, Giacomazzo, B, Giacoppo, L, Giaime, J, Giardina, K, Gibson, D, Gier, C, Giesler, M, Giri, P, Gissi, F, Gkaitatzis, S, Glanzer, J, Gleckl, A, Godwin, P, Goetz, E, Goetz, R, Gohlke, N, Golomb, J, Goncharov, B, Gonzalez, G, Gosselin, M, Gouaty, R, Gould, D, Goyal, S, Grace, B, Grado, A, Graham, V, Granata, M, Granata, V, Grant, A, Gras, S, Grassia, P, Gray, C, Gray, R, Greco, G, Green, A, Green, R, Gretarsson, A, Gretarsson, E, Griffith, D, Griffiths, W, Griggs, H, Grignani, G, Grimaldi, A, Grimes, E, Grimm, S, Grote, H, Grunewald, S, Gruning, P, Gruson, A, Guerra, D, Guidi, G, Guimaraes, A, Guixe, G, Gulati, H, Gunny, A, Guo, H, Guo, Y, Gupta, A, Gupta, I, Gupta, P, Gupta, S, Gustafson, R, Guzman, F, Ha, S, Hadiputrawan, I, Haegel, L, Haino, S, Halim, O, Hall, E, Hamilton, E, Hammond, G, Han, W, Haney, M, Hanks, J, Hanna, C, Hannam, M, Hannuksela, O, Hansen, H, Hansen, T, Hanson, J, Harder, T, Haris, K, Harms, J, Harry, G, Harry, I, Hartwig, D, Hasegawa, K, Haskell, B, Haster, C, Hathaway, J, Hattori, K, Haughian, K, Hayakawa, H, Hayama, K, Hayes, F, Healy, J, Heidmann, A, Heidt, A, Heintze, M, Heinze, J, Heinzel, J, Heitmann, H, Hellman, F, Hello, P, Helmling-Cornell, A, Hemming, G, Hendry, M, Heng, I, Hennes, E, Hennig, J, Hennig, M, Henshaw, C, Hernandez, A, Hernandez Vivanco, F, Heurs, M, Hewitt, A, Higginbotham, S, Hild, S, Hill, P, Himemoto, Y, Hines, A, Hirata, N, Hirose, C, Ho, T, Hochheim, S, Hofman, D, Hohmann, J, Holcomb, D, Holland, N, Hollows, I, Holmes, Z, Holt, K, Holz, D, Hong, Q, Hough, J, Hourihane, S, Howell, E, Hoy, C, Hoyland, D, Hreibi, A, Hsieh, B, Hsieh, H, Hsiung, C, Hsu, Y, Huang, H, Huang, P, Huang, Y, Hubner, M, Huddart, A, Hughey, B, Hui, D, Hui, V, Husa, S, Huttner, S, Huxford, R, Huynh-Dinh, T, Ide, S, Idzkowski, B, Iess, A, Inayoshi, K, Inoue, Y, Iosif, P, Isi, M, Isleif, K, Ito, K, Itoh, Y, Iyer, B, Jaberianhamedan, V, Jacqmin, T, Jacquet, P, Jadhav, S, Jain, T, James, A, Jan, A, Jani, K, Janquart, J, Janssens, K, Janthalur, N, Jaranowski, P, Jariwala, D, Jaume, R, Jenkins, A, Jenner, K, Jeon, C, Jia, W, Jiang, J, Jin, H, Johns, G, Johnston, R, Jones, A, Jones, D, Jones, P, Jones, R, Joshi, P, Ju, L, Jue, A, Jung, P, Jung, K, Junker, J, Juste, V, Kaihotsu, K, Kajita, T, Kakizaki, M, Kalaghatgi, C, Kalogera, V, Kamai, B, Kamiizumi, M, Kanda, N, Kandhasamy, S, Kang, G, Kanner, J, Kao, Y, Kapadia, S, Kapasi, D, Karathanasis, C, Karki, S, Kashyap, R, Kasprzack, M, Kastaun, W, Kato, T, Katsanevas, S, Katsavounidis, E, Katzman, W, Kaur, T, Kawabe, K, Kawaguchi, K, Kefelian, F, Keitel, D, Key, J, Khadka, S, Khalili, F, Khan, S, Khanam, T, Khazanov, E, Khetan, N, Khursheed, M, Kijbunchoo, N, Kim, A, Kim, C, Kim, J, Kim, K, Kim, W, Kim, Y, Kimball, C, Kimura, N, Kinley-Hanlon, M, Kirchhoff, R, Kissel, J, Klimenko, S, Klinger, T, Knee, A, Knowles, T, Knust, N, Knyazev, E, Kobayashi, Y, Koch, P, Koekoek, G, Kohri, K, Kokeyama, K, Koley, S, Kolitsidou, P, Kolstein, M, Komori, K, Kondrashov, V, Kong, A, Kontos, A, Koper, N, Korobko, M, Kovalam, M, Koyama, N, Kozak, D, Kozakai, C, Kringel, V, Krishnendu, N, Krolak, A, Kuehn, G, Kuei, F, Kuijer, P, Kulkarni, S, Kumar, A, Kumar, P, Kumar, R, Kume, J, Kuns, K, Kuromiya, Y, Kuroyanagi, S, Kwak, K, Lacaille, G, Lagabbe, P, Laghi, D, Lalande, E, Lalleman, M, Lam, T, Lamberts, A, Landry, M, Lane, B, Lang, R, Lange, J, Lantz, B, La Rosa, I, Lartaux-Vollard, A, Lasky, P, Laxen, M, Lazzarini, A, Lazzaro, C, Leaci, P, Leavey, S, Lebohec, S, Lecoeuche, Y, Lee, E, Lee, H, Lee, K, Lee, R, Legred, I, Lehmann, J, Lemaitre, A, Lenti, M, Leonardi, M, Leonova, E, Leroy, N, Letendre, N, Levesque, C, Levin, Y, Leviton, J, Leyde, K, Li, A, Li, B, Li, J, Li, K, Li, P, Li, T, Li, X, Lin, C, Lin, E, Lin, F, Lin, H, Lin, L, Linde, F, Linker, S, Linley, J, Littenberg, T, Liu, G, Liu, J, Liu, K, Liu, X, Llamas, F, Lo, R, Lo, T, London, L, Longo, A, Lopez, D, Lopez Portilla, M, Lorenzini, M, Loriette, V, Lormand, M, Losurdo, G, Lott, T, Lough, J, Lousto, C, Lovelace, G, Lucaccioni, J, Luck, H, Lumaca, D, Lundgren, A, Luo, L, Lynam, J, Ma'Arif, M, Macas, R, Machtinger, J, Macinnis, M, Macleod, D, Macmillan, I, Macquet, A, Magana Hernandez, I, Magazzu, C, Magee, R, Maggiore, R, Magnozzi, M, Mahesh, S, Majorana, E, Maksimovic, I, Maliakal, S, Malik, A, Man, N, Mandic, V, Mangano, V, Mansell, G, Manske, M, Mantovani, M, Mapelli, M, Marchesoni, F, Marin Pina, D, Marion, F, Mark, Z, Marka, S, Marka, Z, Markakis, C, Markosyan, A, Markowitz, A, Maros, E, Marquina, A, Marsat, S, Martelli, F, Martin, I, Martin, R, Martinez, M, Martinez, V, Martinovic, K, Martynov, D, Marx, E, Masalehdan, H, Mason, K, Massera, E, Masserot, A, Masso-Reid, M, Mastrogiovanni, S, Matas, A, Mateu-Lucena, M, Matichard, F, Matiushechkina, M, Mavalvala, N, Mccann, J, Mccarthy, R, Mcclelland, D, Mcclincy, P, Mccormick, S, Mcculler, L, Mcghee, G, Mcguire, S, Mcisaac, C, Mciver, J, Mcrae, T, Mcwilliams, S, Meacher, D, Mehmet, M, Mehta, A, Meijer, Q, Melatos, A, Melchor, D, Mendell, G, Menendez-Vazquez, A, Menoni, C, Mercer, R, Mereni, L, Merfeld, K, Merilh, E, Merritt, J, Merzougui, M, Meshkov, S, Messenger, C, Messick, C, Meyers, P, Meylahn, F, Mhaske, A, Miani, A, Miao, H, Michaloliakos, I, Michel, C, Michimura, Y, Middleton, H, Mihaylov, D, Milano, L, Miller, A, Miller, B, Millhouse, M, Mills, J, Milotti, E, Minenkov, Y, Mio, N, Mir, L, Miravet-Tenes, M, Mishkin, A, Mishra, C, Mishra, T, Mistry, T, Mitra, S, Mitrofanov, V, Mitselmakher, G, Mittleman, R, Miyakawa, O, Miyo, K, Miyoki, S, Mo, G, Modafferi, L, Moguel, E, Mogushi, K, Mohapatra, S, Mohite, S, Molina, I, Molina-Ruiz, M, Mondin, M, Montani, M, Moore, C, Moragues, J, Moraru, D, Morawski, F, More, A, Moreno, C, Moreno, G, Mori, Y, Morisaki, S, Morisue, N, Moriwaki, Y, Mours, B, Mow-Lowry, C, Mozzon, S, Muciaccia, F, Mukherjee, A, Mukherjee, D, Mukherjee, S, Mukund, N, Mullavey, A, Munch, J, Muniz, E, Murray, P, Musenich, R, Muusse, S, Nadji, S, Nagano, K, Nagar, A, Nakamura, K, Nakano, H, Nakano, M, Nakayama, Y, Napolano, V, Nardecchia, I, Narola, H, Naticchioni, L, Nayak, B, Nayak, R, Neil, B, Neilson, J, Nelson, A, Nelson, T, Nery, M, Neubauer, P, Neunzert, A, Ng, K, Ng, S, Nguyen, C, Nguyen, P, Nguyen, T, Nguyen Quynh, L, Ni, J, Ni, W, Nichols, S, Nishimoto, T, Nishizawa, A, Nissanke, S, Nitoglia, E, Nocera, F, Norman, M, North, C, Nozaki, S, Nurbek, G, Nuttall, L, Obayashi, Y, Oberling, J, O'Brien, B, O'Dell, J, Oelker, E, Ogaki, W, Oganesyan, G, Oh, J, Oh, K, Oh, S, Ohashi, M, Ohashi, T, Ohkawa, M, Ohme, F, Ohta, H, Okada, M, Okutani, Y, Olivetto, C, Oohara, K, Oram, R, O'Reilly, B, Ormiston, R, Ormsby, N, O'Shaughnessy, R, O'Shea, E, Oshino, S, Ossokine, S, Osthelder, C, Otabe, S, Ottaway, D, Overmier, H, Pace, A, Pagano, G, Pagano, R, Page, M, Pagliaroli, G, Pai, A, Pai, S, Pal, S, Palamos, J, Palashov, O, Palomba, C, Pan, H, Pan, K, Panda, P, Pang, P, Pankow, C, Pannarale, F, Pant, B, Panther, F, Paoletti, F, Paoli, A, Paolone, A, Pappas, G, Parisi, A, Park, H, Park, J, Parker, W, Pascucci, D, Pasqualetti, A, Passaquieti, R, Passuello, D, Patel, M, Pathak, M, Patricelli, B, Patron, A, Paul, S, Payne, E, Pedraza, M, Pedurand, R, Pegoraro, M, Pele, A, Pena Arellano, F, Penano, S, Penn, S, Perego, A, Pereira, A, Pereira, T, Perez, C, Perigois, C, Perkins, C, Perreca, A, Perries, S, Pesios, D, Petermann, J, Petterson, D, Pfeiffer, H, Pham, H, Pham, K, Phukon, K, Phurailatpam, H, Piccinni, O, Pichot, M, Piendibene, M, Piergiovanni, F, Pierini, L, Pierro, V, Pillant, G, Pillas, M, Pilo, F, Pinard, L, Pineda-Bosque, C, Pinto, I, Pinto, M, Piotrzkowski, B, Piotrzkowski, K, Pirello, M, Pitkin, M, Placidi, A, Placidi, E, Planas, M, Plastino, W, Pluchar, C, Poggiani, R, Polini, E, Pong, D, Ponrathnam, S, Porter, E, Poulton, R, Poverman, A, Powell, J, Pracchia, M, Pradier, T, Prajapati, A, Prasai, K, Prasanna, R, Pratten, G, Principe, M, Prodi, G, Prokhorov, L, Prosposito, P, Prudenzi, L, Puecher, A, Punturo, M, Puosi, F, Puppo, P, Purrer, M, Qi, H, Quartey, N, Quetschke, V, Quinonez, P, Quitzow-James, R, Raab, F, Raaijmakers, G, Radkins, H, Radulesco, N, Raffai, P, Rail, S, Raja, S, Rajan, C, Ramirez, K, Ramirez, T, Ramos-Buades, A, Rana, J, Rapagnani, P, Ray, A, Raymond, V, Raza, N, Razzano, M, Read, J, Rees, L, Regimbau, T, Rei, L, Reid, S, Reitze, D, Relton, P, Renzini, A, Rettegno, P, Revenu, B, Reza, A, Rezac, M, Ricci, F, Richards, D, Richardson, J, Richardson, L, Riemenschneider, G, Riles, K, Rinaldi, S, Rink, K, Robertson, N, Robie, R, Robinet, F, Rocchi, A, Rodriguez, S, Rolland, L, Rollins, J, Romanelli, M, Romano, R, Romel, C, Romero, A, Romero-Shaw, I, Romie, J, Ronchini, S, Rosa, L, Rose, C, Rosinska, D, Ross, M, Rowan, S, Rowlinson, S, Roy, S, Rozza, D, Ruggi, P, Ruiz-Rocha, K, Ryan, K, Sachdev, S, Sadecki, T, Sadiq, J, Saha, S, Saito, Y, Sakai, K, Sakellariadou, M, Sakon, S, Salafia, O, Salces-Carcoba, F, Salconi, L, Saleem, M, Salemi, F, Samajdar, A, Sanchez, E, Sanchez, J, Sanchez, L, Sanchis-Gual, N, Sanders, J, Sanuy, A, Saravanan, T, Sarin, N, Sassolas, B, Satari, H, Sauter, O, Savage, R, Savant, V, Sawada, T, Sawant, H, Sayah, S, Schaetzl, D, Scheel, M, Scheuer, J, Schiworski, M, Schmidt, P, Schmidt, S, Schnabel, R, Schneewind, M, Schofield, R, Schonbeck, A, Schulte, B, Schutz, B, Schwartz, E, Scott, J, Scott, S, Seglar-Arroyo, M, Sekiguchi, Y, Sellers, D, Sengupta, A, Sentenac, D, Seo, E, Sequino, V, Sergeev, A, Setyawati, Y, Shaffer, T, Shahriar, M, Shaikh, M, Shams, B, Shao, L, Sharma, A, Sharma, P, Shawhan, P, Shcheblanov, N, Sheela, A, Shikano, Y, Shikauchi, M, Shimizu, H, Shimode, K, Shinkai, H, Shishido, T, Shoda, A, Shoemaker, D, Shyamsundar, S, Sieniawska, M, Sigg, D, Silenzi, L, Singer, L, Singh, D, Singh, M, Singh, N, Singha, A, Sintes, A, Sipala, V, Skliris, V, Slagmolen, B, Slaven-Blair, T, Smetana, J, Smith, J, Smith, L, Smith, R, Soldateschi, J, Somala, S, Somiya, K, Song, I, Soni, K, Soni, S, Sordini, V, Sorrentino, F, Sorrentino, N, Soulard, R, Souradeep, T, Sowell, E, Spagnuolo, V, Spencer, A, Spera, M, Spinicelli, P, Srivastava, A, Srivastava, V, Staats, K, Stachie, C, Stachurski, F, Steer, D, Steinlechner, J, Steinlechner, S, Stergioulas, N, Stops, D, Stover, M, Strain, K, Strang, L, Stratta, G, Strong, M, Strunk, A, Sturani, R, Stuver, A, Suchenek, M, Sudhagar, S, Sudhir, V, Sugimoto, R, Suh, H, Sullivan, A, Summerscales, T, Sun, L, Sunil, S, Sur, A, Suresh, J, Sutton, P, Suzuki, T, Swinkels, B, Szczepanczyk, M, Szewczyk, P, Tacca, M, Tagoshi, H, Tait, S, Takahashi, H, Takahashi, R, Takano, S, Takeda, H, Takeda, M, Talbot, C, Tanaka, K, Tanaka, T, Tanasijczuk, A, Tanioka, S, Tanner, D, Tao, D, Tao, L, Tapia, R, Tapia San Martin, E, Taranto, C, Taruya, A, Tasson, J, Tenorio, R, Terhune, J, Terkowski, L, Thirugnanasambandam, M, Thomas, M, Thomas, P, Thompson, E, Thompson, J, Thondapu, S, Thorne, K, Thrane, E, Tiwari, S, Tiwari, V, Toivonen, A, Tolley, A, Tomaru, T, Tomura, T, Tonelli, M, Tornasi, Z, Torres-Forne, A, Torrie, C, Tosta Melo, I, Toyra, D, Trapananti, A, Travasso, F, Traylor, G, Trevor, M, Tringali, M, Tripathee, A, Troiano, L, Trovato, A, Trozzo, L, Trudeau, R, Tsai, D, Tsang, K, Tsang, T, Tsao, J, Tse, M, Tso, R, Tsuchida, S, Tsukada, L, Tsuna, D, Tsutsui, T, Turbang, K, Turconi, M, Tuyenbayev, D, Ubhi, A, Uchiyama, T, Udall, R, Ueda, A, Uehara, T, Ueno, K, Ueshima, G, Unnikrishnan, C, Urban, A, Ushiba, T, Utina, A, Vajente, G, Vajpeyi, A, Valdes, G, Valentini, M, Valsan, V, van Bakel, N, van Beuzekom, M, van Dael, M, van den Brand, J, Van Den Broeck, C, Vander-Hyde, D, van Haevermaet, H, van Heijningen, J, van Putten, M, van Remortel, N, Vardaro, M, Vargas, A, Varma, V, Vasuth, M, Vecchio, A, Vedovato, G, Veitch, J, Veitch, P, Venneberg, J, Venugopalan, G, Verkindt, D, Verma, P, Verma, Y, Vermeulen, S, Veske, D, Vetrano, F, Vicere, A, Vidyant, S, Viets, A, Vijaykumar, A, Villa-Ortega, V, Vinet, J, Virtuoso, A, Vitale, S, Vocca, H, von Reis, E, von Wrangel, J, Vorvick, C, Vyatchanin, S, Wade, L, Wade, M, Wagner, K, Walet, R, Walker, M, Wallace, G, Wallace, L, Wang, J, Wang, W, Ward, R, Warner, J, Was, M, Washimi, T, Washington, N, Watchi, J, Weaver, B, Weaving, C, Webster, S, Weinert, M, Weinstein, A, Weiss, R, Weller, C, Weller, R, Wellmann, F, Wen, L, Wessels, P, Wette, K, Whelan, J, White, D, Whiting, B, Whittle, C, Wilken, D, Williams, D, Williams, M, Williamson, A, Willis, J, Willke, B, Wilson, D, Wipf, C, Wlodarczyk, T, Woan, G, Woehler, J, Wofford, J, Wong, D, Wong, I, Wright, M, Wu, C, Wu, D, Wu, H, Wysocki, D, Xiao, L, Yamada, T, Yamamoto, H, Yamamoto, K, Yamamoto, T, Yamashita, K, Yamazaki, R, Yang, F, Yang, K, Yang, L, Yang, Y, Yap, M, Yeeles, D, Yeh, S, Yelikar, A, Ying, M, Yokoyama, J, Yokozawa, T, Yoo, J, Yoshioka, T, Yu, H, Yuzurihara, H, Zadro¿ny, A, Zanolin, M, Zeidler, S, Zelenova, T, Zendri, J, Zevin, M, Zhan, M, Zhang, H, Zhang, J, Zhang, L, Zhang, R, Zhang, T, Zhang, Y, Zhao, C, Zhao, G, Zhao, Y, Zhou, R, Zhou, Z, Zhu, X, Zhu, Z, Zimmerman, A, Zucker, M, Zweizig, J, Fletcher C., Wood J., Hamburg R., Veres P., Hui C. M., Bissaldi E., Briggs M. S., Burns E., Cleveland W. H., Giles M. M., Goldstein A., Hristov B. A., Kocevski D., Lesage S., Mailyan B., Malacaria C., Poolakkil S., von Kienlin A., Wilson-Hodge C. A., Crnogorcevic M., DeLaunay J., Tohuvavohu A., Caputo R., Cenko S. B., Laha S., Parsotan T., Abbott R., Abe H., Acernese F., Ackley K., Adhikari N., Adhikari R. X., Adkins V. K., Adya V. B., Affeldt C., Agarwal D., Agathos M., Agatsuma K., Aggarwal N., Aguiar O. D., Aiello L., Ain A., Ajith P., Akutsu T., Albanesi S., Alfaidi R. A., Allocca A., Altin P. A., Amato A., Anand C., Anand S., Ananyeva A., Anderson S. B., Anderson W. G., Ando M., Andrade T., Andres N., Andres-Carcasona M., Andric T., Angelova S. V., Ansoldi S., Antelis J. M., Antier S., Apostolatos T., Appavuravther E. Z., Appert S., Apple S. K., Arai K., Araya A., Araya M. C., Areeda J. S., Arene M., Aritomi N., Arnaud N., Arogeti M., Aronson S. M., Arun K. G., Asada H., Asali Y., Ashton G., Aso Y., Assiduo M., Assis de Souza Melo S., Aston S. M., Astone P., Aubin F., Aultoneal K., Austin C., Babak S., Badaracco F., Bader M. K. M., Badger C., Bae S., Bae Y., Baer A. M., Bagnasco S., Bai Y., Baird J., Bajpai R., Baka T., Ball M., Ballardin G., Ballmer S. W., Balsamo A., Baltus G., Banagiri S., Banerjee B., Bankar D., Barayoga J. C., Barbieri C., Barish B. C., Barker D., Barneo P., Barone F., Barr B., Barsotti L., Barsuglia M., Barta D., Bartlett J., Barton M. A., Bartos I., Basak S., Bassiri R., Basti A., Bawaj M., Bayley J. C., Bazzan M., Becher B. R., Becsy B., Bedakihale V. M., Beirnaert F., Bejger M., Belahcene I., Benedetto V., Beniwal D., Benjamin M. G., Bennett T. F., Bentley J. D., BenYaala M., Bera S., Berbel M., Bergamin F., Berger B. K., Bernuzzi S., Berry C. P. L., Bersanetti D., Bertolini A., Betzwieser J., Beveridge D., Bhandare R., Bhandari A. V., Bhardwaj U., Bhatt R., Bhattacharjee D., Bhaumik S., Bianchi A., Bilenko I. A., Billingsley G., Bini S., Birney R., Birnholtz O., Biscans S., Bischi M., Biscoveanu S., Bisht A., Biswas B., Bitossi M., Bizouard M. -A., Blackburn J. K., Blair C. D., Blair D. G., Blair R. M., Bobba F., Bode N., Boer M., Bogaert G., Boldrini M., Bolingbroke G. N., Bonavena L. D., Bondu F., Bonilla E., Bonnand R., Booker P., Boom B. A., Bork R., Boschi V., Bose N., Bose S., Bossilkov V., Boudart V., Bouffanais Y., Bozzi A., Bradaschia C., Brady P. R., Bramley A., Branch A., Branchesi M., Brau J. E., Breschi M., Briant T., Briggs J. H., Brillet A., Brinkmann M., Brockill P., Brooks A. F., Brooks J., Brown D. D., Brunett S., Bruno G., Bruntz R., Bryant J., Bucci F., Bulik T., Bulten H. J., Buonanno A., Burtnyk K., Buscicchio R., Buskulic D., Buy C., Byer R. L., Cabourn Davies G. S., Cabras G., Cabrita R., Cadonati L., Caesar M., Cagnoli G., Cahillane C., Calderon Bustillo J., Callaghan J. D., Callister T. A., Calloni E., Cameron J., Camp J. B., Canepa M., Canevarolo S., Cannavacciuolo M., Cannon K. C., Cao H., Cao Z., Capocasa E., Capote E., Carapella G., Carbognani F., Carlassara M., Carlin J. B., Carney M. F., Carpinelli M., Carrillo G., Carullo G., Carver T. L., Casanueva Diaz J., Casentini C., Castaldi G., Caudill S., Cavaglia M., Cavalier F., Cavalieri R., Cella G., Cerda-Duran P., Cesarini E., Chaibi W., Chalathadka Subrahmanya S., Champion E., Chan C. -H., Chan C., Chan C. L., Chan K., Chan M., Chandra K., Chang I. P., Chanial P., Chao S., Chapman-Bird C., Charlton P., Chase E. A., Chassande-Mottin E., Chatterjee C., Chatterjee D., Chaturvedi M., Chaty S., Chen C., Chen D., Chen H. Y., Chen J., Chen K., Chen X., Chen Y. -B., Chen Y. -R., Chen Z., Cheng H., Cheong C. K., Cheung H. Y., Chia H. Y., Chiadini F., Chiang C. -Y., Chiarini G., Chierici R., Chincarini A., Chiofalo M. L., Chiummo A., Choudhary R. K., Choudhary S., Christensen N., Chu Q., Chu Y. -K., Chua S. S. Y., Chung K. W., Ciani G., Ciecielag P., Cieslar M., Cifaldi M., Ciobanu A. A., Ciolfi R., Cipriano F., Clara F., Clark J. A., Clearwater P., Clesse S., Cleva F., Coccia E., Codazzo E., Cohadon P. -F., Cohen D. E., Colleoni M., Collette C. G., Colombo A., Colpi M., Compton C. M., Constancio M., Conti L., Cooper S. J., Corban P., Corbitt T. R., Cordero-Carrion I., Corezzi S., Corley K. R., Cornish N. J., Corre D., Corsi A., Cortese S., Costa C. A., Cotesta R., Cottingham R., Coughlin M. W., Coulon J. -P., Countryman S. T., Cousins B., Couvares P., Coward D. M., Cowart M. J., Coyne D. C., Coyne R., Creighton J. D. E., Creighton T. D., Criswell A. W., Croquette M., Crowder S. G., Cudell J. R., Cullen T. J., Cumming A., Cummings R., Cunningham L., Cuoco E., Curylo M., Dabadie P., Dal Canton T., Dall'Osso S., Dalya G., Dana A., D'Angelo B., Danilishin S., D'Antonio S., Danzmann K., Darsow-Fromm C., Dasgupta A., Datrier L. E. H., Datta S., Dattilo V., Dave I., Davier M., Davis D., Davis M. C., Daw E. J., Dean R., DeBra D., Deenadayalan M., Degallaix J., De Laurentis M., Deleglise S., Del Favero V., De Lillo F., De Lillo N., Dell'Aquila D., Del Pozzo W., DeMarchi L. M., De Matteis F., D'Emilio V., Demos N., Dent T., Depasse A., De Pietri R., De Rosa R., De Rossi C., DeSalvo R., De Simone R., Dhurandhar S., Diaz M. C., Didio N. A., Dietrich T., Di Fiore L., Di Fronzo C., Di Giorgio C., Di Giovanni F., Di Giovanni M., Di Girolamo T., Di Lieto A., Di Michele A., Ding B., Di Pace S., Di Palma I., Di Renzo F., Divakarla A. K., Dmitriev A., Doctor Z., Donahue L., D'Onofrio L., Donovan F., Dooley K. L., Doravari S., Drago M., Driggers J. C., Drori Y., Ducoin J. -G., Dupej P., Dupletsa U., Durante O., D'Urso D., Duverne P. -A., Dwyer S. E., Eassa C., Easter P. J., Ebersold M., Eckhardt T., Eddolls G., Edelman B., Edo T. B., Edy O., Effler A., Eguchi S., Eichholz J., Eikenberry S. S., Eisenmann M., Eisenstein R. A., Ejlli A., Engelby E., Enomoto Y., Errico L., Essick R. C., Estelles H., Estevez D., Etienne Z., Etzel T., Evans M., Evans T. M., Evstafyeva T., Ewing B. E., Fabrizi F., Faedi F., Fafone V., Fair H., Fairhurst S., Fan P. C., Farah A. M., Farinon S., Farr B., Farr W. M., Fauchon-Jones E. J., Favaro G., Favata M., Fays M., Fazio M., Feicht J., Fejer M. M., Fenyvesi E., Ferguson D. L., Fernandez-Galiana A., Ferrante I., Ferreira T. A., Fidecaro F., Figura P., Fiori A., Fiori I., Fishbach M., Fisher R. P., Fittipaldi R., Fiumara V., Flaminio R., Floden E., Fong H. K., Font J. A., Fornal B., Forsyth P. W. F., Franke A., Frasca S., Frasconi F., Freed J. P., Frei Z., Freise A., Freitas O., Frey R., Fritschel P., Frolov V. V., Fronze G. G., Fujii Y., Fujikawa Y., Fujimoto Y., Fulda P., Fyffe M., Gabbard H. A., Gabella W. E., Gadre B. U., Gair J. R., Gais J., Galaudage S., Gamba R., Ganapathy D., Ganguly A., Gao D., Gaonkar S. G., Garaventa B., Garcia Nunez C., Garcia-Quiros C., Garufi F., Gateley B., Gayathri V., Ge G. -G., Gemme G., Gennai A., George J., Gerberding O., Gergely L., Gewecke P., Ghonge S., Ghosh A., Ghosh S., Ghosh T., Giacomazzo B., Giacoppo L., Giaime J. A., Giardina K. D., Gibson D. R., Gier C., Giesler M., Giri P., Gissi F., Gkaitatzis S., Glanzer J., Gleckl A. E., Godwin P., Goetz E., Goetz R., Gohlke N., Golomb J., Goncharov B., Gonzalez G., Gosselin M., Gouaty R., Gould D. W., Goyal S., Grace B., Grado A., Graham V., Granata M., Granata V., Grant A., Gras S., Grassia P., Gray C., Gray R., Greco G., Green A. C., Green R., Gretarsson A. M., Gretarsson E. M., Griffith D., Griffiths W. L., Griggs H. L., Grignani G., Grimaldi A., Grimes E., Grimm S. J., Grote H., Grunewald S., Gruning P., Gruson A. S., Guerra D., Guidi G. M., Guimaraes A. R., Guixe G., Gulati H. K., Gunny A. M., Guo H. -K., Guo Y., Gupta A., Gupta I. M., Gupta P., Gupta S. K., Gustafson R., Guzman F., Ha S., Hadiputrawan I. P. W., Haegel L., Haino S., Halim O., Hall E. D., Hamilton E. Z., Hammond G., Han W. -B., Haney M., Hanks J., Hanna C., Hannam M. D., Hannuksela O., Hansen H., Hansen T. J., Hanson J., Harder T., Haris K., Harms J., Harry G. M., Harry I. W., Hartwig D., Hasegawa K., Haskell B., Haster C. -J., Hathaway J. S., Hattori K., Haughian K., Hayakawa H., Hayama K., Hayes F. J., Healy J., Heidmann A., Heidt A., Heintze M. C., Heinze J., Heinzel J., Heitmann H., Hellman F., Hello P., Helmling-Cornell A. F., Hemming G., Hendry M., Heng I. S., Hennes E., Hennig J., Hennig M. H., Henshaw C., Hernandez A. G., Hernandez Vivanco F., Heurs M., Hewitt A. L., Higginbotham S., Hild S., Hill P., Himemoto Y., Hines A. S., Hirata N., Hirose C., Ho T. -C., Hochheim S., Hofman D., Hohmann J. N., Holcomb D. G., Holland N. A., Hollows I. J., Holmes Z. J., Holt K., Holz D. E., Hong Q., Hough J., Hourihane S., Howell E. J., Hoy C. G., Hoyland D., Hreibi A., Hsieh B. -H., Hsieh H. -F., Hsiung C., Hsu Y., Huang H. -Y., Huang P., Huang Y. -C., Huang Y. -J., Huang Y., Hubner M. T., Huddart A. D., Hughey B., Hui D. C. Y., Hui V., Husa S., Huttner S. H., Huxford R., Huynh-Dinh T., Ide S., Idzkowski B., Iess A., Inayoshi K., Inoue Y., Iosif P., Isi M., Isleif K., Ito K., Itoh Y., Iyer B. R., JaberianHamedan V., Jacqmin T., Jacquet P. -E., Jadhav S. J., Jadhav S. P., Jain T., James A. L., Jan A. Z., Jani K., Janquart J., Janssens K., Janthalur N. N., Jaranowski P., Jariwala D., Jaume R., Jenkins A. C., Jenner K., Jeon C., Jia W., Jiang J., Jin H. -B., Johns G. R., Johnston R., Jones A. W., Jones D. I., Jones P., Jones R., Joshi P., Ju L., Jue A., Jung P., Jung K., Junker J., Juste V., Kaihotsu K., Kajita T., Kakizaki M., Kalaghatgi C. V., Kalogera V., Kamai B., Kamiizumi M., Kanda N., Kandhasamy S., Kang G., Kanner J. B., Kao Y., Kapadia S. J., Kapasi D. P., Karathanasis C., Karki S., Kashyap R., Kasprzack M., Kastaun W., Kato T., Katsanevas S., Katsavounidis E., Katzman W., Kaur T., Kawabe K., Kawaguchi K., Kefelian F., Keitel D., Key J. S., Khadka S., Khalili F. Y., Khan S., Khanam T., Khazanov E. A., Khetan N., Khursheed M., Kijbunchoo N., Kim A., Kim C., Kim J. C., Kim J., Kim K., Kim W. S., Kim Y. -M., Kimball C., Kimura N., Kinley-Hanlon M., Kirchhoff R., Kissel J. S., Klimenko S., Klinger T., Knee A. M., Knowles T. D., Knust N., Knyazev E., Kobayashi Y., Koch P., Koekoek G., Kohri K., Kokeyama K., Koley S., Kolitsidou P., Kolstein M., Komori K., Kondrashov V., Kong A. K. H., Kontos A., Koper N., Korobko M., Kovalam M., Koyama N., Kozak D. B., Kozakai C., Kringel V., Krishnendu N. V., Krolak A., Kuehn G., Kuei F., Kuijer P., Kulkarni S., Kumar A., Kumar P., Kumar R., Kume J., Kuns K., Kuromiya Y., Kuroyanagi S., Kwak K., Lacaille G., Lagabbe P., Laghi D., Lalande E., Lalleman M., Lam T. L., Lamberts A., Landry M., Lane B. B., Lang R. N., Lange J., Lantz B., La Rosa I., Lartaux-Vollard A., Lasky P. D., Laxen M., Lazzarini A., Lazzaro C., Leaci P., Leavey S., LeBohec S., Lecoeuche Y. K., Lee E., Lee H. M., Lee H. W., Lee K., Lee R., Legred I. N., Lehmann J., Lemaitre A., Lenti M., Leonardi M., Leonova E., Leroy N., Letendre N., Levesque C., Levin Y., Leviton J. N., Leyde K., Li A. K. Y., Li B., Li J., Li K. L., Li P., Li T. G. F., Li X., Lin C. -Y., Lin E. T., Lin F. -K., Lin F. -L., Lin H. L., Lin L. C. -C., Linde F., Linker S. D., Linley J. N., Littenberg T. B., Liu G. C., Liu J., Liu K., Liu X., Llamas F., Lo R. K. L., Lo T., London L. T., Longo A., Lopez D., Lopez Portilla M., Lorenzini M., Loriette V., Lormand M., Losurdo G., Lott T. P., Lough J. D., Lousto C. O., Lovelace G., Lucaccioni J. F., Luck H., Lumaca D., Lundgren A. P., Luo L. -W., Lynam J. E., Ma'arif M., Macas R., Machtinger J. B., MacInnis M., Macleod D. M., MacMillan I. A. O., Macquet A., Magana Hernandez I., Magazzu C., Magee R. M., Maggiore R., Magnozzi M., Mahesh S., Majorana E., Maksimovic I., Maliakal S., Malik A., Man N., Mandic V., Mangano V., Mansell G. L., Manske M., Mantovani M., Mapelli M., Marchesoni F., Marin Pina D., Marion F., Mark Z., Marka S., Marka Z., Markakis C., Markosyan A. S., Markowitz A., Maros E., Marquina A., Marsat S., Martelli F., Martin I. W., Martin R. M., Martinez M., Martinez V. A., Martinez V., Martinovic K., Martynov D. V., Marx E. J., Masalehdan H., Mason K., Massera E., Masserot A., Masso-Reid M., Mastrogiovanni S., Matas A., Mateu-Lucena M., Matichard F., Matiushechkina M., Mavalvala N., McCann J. J., McCarthy R., McClelland D. E., McClincy P. K., McCormick S., McCuller L., McGhee G. I., McGuire S. C., McIsaac C., McIver J., McRae T., McWilliams S. T., Meacher D., Mehmet M., Mehta A. K., Meijer Q., Melatos A., Melchor D. A., Mendell G., Menendez-Vazquez A., Menoni C. S., Mercer R. A., Mereni L., Merfeld K., Merilh E. L., Merritt J. D., Merzougui M., Meshkov S., Messenger C., Messick C., Meyers P. M., Meylahn F., Mhaske A., Miani A., Miao H., Michaloliakos I., Michel C., Michimura Y., Middleton H., Mihaylov D. P., Milano L., Miller A. L., Miller A., Miller B., Millhouse M., Mills J. C., Milotti E., Minenkov Y., Mio N., Mir L. M., Miravet-Tenes M., Mishkin A., Mishra C., Mishra T., Mistry T., Mitra S., Mitrofanov V. P., Mitselmakher G., Mittleman R., Miyakawa O., Miyo K., Miyoki S., Mo G., Modafferi L. M., Moguel E., Mogushi K., Mohapatra S. R. P., Mohite S. R., Molina I., Molina-Ruiz M., Mondin M., Montani M., Moore C. J., Moragues J., Moraru D., Morawski F., More A., Moreno C., Moreno G., Mori Y., Morisaki S., Morisue N., Moriwaki Y., Mours B., Mow-Lowry C. M., Mozzon S., Muciaccia F., Mukherjee A., Mukherjee D., Mukherjee S., Mukund N., Mullavey A., Munch J., Muniz E. A., Murray P. G., Musenich R., Muusse S., Nadji S. L., Nagano K., Nagar A., Nakamura K., Nakano H., Nakano M., Nakayama Y., Napolano V., Nardecchia I., Narola H., Naticchioni L., Nayak B., Nayak R. K., Neil B. F., Neilson J., Nelson A., Nelson T. J. N., Nery M., Neubauer P., Neunzert A., Ng K. Y., Ng S. W. S., Nguyen C., Nguyen P., Nguyen T., Nguyen Quynh L., Ni J., Ni W. -T., Nichols S. A., Nishimoto T., Nishizawa A., Nissanke S., Nitoglia E., Nocera F., Norman M., North C., Nozaki S., Nurbek G., Nuttall L. K., Obayashi Y., Oberling J., O'Brien B. D., O'Dell J., Oelker E., Ogaki W., Oganesyan G., Oh J. J., Oh K., Oh S. H., Ohashi M., Ohashi T., Ohkawa M., Ohme F., Ohta H., Okada M. A., Okutani Y., Olivetto C., Oohara K., Oram R., O'Reilly B., Ormiston R. G., Ormsby N. D., O'Shaughnessy R., O'Shea E., Oshino S., Ossokine S., Osthelder C., Otabe S., Ottaway D. J., Overmier H., Pace A. E., Pagano G., Pagano R., Page M. A., Pagliaroli G., Pai A., Pai S. A., Pal S., Palamos J. R., Palashov O., Palomba C., Pan H., Pan K. -C., Panda P. K., Pang P. T. H., Pankow C., Pannarale F., Pant B. C., Panther F. H., Paoletti F., Paoli A., Paolone A., Pappas G., Parisi A., Park H., Park J., Parker W., Pascucci D., Pasqualetti A., Passaquieti R., Passuello D., Patel M., Pathak M., Patricelli B., Patron A. S., Paul S., Payne E., Pedraza M., Pedurand R., Pegoraro M., Pele A., Pena Arellano F. E., Penano S., Penn S., Perego A., Pereira A., Pereira T., Perez C. J., Perigois C., Perkins C. C., Perreca A., Perries S., Pesios D., Petermann J., Petterson D., Pfeiffer H. P., Pham H., Pham K. A., Phukon K. S., Phurailatpam H., Piccinni O. J., Pichot M., Piendibene M., Piergiovanni F., Pierini L., Pierro V., Pillant G., Pillas M., Pilo F., Pinard L., Pineda-Bosque C., Pinto I. M., Pinto M., Piotrzkowski B. J., Piotrzkowski K., Pirello M., Pitkin M. D., Placidi A., Placidi E., Planas M. L., Plastino W., Pluchar C., Poggiani R., Polini E., Pong D. Y. T., Ponrathnam S., Porter E. K., Poulton R., Poverman A., Powell J., Pracchia M., Pradier T., Prajapati A. K., Prasai K., Prasanna R., Pratten G., Principe M., Prodi G. A., Prokhorov L., Prosposito P., Prudenzi L., Puecher A., Punturo M., Puosi F., Puppo P., Purrer M., Qi H., Quartey N., Quetschke V., Quinonez P. J., Quitzow-James R., Raab F. J., Raaijmakers G., Radkins H., Radulesco N., Raffai P., Rail S. X., Raja S., Rajan C., Ramirez K. E., Ramirez T. D., Ramos-Buades A., Rana J., Rapagnani P., Ray A., Raymond V., Raza N., Razzano M., Read J., Rees L. A., Regimbau T., Rei L., Reid S., Reid S. W., Reitze D. H., Relton P., Renzini A., Rettegno P., Revenu B., Reza A., Rezac M., Ricci F., Richards D., Richardson J. W., Richardson L., Riemenschneider G., Riles K., Rinaldi S., Rink K., Robertson N. A., Robie R., Robinet F., Rocchi A., Rodriguez S., Rolland L., Rollins J. G., Romanelli M., Romano R., Romel C. L., Romero A., Romero-Shaw I. M., Romie J. H., Ronchini S., Rosa L., Rose C. A., Rosinska D., Ross M. P., Rowan S., Rowlinson S. J., Roy S., Rozza D., Ruggi P., Ruiz-Rocha K., Ryan K., Sachdev S., Sadecki T., Sadiq J., Saha S., Saito Y., Sakai K., Sakellariadou M., Sakon S., Salafia O. S., Salces-Carcoba F., Salconi L., Saleem M., Salemi F., Samajdar A., Sanchez E. J., Sanchez J. H., Sanchez L. E., Sanchis-Gual N., Sanders J. R., Sanuy A., Saravanan T. R., Sarin N., Sassolas B., Satari H., Sauter O., Savage R. L., Savant V., Sawada T., Sawant H. L., Sayah S., Schaetzl D., Scheel M., Scheuer J., Schiworski M. G., Schmidt P., Schmidt S., Schnabel R., Schneewind M., Schofield R. M. S., Schonbeck A., Schulte B. W., Schutz B. F., Schwartz E., Scott J., Scott S. M., Seglar-Arroyo M., Sekiguchi Y., Sellers D., Sengupta A. S., Sentenac D., Seo E. G., Sequino V., Sergeev A., Setyawati Y., Shaffer T., Shahriar M. S., Shaikh M. A., Shams B., Shao L., Sharma A., Sharma P., Shawhan P., Shcheblanov N. S., Sheela A., Shikano Y., Shikauchi M., Shimizu H., Shimode K., Shinkai H., Shishido T., Shoda A., Shoemaker D. H., Shoemaker D. M., ShyamSundar S., Sieniawska M., Sigg D., Silenzi L., Singer L. P., Singh D., Singh M. K., Singh N., Singha A., Sintes A. M., Sipala V., Skliris V., Slagmolen B. J. J., Slaven-Blair T. J., Smetana J., Smith J. R., Smith L., Smith R. J. E., Soldateschi J., Somala S. N., Somiya K., Song I., Soni K., Soni S., Sordini V., Sorrentino F., Sorrentino N., Soulard R., Souradeep T., Sowell E., Spagnuolo V., Spencer A. P., Spera M., Spinicelli P., Srivastava A. K., Srivastava V., Staats K., Stachie C., Stachurski F., Steer D. A., Steinlechner J., Steinlechner S., Stergioulas N., Stops D. J., Stover M., Strain K. A., Strang L. C., Stratta G., Strong M. D., Strunk A., Sturani R., Stuver A. L., Suchenek M., Sudhagar S., Sudhir V., Sugimoto R., Suh H. G., Sullivan A. G., Summerscales T. Z., Sun L., Sunil S., Sur A., Suresh J., Sutton P. J., Suzuki T., Swinkels B. L., Szczepanczyk M. J., Szewczyk P., Tacca M., Tagoshi H., Tait S. C., Takahashi H., Takahashi R., Takano S., Takeda H., Takeda M., Talbot C. J., Talbot C., Tanaka K., Tanaka T., Tanasijczuk A. J., Tanioka S., Tanner D. B., Tao D., Tao L., Tapia R. D., Tapia San Martin E. N., Taranto C., Taruya A., Tasson J. D., Tenorio R., Terhune J. E. S., Terkowski L., Thirugnanasambandam M. P., Thomas M., Thomas P., Thompson E. E., Thompson J. E., Thondapu S. R., Thorne K. A., Thrane E., Tiwari S., Tiwari V., Toivonen A. M., Tolley A. E., Tomaru T., Tomura T., Tonelli M., Tornasi Z., Torres-Forne A., Torrie C. I., Tosta Melo I. E., Toyra D., Trapananti A., Travasso F., Traylor G., Trevor M., Tringali M. C., Tripathee A., Troiano L., Trovato A., Trozzo L., Trudeau R. J., Tsai D., Tsang K. W., Tsang T., Tsao J. -S., Tse M., Tso R., Tsuchida S., Tsukada L., Tsuna D., Tsutsui T., Turbang K., Turconi M., Tuyenbayev D., Ubhi A. S., Uchiyama T., Udall R. P., Ueda A., Uehara T., Ueno K., Ueshima G., Unnikrishnan C. S., Urban A. L., Ushiba T., Utina A., Vajente G., Vajpeyi A., Valdes G., Valentini M., Valsan V., van Bakel N., van Beuzekom M., van Dael M., van den Brand J. F. J., Van Den Broeck C., Vander-Hyde D. C., van Haevermaet H., van Heijningen J. V., van Putten M. H. P. M., van Remortel N., Vardaro M., Vargas A. F., Varma V., Vasuth M., Vecchio A., Vedovato G., Veitch J., Veitch P. J., Venneberg J., Venugopalan G., Verkindt D., Verma P., Verma Y., Vermeulen S. M., Veske D., Vetrano F., Vicere A., Vidyant S., Viets A. D., Vijaykumar A., Villa-Ortega V., Vinet J. -Y., Virtuoso A., Vitale S., Vocca H., von Reis E. R. G., von Wrangel J. S. A., Vorvick C., Vyatchanin S. P., Wade L. E., Wade M., Wagner K. J., Walet R. C., Walker M., Wallace G. S., Wallace L., Wang J., Wang J. Z., Wang W. H., Ward R. L., Warner J., Was M., Washimi T., Washington N. Y., Watchi J., Weaver B., Weaving C. R., Webster S. A., Weinert M., Weinstein A. J., Weiss R., Weller C. M., Weller R. A., Wellmann F., Wen L., Wessels P., Wette K., Whelan J. T., White D. D., Whiting B. F., Whittle C., Wilken D., Williams D., Williams M. J., Williamson A. R., Willis J. L., Willke B., Wilson D. J., Wipf C. C., Wlodarczyk T., Woan G., Woehler J., Wofford J. K., Wong D., Wong I. C. F., Wright M., Wu C., Wu D. S., Wu H., Wysocki D. M., Xiao L., Yamada T., Yamamoto H., Yamamoto K., Yamamoto T., Yamashita K., Yamazaki R., Yang F. W., Yang K. Z., Yang L., Yang Y. -C., Yang Y., Yap M. J., Yeeles D. W., Yeh S. -W., Yelikar A. B., Ying M., Yokoyama J., Yokozawa T., Yoo J., Yoshioka T., Yu H., Yuzurihara H., Zadro¿ny A., Zanolin M., Zeidler S., Zelenova T., Zendri J. -P., Zevin M., Zhan M., Zhang H., Zhang J., Zhang L., Zhang R., Zhang T., Zhang Y., Zhao C., Zhao G., Zhao Y., Zhou R., Zhou Z., Zhu X. J., Zhu Z. -H., Zimmerman A. B., Zucker M. E., Zweizig J., Fletcher, C, Wood, J, Hamburg, R, Veres, P, Hui, C, Bissaldi, E, Briggs, M, Burns, E, Cleveland, W, Giles, M, Goldstein, A, Hristov, B, Kocevski, D, Lesage, S, Mailyan, B, Malacaria, C, Poolakkil, S, von Kienlin, A, Wilson-Hodge, C, Crnogorcevic, M, Delaunay, J, Tohuvavohu, A, Caputo, R, Cenko, S, Laha, S, Parsotan, T, Abbott, R, Abe, H, Acernese, F, Ackley, K, Adhikari, N, Adhikari, R, Adkins, V, Adya, V, Affeldt, C, Agarwal, D, Agathos, M, Agatsuma, K, Aggarwal, N, Aguiar, O, Aiello, L, Ain, A, Ajith, P, Akutsu, T, Albanesi, S, Alfaidi, R, Allocca, A, Altin, P, Amato, A, Anand, C, Anand, S, Ananyeva, A, Anderson, S, Anderson, W, Ando, M, Andrade, T, Andres, N, Andres-Carcasona, M, Andric, T, Angelova, S, Ansoldi, S, Antelis, J, Antier, S, Apostolatos, T, Appavuravther, E, Appert, S, Apple, S, Arai, K, Araya, A, Araya, M, Areeda, J, Arene, M, Aritomi, N, Arnaud, N, Arogeti, M, Aronson, S, Arun, K, Asada, H, Asali, Y, Ashton, G, Aso, Y, Assiduo, M, Assis de Souza Melo, S, Aston, S, Astone, P, Aubin, F, Aultoneal, K, Austin, C, Babak, S, Badaracco, F, Bader, M, Badger, C, Bae, S, Bae, Y, Baer, A, Bagnasco, S, Bai, Y, Baird, J, Bajpai, R, Baka, T, Ball, M, Ballardin, G, Ballmer, S, Balsamo, A, Baltus, G, Banagiri, S, Banerjee, B, Bankar, D, Barayoga, J, Barbieri, C, Barish, B, Barker, D, Barneo, P, Barone, F, Barr, B, Barsotti, L, Barsuglia, M, Barta, D, Bartlett, J, Barton, M, Bartos, I, Basak, S, Bassiri, R, Basti, A, Bawaj, M, Bayley, J, Bazzan, M, Becher, B, Becsy, B, Bedakihale, V, Beirnaert, F, Bejger, M, Belahcene, I, Benedetto, V, Beniwal, D, Benjamin, M, Bennett, T, Bentley, J, Benyaala, M, Bera, S, Berbel, M, Bergamin, F, Berger, B, Bernuzzi, S, Berry, C, Bersanetti, D, Bertolini, A, Betzwieser, J, Beveridge, D, Bhandare, R, Bhandari, A, Bhardwaj, U, Bhatt, R, Bhattacharjee, D, Bhaumik, S, Bianchi, A, Bilenko, I, Billingsley, G, Bini, S, Birney, R, Birnholtz, O, Biscans, S, Bischi, M, Biscoveanu, S, Bisht, A, Biswas, B, Bitossi, M, Bizouard, M, Blackburn, J, Blair, C, Blair, D, Blair, R, Bobba, F, Bode, N, Boer, M, Bogaert, G, Boldrini, M, Bolingbroke, G, Bonavena, L, Bondu, F, Bonilla, E, Bonnand, R, Booker, P, Boom, B, Bork, R, Boschi, V, Bose, N, Bose, S, Bossilkov, V, Boudart, V, Bouffanais, Y, Bozzi, A, Bradaschia, C, Brady, P, Bramley, A, Branch, A, Branchesi, M, Brau, J, Breschi, M, Briant, T, Briggs, J, Brillet, A, Brinkmann, M, Brockill, P, Brooks, A, Brooks, J, Brown, D, Brunett, S, Bruno, G, Bruntz, R, Bryant, J, Bucci, F, Bulik, T, Bulten, H, Buonanno, A, Burtnyk, K, Buscicchio, R, Buskulic, D, Buy, C, Byer, R, Cabourn Davies, G, Cabras, G, Cabrita, R, Cadonati, L, Caesar, M, Cagnoli, G, Cahillane, C, Calderon Bustillo, J, Callaghan, J, Callister, T, Calloni, E, Cameron, J, Camp, J, Canepa, M, Canevarolo, S, Cannavacciuolo, M, Cannon, K, Cao, H, Cao, Z, Capocasa, E, Capote, E, Carapella, G, Carbognani, F, Carlassara, M, Carlin, J, Carney, M, Carpinelli, M, Carrillo, G, Carullo, G, Carver, T, Casanueva Diaz, J, Casentini, C, Castaldi, G, Caudill, S, Cavaglia, M, Cavalier, F, Cavalieri, R, Cella, G, Cerda-Duran, P, Cesarini, E, Chaibi, W, Chalathadka Subrahmanya, S, Champion, E, Chan, C, Chan, K, Chan, M, Chandra, K, Chang, I, Chanial, P, Chao, S, Chapman-Bird, C, Charlton, P, Chase, E, Chassande-Mottin, E, Chatterjee, C, Chatterjee, D, Chaturvedi, M, Chaty, S, Chen, C, Chen, D, Chen, H, Chen, J, Chen, K, Chen, X, Chen, Y, Chen, Z, Cheng, H, Cheong, C, Cheung, H, Chia, H, Chiadini, F, Chiang, C, Chiarini, G, Chierici, R, Chincarini, A, Chiofalo, M, Chiummo, A, Choudhary, R, Choudhary, S, Christensen, N, Chu, Q, Chu, Y, Chua, S, Chung, K, Ciani, G, Ciecielag, P, Cieslar, M, Cifaldi, M, Ciobanu, A, Ciolfi, R, Cipriano, F, Clara, F, Clark, J, Clearwater, P, Clesse, S, Cleva, F, Coccia, E, Codazzo, E, Cohadon, P, Cohen, D, Colleoni, M, Collette, C, Colombo, A, Colpi, M, Compton, C, Constancio, M, Conti, L, Cooper, S, Corban, P, Corbitt, T, Cordero-Carrion, I, Corezzi, S, Corley, K, Cornish, N, Corre, D, Corsi, A, Cortese, S, Costa, C, Cotesta, R, Cottingham, R, Coughlin, M, Coulon, J, Countryman, S, Cousins, B, Couvares, P, Coward, D, Cowart, M, Coyne, D, Coyne, R, Creighton, J, Creighton, T, Criswell, A, Croquette, M, Crowder, S, Cudell, J, Cullen, T, Cumming, A, Cummings, R, Cunningham, L, Cuoco, E, Curylo, M, Dabadie, P, Dal Canton, T, Dall'Osso, S, Dalya, G, Dana, A, D'Angelo, B, Danilishin, S, D'Antonio, S, Danzmann, K, Darsow-Fromm, C, Dasgupta, A, Datrier, L, Datta, S, Dattilo, V, Dave, I, Davier, M, Davis, D, Davis, M, Daw, E, Dean, R, Debra, D, Deenadayalan, M, Degallaix, J, De Laurentis, M, Deleglise, S, Del Favero, V, De Lillo, F, De Lillo, N, Dell'Aquila, D, Del Pozzo, W, Demarchi, L, De Matteis, F, D'Emilio, V, Demos, N, Dent, T, Depasse, A, De Pietri, R, De Rosa, R, De Rossi, C, Desalvo, R, De Simone, R, Dhurandhar, S, Diaz, M, Didio, N, Dietrich, T, Di Fiore, L, Di Fronzo, C, Di Giorgio, C, Di Giovanni, F, Di Giovanni, M, Di Girolamo, T, Di Lieto, A, Di Michele, A, Ding, B, Di Pace, S, Di Palma, I, Di Renzo, F, Divakarla, A, Dmitriev, A, Doctor, Z, Donahue, L, D'Onofrio, L, Donovan, F, Dooley, K, Doravari, S, Drago, M, Driggers, J, Drori, Y, Ducoin, J, Dupej, P, Dupletsa, U, Durante, O, D'Urso, D, Duverne, P, Dwyer, S, Eassa, C, Easter, P, Ebersold, M, Eckhardt, T, Eddolls, G, Edelman, B, Edo, T, Edy, O, Effler, A, Eguchi, S, Eichholz, J, Eikenberry, S, Eisenmann, M, Eisenstein, R, Ejlli, A, Engelby, E, Enomoto, Y, Errico, L, Essick, R, Estelles, H, Estevez, D, Etienne, Z, Etzel, T, Evans, M, Evans, T, Evstafyeva, T, Ewing, B, Fabrizi, F, Faedi, F, Fafone, V, Fair, H, Fairhurst, S, Fan, P, Farah, A, Farinon, S, Farr, B, Farr, W, Fauchon-Jones, E, Favaro, G, Favata, M, Fays, M, Fazio, M, Feicht, J, Fejer, M, Fenyvesi, E, Ferguson, D, Fernandez-Galiana, A, Ferrante, I, Ferreira, T, Fidecaro, F, Figura, P, Fiori, A, Fiori, I, Fishbach, M, Fisher, R, Fittipaldi, R, Fiumara, V, Flaminio, R, Floden, E, Fong, H, Font, J, Fornal, B, Forsyth, P, Franke, A, Frasca, S, Frasconi, F, Freed, J, Frei, Z, Freise, A, Freitas, O, Frey, R, Fritschel, P, Frolov, V, Fronze, G, Fujii, Y, Fujikawa, Y, Fujimoto, Y, Fulda, P, Fyffe, M, Gabbard, H, Gabella, W, Gadre, B, Gair, J, Gais, J, Galaudage, S, Gamba, R, Ganapathy, D, Ganguly, A, Gao, D, Gaonkar, S, Garaventa, B, Garcia Nunez, C, Garcia-Quiros, C, Garufi, F, Gateley, B, Gayathri, V, Ge, G, Gemme, G, Gennai, A, George, J, Gerberding, O, Gergely, L, Gewecke, P, Ghonge, S, Ghosh, A, Ghosh, S, Ghosh, T, Giacomazzo, B, Giacoppo, L, Giaime, J, Giardina, K, Gibson, D, Gier, C, Giesler, M, Giri, P, Gissi, F, Gkaitatzis, S, Glanzer, J, Gleckl, A, Godwin, P, Goetz, E, Goetz, R, Gohlke, N, Golomb, J, Goncharov, B, Gonzalez, G, Gosselin, M, Gouaty, R, Gould, D, Goyal, S, Grace, B, Grado, A, Graham, V, Granata, M, Granata, V, Grant, A, Gras, S, Grassia, P, Gray, C, Gray, R, Greco, G, Green, A, Green, R, Gretarsson, A, Gretarsson, E, Griffith, D, Griffiths, W, Griggs, H, Grignani, G, Grimaldi, A, Grimes, E, Grimm, S, Grote, H, Grunewald, S, Gruning, P, Gruson, A, Guerra, D, Guidi, G, Guimaraes, A, Guixe, G, Gulati, H, Gunny, A, Guo, H, Guo, Y, Gupta, A, Gupta, I, Gupta, P, Gupta, S, Gustafson, R, Guzman, F, Ha, S, Hadiputrawan, I, Haegel, L, Haino, S, Halim, O, Hall, E, Hamilton, E, Hammond, G, Han, W, Haney, M, Hanks, J, Hanna, C, Hannam, M, Hannuksela, O, Hansen, H, Hansen, T, Hanson, J, Harder, T, Haris, K, Harms, J, Harry, G, Harry, I, Hartwig, D, Hasegawa, K, Haskell, B, Haster, C, Hathaway, J, Hattori, K, Haughian, K, Hayakawa, H, Hayama, K, Hayes, F, Healy, J, Heidmann, A, Heidt, A, Heintze, M, Heinze, J, Heinzel, J, Heitmann, H, Hellman, F, Hello, P, Helmling-Cornell, A, Hemming, G, Hendry, M, Heng, I, Hennes, E, Hennig, J, Hennig, M, Henshaw, C, Hernandez, A, Hernandez Vivanco, F, Heurs, M, Hewitt, A, Higginbotham, S, Hild, S, Hill, P, Himemoto, Y, Hines, A, Hirata, N, Hirose, C, Ho, T, Hochheim, S, Hofman, D, Hohmann, J, Holcomb, D, Holland, N, Hollows, I, Holmes, Z, Holt, K, Holz, D, Hong, Q, Hough, J, Hourihane, S, Howell, E, Hoy, C, Hoyland, D, Hreibi, A, Hsieh, B, Hsieh, H, Hsiung, C, Hsu, Y, Huang, H, Huang, P, Huang, Y, Hubner, M, Huddart, A, Hughey, B, Hui, D, Hui, V, Husa, S, Huttner, S, Huxford, R, Huynh-Dinh, T, Ide, S, Idzkowski, B, Iess, A, Inayoshi, K, Inoue, Y, Iosif, P, Isi, M, Isleif, K, Ito, K, Itoh, Y, Iyer, B, Jaberianhamedan, V, Jacqmin, T, Jacquet, P, Jadhav, S, Jain, T, James, A, Jan, A, Jani, K, Janquart, J, Janssens, K, Janthalur, N, Jaranowski, P, Jariwala, D, Jaume, R, Jenkins, A, Jenner, K, Jeon, C, Jia, W, Jiang, J, Jin, H, Johns, G, Johnston, R, Jones, A, Jones, D, Jones, P, Jones, R, Joshi, P, Ju, L, Jue, A, Jung, P, Jung, K, Junker, J, Juste, V, Kaihotsu, K, Kajita, T, Kakizaki, M, Kalaghatgi, C, Kalogera, V, Kamai, B, Kamiizumi, M, Kanda, N, Kandhasamy, S, Kang, G, Kanner, J, Kao, Y, Kapadia, S, Kapasi, D, Karathanasis, C, Karki, S, Kashyap, R, Kasprzack, M, Kastaun, W, Kato, T, Katsanevas, S, Katsavounidis, E, Katzman, W, Kaur, T, Kawabe, K, Kawaguchi, K, Kefelian, F, Keitel, D, Key, J, Khadka, S, Khalili, F, Khan, S, Khanam, T, Khazanov, E, Khetan, N, Khursheed, M, Kijbunchoo, N, Kim, A, Kim, C, Kim, J, Kim, K, Kim, W, Kim, Y, Kimball, C, Kimura, N, Kinley-Hanlon, M, Kirchhoff, R, Kissel, J, Klimenko, S, Klinger, T, Knee, A, Knowles, T, Knust, N, Knyazev, E, Kobayashi, Y, Koch, P, Koekoek, G, Kohri, K, Kokeyama, K, Koley, S, Kolitsidou, P, Kolstein, M, Komori, K, Kondrashov, V, Kong, A, Kontos, A, Koper, N, Korobko, M, Kovalam, M, Koyama, N, Kozak, D, Kozakai, C, Kringel, V, Krishnendu, N, Krolak, A, Kuehn, G, Kuei, F, Kuijer, P, Kulkarni, S, Kumar, A, Kumar, P, Kumar, R, Kume, J, Kuns, K, Kuromiya, Y, Kuroyanagi, S, Kwak, K, Lacaille, G, Lagabbe, P, Laghi, D, Lalande, E, Lalleman, M, Lam, T, Lamberts, A, Landry, M, Lane, B, Lang, R, Lange, J, Lantz, B, La Rosa, I, Lartaux-Vollard, A, Lasky, P, Laxen, M, Lazzarini, A, Lazzaro, C, Leaci, P, Leavey, S, Lebohec, S, Lecoeuche, Y, Lee, E, Lee, H, Lee, K, Lee, R, Legred, I, Lehmann, J, Lemaitre, A, Lenti, M, Leonardi, M, Leonova, E, Leroy, N, Letendre, N, Levesque, C, Levin, Y, Leviton, J, Leyde, K, Li, A, Li, B, Li, J, Li, K, Li, P, Li, T, Li, X, Lin, C, Lin, E, Lin, F, Lin, H, Lin, L, Linde, F, Linker, S, Linley, J, Littenberg, T, Liu, G, Liu, J, Liu, K, Liu, X, Llamas, F, Lo, R, Lo, T, London, L, Longo, A, Lopez, D, Lopez Portilla, M, Lorenzini, M, Loriette, V, Lormand, M, Losurdo, G, Lott, T, Lough, J, Lousto, C, Lovelace, G, Lucaccioni, J, Luck, H, Lumaca, D, Lundgren, A, Luo, L, Lynam, J, Ma'Arif, M, Macas, R, Machtinger, J, Macinnis, M, Macleod, D, Macmillan, I, Macquet, A, Magana Hernandez, I, Magazzu, C, Magee, R, Maggiore, R, Magnozzi, M, Mahesh, S, Majorana, E, Maksimovic, I, Maliakal, S, Malik, A, Man, N, Mandic, V, Mangano, V, Mansell, G, Manske, M, Mantovani, M, Mapelli, M, Marchesoni, F, Marin Pina, D, Marion, F, Mark, Z, Marka, S, Marka, Z, Markakis, C, Markosyan, A, Markowitz, A, Maros, E, Marquina, A, Marsat, S, Martelli, F, Martin, I, Martin, R, Martinez, M, Martinez, V, Martinovic, K, Martynov, D, Marx, E, Masalehdan, H, Mason, K, Massera, E, Masserot, A, Masso-Reid, M, Mastrogiovanni, S, Matas, A, Mateu-Lucena, M, Matichard, F, Matiushechkina, M, Mavalvala, N, Mccann, J, Mccarthy, R, Mcclelland, D, Mcclincy, P, Mccormick, S, Mcculler, L, Mcghee, G, Mcguire, S, Mcisaac, C, Mciver, J, Mcrae, T, Mcwilliams, S, Meacher, D, Mehmet, M, Mehta, A, Meijer, Q, Melatos, A, Melchor, D, Mendell, G, Menendez-Vazquez, A, Menoni, C, Mercer, R, Mereni, L, Merfeld, K, Merilh, E, Merritt, J, Merzougui, M, Meshkov, S, Messenger, C, Messick, C, Meyers, P, Meylahn, F, Mhaske, A, Miani, A, Miao, H, Michaloliakos, I, Michel, C, Michimura, Y, Middleton, H, Mihaylov, D, Milano, L, Miller, A, Miller, B, Millhouse, M, Mills, J, Milotti, E, Minenkov, Y, Mio, N, Mir, L, Miravet-Tenes, M, Mishkin, A, Mishra, C, Mishra, T, Mistry, T, Mitra, S, Mitrofanov, V, Mitselmakher, G, Mittleman, R, Miyakawa, O, Miyo, K, Miyoki, S, Mo, G, Modafferi, L, Moguel, E, Mogushi, K, Mohapatra, S, Mohite, S, Molina, I, Molina-Ruiz, M, Mondin, M, Montani, M, Moore, C, Moragues, J, Moraru, D, Morawski, F, More, A, Moreno, C, Moreno, G, Mori, Y, Morisaki, S, Morisue, N, Moriwaki, Y, Mours, B, Mow-Lowry, C, Mozzon, S, Muciaccia, F, Mukherjee, A, Mukherjee, D, Mukherjee, S, Mukund, N, Mullavey, A, Munch, J, Muniz, E, Murray, P, Musenich, R, Muusse, S, Nadji, S, Nagano, K, Nagar, A, Nakamura, K, Nakano, H, Nakano, M, Nakayama, Y, Napolano, V, Nardecchia, I, Narola, H, Naticchioni, L, Nayak, B, Nayak, R, Neil, B, Neilson, J, Nelson, A, Nelson, T, Nery, M, Neubauer, P, Neunzert, A, Ng, K, Ng, S, Nguyen, C, Nguyen, P, Nguyen, T, Nguyen Quynh, L, Ni, J, Ni, W, Nichols, S, Nishimoto, T, Nishizawa, A, Nissanke, S, Nitoglia, E, Nocera, F, Norman, M, North, C, Nozaki, S, Nurbek, G, Nuttall, L, Obayashi, Y, Oberling, J, O'Brien, B, O'Dell, J, Oelker, E, Ogaki, W, Oganesyan, G, Oh, J, Oh, K, Oh, S, Ohashi, M, Ohashi, T, Ohkawa, M, Ohme, F, Ohta, H, Okada, M, Okutani, Y, Olivetto, C, Oohara, K, Oram, R, O'Reilly, B, Ormiston, R, Ormsby, N, O'Shaughnessy, R, O'Shea, E, Oshino, S, Ossokine, S, Osthelder, C, Otabe, S, Ottaway, D, Overmier, H, Pace, A, Pagano, G, Pagano, R, Page, M, Pagliaroli, G, Pai, A, Pai, S, Pal, S, Palamos, J, Palashov, O, Palomba, C, Pan, H, Pan, K, Panda, P, Pang, P, Pankow, C, Pannarale, F, Pant, B, Panther, F, Paoletti, F, Paoli, A, Paolone, A, Pappas, G, Parisi, A, Park, H, Park, J, Parker, W, Pascucci, D, Pasqualetti, A, Passaquieti, R, Passuello, D, Patel, M, Pathak, M, Patricelli, B, Patron, A, Paul, S, Payne, E, Pedraza, M, Pedurand, R, Pegoraro, M, Pele, A, Pena Arellano, F, Penano, S, Penn, S, Perego, A, Pereira, A, Pereira, T, Perez, C, Perigois, C, Perkins, C, Perreca, A, Perries, S, Pesios, D, Petermann, J, Petterson, D, Pfeiffer, H, Pham, H, Pham, K, Phukon, K, Phurailatpam, H, Piccinni, O, Pichot, M, Piendibene, M, Piergiovanni, F, Pierini, L, Pierro, V, Pillant, G, Pillas, M, Pilo, F, Pinard, L, Pineda-Bosque, C, Pinto, I, Pinto, M, Piotrzkowski, B, Piotrzkowski, K, Pirello, M, Pitkin, M, Placidi, A, Placidi, E, Planas, M, Plastino, W, Pluchar, C, Poggiani, R, Polini, E, Pong, D, Ponrathnam, S, Porter, E, Poulton, R, Poverman, A, Powell, J, Pracchia, M, Pradier, T, Prajapati, A, Prasai, K, Prasanna, R, Pratten, G, Principe, M, Prodi, G, Prokhorov, L, Prosposito, P, Prudenzi, L, Puecher, A, Punturo, M, Puosi, F, Puppo, P, Purrer, M, Qi, H, Quartey, N, Quetschke, V, Quinonez, P, Quitzow-James, R, Raab, F, Raaijmakers, G, Radkins, H, Radulesco, N, Raffai, P, Rail, S, Raja, S, Rajan, C, Ramirez, K, Ramirez, T, Ramos-Buades, A, Rana, J, Rapagnani, P, Ray, A, Raymond, V, Raza, N, Razzano, M, Read, J, Rees, L, Regimbau, T, Rei, L, Reid, S, Reitze, D, Relton, P, Renzini, A, Rettegno, P, Revenu, B, Reza, A, Rezac, M, Ricci, F, Richards, D, Richardson, J, Richardson, L, Riemenschneider, G, Riles, K, Rinaldi, S, Rink, K, Robertson, N, Robie, R, Robinet, F, Rocchi, A, Rodriguez, S, Rolland, L, Rollins, J, Romanelli, M, Romano, R, Romel, C, Romero, A, Romero-Shaw, I, Romie, J, Ronchini, S, Rosa, L, Rose, C, Rosinska, D, Ross, M, Rowan, S, Rowlinson, S, Roy, S, Rozza, D, Ruggi, P, Ruiz-Rocha, K, Ryan, K, Sachdev, S, Sadecki, T, Sadiq, J, Saha, S, Saito, Y, Sakai, K, Sakellariadou, M, Sakon, S, Salafia, O, Salces-Carcoba, F, Salconi, L, Saleem, M, Salemi, F, Samajdar, A, Sanchez, E, Sanchez, J, Sanchez, L, Sanchis-Gual, N, Sanders, J, Sanuy, A, Saravanan, T, Sarin, N, Sassolas, B, Satari, H, Sauter, O, Savage, R, Savant, V, Sawada, T, Sawant, H, Sayah, S, Schaetzl, D, Scheel, M, Scheuer, J, Schiworski, M, Schmidt, P, Schmidt, S, Schnabel, R, Schneewind, M, Schofield, R, Schonbeck, A, Schulte, B, Schutz, B, Schwartz, E, Scott, J, Scott, S, Seglar-Arroyo, M, Sekiguchi, Y, Sellers, D, Sengupta, A, Sentenac, D, Seo, E, Sequino, V, Sergeev, A, Setyawati, Y, Shaffer, T, Shahriar, M, Shaikh, M, Shams, B, Shao, L, Sharma, A, Sharma, P, Shawhan, P, Shcheblanov, N, Sheela, A, Shikano, Y, Shikauchi, M, Shimizu, H, Shimode, K, Shinkai, H, Shishido, T, Shoda, A, Shoemaker, D, Shyamsundar, S, Sieniawska, M, Sigg, D, Silenzi, L, Singer, L, Singh, D, Singh, M, Singh, N, Singha, A, Sintes, A, Sipala, V, Skliris, V, Slagmolen, B, Slaven-Blair, T, Smetana, J, Smith, J, Smith, L, Smith, R, Soldateschi, J, Somala, S, Somiya, K, Song, I, Soni, K, Soni, S, Sordini, V, Sorrentino, F, Sorrentino, N, Soulard, R, Souradeep, T, Sowell, E, Spagnuolo, V, Spencer, A, Spera, M, Spinicelli, P, Srivastava, A, Srivastava, V, Staats, K, Stachie, C, Stachurski, F, Steer, D, Steinlechner, J, Steinlechner, S, Stergioulas, N, Stops, D, Stover, M, Strain, K, Strang, L, Stratta, G, Strong, M, Strunk, A, Sturani, R, Stuver, A, Suchenek, M, Sudhagar, S, Sudhir, V, Sugimoto, R, Suh, H, Sullivan, A, Summerscales, T, Sun, L, Sunil, S, Sur, A, Suresh, J, Sutton, P, Suzuki, T, Swinkels, B, Szczepanczyk, M, Szewczyk, P, Tacca, M, Tagoshi, H, Tait, S, Takahashi, H, Takahashi, R, Takano, S, Takeda, H, Takeda, M, Talbot, C, Tanaka, K, Tanaka, T, Tanasijczuk, A, Tanioka, S, Tanner, D, Tao, D, Tao, L, Tapia, R, Tapia San Martin, E, Taranto, C, Taruya, A, Tasson, J, Tenorio, R, Terhune, J, Terkowski, L, Thirugnanasambandam, M, Thomas, M, Thomas, P, Thompson, E, Thompson, J, Thondapu, S, Thorne, K, Thrane, E, Tiwari, S, Tiwari, V, Toivonen, A, Tolley, A, Tomaru, T, Tomura, T, Tonelli, M, Tornasi, Z, Torres-Forne, A, Torrie, C, Tosta Melo, I, Toyra, D, Trapananti, A, Travasso, F, Traylor, G, Trevor, M, Tringali, M, Tripathee, A, Troiano, L, Trovato, A, Trozzo, L, Trudeau, R, Tsai, D, Tsang, K, Tsang, T, Tsao, J, Tse, M, Tso, R, Tsuchida, S, Tsukada, L, Tsuna, D, Tsutsui, T, Turbang, K, Turconi, M, Tuyenbayev, D, Ubhi, A, Uchiyama, T, Udall, R, Ueda, A, Uehara, T, Ueno, K, Ueshima, G, Unnikrishnan, C, Urban, A, Ushiba, T, Utina, A, Vajente, G, Vajpeyi, A, Valdes, G, Valentini, M, Valsan, V, van Bakel, N, van Beuzekom, M, van Dael, M, van den Brand, J, Van Den Broeck, C, Vander-Hyde, D, van Haevermaet, H, van Heijningen, J, van Putten, M, van Remortel, N, Vardaro, M, Vargas, A, Varma, V, Vasuth, M, Vecchio, A, Vedovato, G, Veitch, J, Veitch, P, Venneberg, J, Venugopalan, G, Verkindt, D, Verma, P, Verma, Y, Vermeulen, S, Veske, D, Vetrano, F, Vicere, A, Vidyant, S, Viets, A, Vijaykumar, A, Villa-Ortega, V, Vinet, J, Virtuoso, A, Vitale, S, Vocca, H, von Reis, E, von Wrangel, J, Vorvick, C, Vyatchanin, S, Wade, L, Wade, M, Wagner, K, Walet, R, Walker, M, Wallace, G, Wallace, L, Wang, J, Wang, W, Ward, R, Warner, J, Was, M, Washimi, T, Washington, N, Watchi, J, Weaver, B, Weaving, C, Webster, S, Weinert, M, Weinstein, A, Weiss, R, Weller, C, Weller, R, Wellmann, F, Wen, L, Wessels, P, Wette, K, Whelan, J, White, D, Whiting, B, Whittle, C, Wilken, D, Williams, D, Williams, M, Williamson, A, Willis, J, Willke, B, Wilson, D, Wipf, C, Wlodarczyk, T, Woan, G, Woehler, J, Wofford, J, Wong, D, Wong, I, Wright, M, Wu, C, Wu, D, Wu, H, Wysocki, D, Xiao, L, Yamada, T, Yamamoto, H, Yamamoto, K, Yamamoto, T, Yamashita, K, Yamazaki, R, Yang, F, Yang, K, Yang, L, Yang, Y, Yap, M, Yeeles, D, Yeh, S, Yelikar, A, Ying, M, Yokoyama, J, Yokozawa, T, Yoo, J, Yoshioka, T, Yu, H, Yuzurihara, H, Zadro¿ny, A, Zanolin, M, Zeidler, S, Zelenova, T, Zendri, J, Zevin, M, Zhan, M, Zhang, H, Zhang, J, Zhang, L, Zhang, R, Zhang, T, Zhang, Y, Zhao, C, Zhao, G, Zhao, Y, Zhou, R, Zhou, Z, Zhu, X, Zhu, Z, Zimmerman, A, Zucker, M, Zweizig, J, Fletcher C., Wood J., Hamburg R., Veres P., Hui C. M., Bissaldi E., Briggs M. S., Burns E., Cleveland W. H., Giles M. M., Goldstein A., Hristov B. A., Kocevski D., Lesage S., Mailyan B., Malacaria C., Poolakkil S., von Kienlin A., Wilson-Hodge C. A., Crnogorcevic M., DeLaunay J., Tohuvavohu A., Caputo R., Cenko S. B., Laha S., Parsotan T., Abbott R., Abe H., Acernese F., Ackley K., Adhikari N., Adhikari R. X., Adkins V. K., Adya V. B., Affeldt C., Agarwal D., Agathos M., Agatsuma K., Aggarwal N., Aguiar O. D., Aiello L., Ain A., Ajith P., Akutsu T., Albanesi S., Alfaidi R. A., Allocca A., Altin P. A., Amato A., Anand C., Anand S., Ananyeva A., Anderson S. B., Anderson W. G., Ando M., Andrade T., Andres N., Andres-Carcasona M., Andric T., Angelova S. V., Ansoldi S., Antelis J. M., Antier S., Apostolatos T., Appavuravther E. Z., Appert S., Apple S. K., Arai K., Araya A., Araya M. C., Areeda J. S., Arene M., Aritomi N., Arnaud N., Arogeti M., Aronson S. M., Arun K. G., Asada H., Asali Y., Ashton G., Aso Y., Assiduo M., Assis de Souza Melo S., Aston S. M., Astone P., Aubin F., Aultoneal K., Austin C., Babak S., Badaracco F., Bader M. K. M., Badger C., Bae S., Bae Y., Baer A. M., Bagnasco S., Bai Y., Baird J., Bajpai R., Baka T., Ball M., Ballardin G., Ballmer S. W., Balsamo A., Baltus G., Banagiri S., Banerjee B., Bankar D., Barayoga J. C., Barbieri C., Barish B. C., Barker D., Barneo P., Barone F., Barr B., Barsotti L., Barsuglia M., Barta D., Bartlett J., Barton M. A., Bartos I., Basak S., Bassiri R., Basti A., Bawaj M., Bayley J. C., Bazzan M., Becher B. R., Becsy B., Bedakihale V. M., Beirnaert F., Bejger M., Belahcene I., Benedetto V., Beniwal D., Benjamin M. G., Bennett T. F., Bentley J. D., BenYaala M., Bera S., Berbel M., Bergamin F., Berger B. K., Bernuzzi S., Berry C. P. L., Bersanetti D., Bertolini A., Betzwieser J., Beveridge D., Bhandare R., Bhandari A. V., Bhardwaj U., Bhatt R., Bhattacharjee D., Bhaumik S., Bianchi A., Bilenko I. A., Billingsley G., Bini S., Birney R., Birnholtz O., Biscans S., Bischi M., Biscoveanu S., Bisht A., Biswas B., Bitossi M., Bizouard M. -A., Blackburn J. K., Blair C. D., Blair D. G., Blair R. M., Bobba F., Bode N., Boer M., Bogaert G., Boldrini M., Bolingbroke G. N., Bonavena L. D., Bondu F., Bonilla E., Bonnand R., Booker P., Boom B. A., Bork R., Boschi V., Bose N., Bose S., Bossilkov V., Boudart V., Bouffanais Y., Bozzi A., Bradaschia C., Brady P. R., Bramley A., Branch A., Branchesi M., Brau J. E., Breschi M., Briant T., Briggs J. H., Brillet A., Brinkmann M., Brockill P., Brooks A. F., Brooks J., Brown D. D., Brunett S., Bruno G., Bruntz R., Bryant J., Bucci F., Bulik T., Bulten H. J., Buonanno A., Burtnyk K., Buscicchio R., Buskulic D., Buy C., Byer R. L., Cabourn Davies G. S., Cabras G., Cabrita R., Cadonati L., Caesar M., Cagnoli G., Cahillane C., Calderon Bustillo J., Callaghan J. D., Callister T. A., Calloni E., Cameron J., Camp J. B., Canepa M., Canevarolo S., Cannavacciuolo M., Cannon K. C., Cao H., Cao Z., Capocasa E., Capote E., Carapella G., Carbognani F., Carlassara M., Carlin J. B., Carney M. F., Carpinelli M., Carrillo G., Carullo G., Carver T. L., Casanueva Diaz J., Casentini C., Castaldi G., Caudill S., Cavaglia M., Cavalier F., Cavalieri R., Cella G., Cerda-Duran P., Cesarini E., Chaibi W., Chalathadka Subrahmanya S., Champion E., Chan C. -H., Chan C., Chan C. L., Chan K., Chan M., Chandra K., Chang I. P., Chanial P., Chao S., Chapman-Bird C., Charlton P., Chase E. A., Chassande-Mottin E., Chatterjee C., Chatterjee D., Chaturvedi M., Chaty S., Chen C., Chen D., Chen H. Y., Chen J., Chen K., Chen X., Chen Y. -B., Chen Y. -R., Chen Z., Cheng H., Cheong C. K., Cheung H. Y., Chia H. Y., Chiadini F., Chiang C. -Y., Chiarini G., Chierici R., Chincarini A., Chiofalo M. L., Chiummo A., Choudhary R. K., Choudhary S., Christensen N., Chu Q., Chu Y. -K., Chua S. S. Y., Chung K. W., Ciani G., Ciecielag P., Cieslar M., Cifaldi M., Ciobanu A. A., Ciolfi R., Cipriano F., Clara F., Clark J. A., Clearwater P., Clesse S., Cleva F., Coccia E., Codazzo E., Cohadon P. -F., Cohen D. E., Colleoni M., Collette C. G., Colombo A., Colpi M., Compton C. M., Constancio M., Conti L., Cooper S. J., Corban P., Corbitt T. R., Cordero-Carrion I., Corezzi S., Corley K. R., Cornish N. J., Corre D., Corsi A., Cortese S., Costa C. A., Cotesta R., Cottingham R., Coughlin M. W., Coulon J. -P., Countryman S. T., Cousins B., Couvares P., Coward D. M., Cowart M. J., Coyne D. C., Coyne R., Creighton J. D. E., Creighton T. D., Criswell A. W., Croquette M., Crowder S. G., Cudell J. R., Cullen T. J., Cumming A., Cummings R., Cunningham L., Cuoco E., Curylo M., Dabadie P., Dal Canton T., Dall'Osso S., Dalya G., Dana A., D'Angelo B., Danilishin S., D'Antonio S., Danzmann K., Darsow-Fromm C., Dasgupta A., Datrier L. E. H., Datta S., Dattilo V., Dave I., Davier M., Davis D., Davis M. C., Daw E. J., Dean R., DeBra D., Deenadayalan M., Degallaix J., De Laurentis M., Deleglise S., Del Favero V., De Lillo F., De Lillo N., Dell'Aquila D., Del Pozzo W., DeMarchi L. M., De Matteis F., D'Emilio V., Demos N., Dent T., Depasse A., De Pietri R., De Rosa R., De Rossi C., DeSalvo R., De Simone R., Dhurandhar S., Diaz M. C., Didio N. A., Dietrich T., Di Fiore L., Di Fronzo C., Di Giorgio C., Di Giovanni F., Di Giovanni M., Di Girolamo T., Di Lieto A., Di Michele A., Ding B., Di Pace S., Di Palma I., Di Renzo F., Divakarla A. K., Dmitriev A., Doctor Z., Donahue L., D'Onofrio L., Donovan F., Dooley K. L., Doravari S., Drago M., Driggers J. C., Drori Y., Ducoin J. -G., Dupej P., Dupletsa U., Durante O., D'Urso D., Duverne P. -A., Dwyer S. E., Eassa C., Easter P. J., Ebersold M., Eckhardt T., Eddolls G., Edelman B., Edo T. B., Edy O., Effler A., Eguchi S., Eichholz J., Eikenberry S. S., Eisenmann M., Eisenstein R. A., Ejlli A., Engelby E., Enomoto Y., Errico L., Essick R. C., Estelles H., Estevez D., Etienne Z., Etzel T., Evans M., Evans T. M., Evstafyeva T., Ewing B. E., Fabrizi F., Faedi F., Fafone V., Fair H., Fairhurst S., Fan P. C., Farah A. M., Farinon S., Farr B., Farr W. M., Fauchon-Jones E. J., Favaro G., Favata M., Fays M., Fazio M., Feicht J., Fejer M. M., Fenyvesi E., Ferguson D. L., Fernandez-Galiana A., Ferrante I., Ferreira T. A., Fidecaro F., Figura P., Fiori A., Fiori I., Fishbach M., Fisher R. P., Fittipaldi R., Fiumara V., Flaminio R., Floden E., Fong H. K., Font J. A., Fornal B., Forsyth P. W. F., Franke A., Frasca S., Frasconi F., Freed J. P., Frei Z., Freise A., Freitas O., Frey R., Fritschel P., Frolov V. V., Fronze G. G., Fujii Y., Fujikawa Y., Fujimoto Y., Fulda P., Fyffe M., Gabbard H. A., Gabella W. E., Gadre B. U., Gair J. R., Gais J., Galaudage S., Gamba R., Ganapathy D., Ganguly A., Gao D., Gaonkar S. G., Garaventa B., Garcia Nunez C., Garcia-Quiros C., Garufi F., Gateley B., Gayathri V., Ge G. -G., Gemme G., Gennai A., George J., Gerberding O., Gergely L., Gewecke P., Ghonge S., Ghosh A., Ghosh S., Ghosh T., Giacomazzo B., Giacoppo L., Giaime J. A., Giardina K. D., Gibson D. R., Gier C., Giesler M., Giri P., Gissi F., Gkaitatzis S., Glanzer J., Gleckl A. E., Godwin P., Goetz E., Goetz R., Gohlke N., Golomb J., Goncharov B., Gonzalez G., Gosselin M., Gouaty R., Gould D. W., Goyal S., Grace B., Grado A., Graham V., Granata M., Granata V., Grant A., Gras S., Grassia P., Gray C., Gray R., Greco G., Green A. C., Green R., Gretarsson A. M., Gretarsson E. M., Griffith D., Griffiths W. L., Griggs H. L., Grignani G., Grimaldi A., Grimes E., Grimm S. J., Grote H., Grunewald S., Gruning P., Gruson A. S., Guerra D., Guidi G. M., Guimaraes A. R., Guixe G., Gulati H. K., Gunny A. M., Guo H. -K., Guo Y., Gupta A., Gupta I. M., Gupta P., Gupta S. K., Gustafson R., Guzman F., Ha S., Hadiputrawan I. P. W., Haegel L., Haino S., Halim O., Hall E. D., Hamilton E. Z., Hammond G., Han W. -B., Haney M., Hanks J., Hanna C., Hannam M. D., Hannuksela O., Hansen H., Hansen T. J., Hanson J., Harder T., Haris K., Harms J., Harry G. M., Harry I. W., Hartwig D., Hasegawa K., Haskell B., Haster C. -J., Hathaway J. S., Hattori K., Haughian K., Hayakawa H., Hayama K., Hayes F. J., Healy J., Heidmann A., Heidt A., Heintze M. C., Heinze J., Heinzel J., Heitmann H., Hellman F., Hello P., Helmling-Cornell A. F., Hemming G., Hendry M., Heng I. S., Hennes E., Hennig J., Hennig M. H., Henshaw C., Hernandez A. G., Hernandez Vivanco F., Heurs M., Hewitt A. L., Higginbotham S., Hild S., Hill P., Himemoto Y., Hines A. S., Hirata N., Hirose C., Ho T. -C., Hochheim S., Hofman D., Hohmann J. N., Holcomb D. G., Holland N. A., Hollows I. J., Holmes Z. J., Holt K., Holz D. E., Hong Q., Hough J., Hourihane S., Howell E. J., Hoy C. G., Hoyland D., Hreibi A., Hsieh B. -H., Hsieh H. -F., Hsiung C., Hsu Y., Huang H. -Y., Huang P., Huang Y. -C., Huang Y. -J., Huang Y., Hubner M. T., Huddart A. D., Hughey B., Hui D. C. Y., Hui V., Husa S., Huttner S. H., Huxford R., Huynh-Dinh T., Ide S., Idzkowski B., Iess A., Inayoshi K., Inoue Y., Iosif P., Isi M., Isleif K., Ito K., Itoh Y., Iyer B. R., JaberianHamedan V., Jacqmin T., Jacquet P. -E., Jadhav S. J., Jadhav S. P., Jain T., James A. L., Jan A. Z., Jani K., Janquart J., Janssens K., Janthalur N. N., Jaranowski P., Jariwala D., Jaume R., Jenkins A. C., Jenner K., Jeon C., Jia W., Jiang J., Jin H. -B., Johns G. R., Johnston R., Jones A. W., Jones D. I., Jones P., Jones R., Joshi P., Ju L., Jue A., Jung P., Jung K., Junker J., Juste V., Kaihotsu K., Kajita T., Kakizaki M., Kalaghatgi C. V., Kalogera V., Kamai B., Kamiizumi M., Kanda N., Kandhasamy S., Kang G., Kanner J. B., Kao Y., Kapadia S. J., Kapasi D. P., Karathanasis C., Karki S., Kashyap R., Kasprzack M., Kastaun W., Kato T., Katsanevas S., Katsavounidis E., Katzman W., Kaur T., Kawabe K., Kawaguchi K., Kefelian F., Keitel D., Key J. S., Khadka S., Khalili F. Y., Khan S., Khanam T., Khazanov E. A., Khetan N., Khursheed M., Kijbunchoo N., Kim A., Kim C., Kim J. C., Kim J., Kim K., Kim W. S., Kim Y. -M., Kimball C., Kimura N., Kinley-Hanlon M., Kirchhoff R., Kissel J. S., Klimenko S., Klinger T., Knee A. M., Knowles T. D., Knust N., Knyazev E., Kobayashi Y., Koch P., Koekoek G., Kohri K., Kokeyama K., Koley S., Kolitsidou P., Kolstein M., Komori K., Kondrashov V., Kong A. K. H., Kontos A., Koper N., Korobko M., Kovalam M., Koyama N., Kozak D. B., Kozakai C., Kringel V., Krishnendu N. V., Krolak A., Kuehn G., Kuei F., Kuijer P., Kulkarni S., Kumar A., Kumar P., Kumar R., Kume J., Kuns K., Kuromiya Y., Kuroyanagi S., Kwak K., Lacaille G., Lagabbe P., Laghi D., Lalande E., Lalleman M., Lam T. L., Lamberts A., Landry M., Lane B. B., Lang R. N., Lange J., Lantz B., La Rosa I., Lartaux-Vollard A., Lasky P. D., Laxen M., Lazzarini A., Lazzaro C., Leaci P., Leavey S., LeBohec S., Lecoeuche Y. K., Lee E., Lee H. M., Lee H. W., Lee K., Lee R., Legred I. N., Lehmann J., Lemaitre A., Lenti M., Leonardi M., Leonova E., Leroy N., Letendre N., Levesque C., Levin Y., Leviton J. N., Leyde K., Li A. K. Y., Li B., Li J., Li K. L., Li P., Li T. G. F., Li X., Lin C. -Y., Lin E. T., Lin F. -K., Lin F. -L., Lin H. L., Lin L. C. -C., Linde F., Linker S. D., Linley J. N., Littenberg T. B., Liu G. C., Liu J., Liu K., Liu X., Llamas F., Lo R. K. L., Lo T., London L. T., Longo A., Lopez D., Lopez Portilla M., Lorenzini M., Loriette V., Lormand M., Losurdo G., Lott T. P., Lough J. D., Lousto C. O., Lovelace G., Lucaccioni J. F., Luck H., Lumaca D., Lundgren A. P., Luo L. -W., Lynam J. E., Ma'arif M., Macas R., Machtinger J. B., MacInnis M., Macleod D. M., MacMillan I. A. O., Macquet A., Magana Hernandez I., Magazzu C., Magee R. M., Maggiore R., Magnozzi M., Mahesh S., Majorana E., Maksimovic I., Maliakal S., Malik A., Man N., Mandic V., Mangano V., Mansell G. L., Manske M., Mantovani M., Mapelli M., Marchesoni F., Marin Pina D., Marion F., Mark Z., Marka S., Marka Z., Markakis C., Markosyan A. S., Markowitz A., Maros E., Marquina A., Marsat S., Martelli F., Martin I. W., Martin R. M., Martinez M., Martinez V. A., Martinez V., Martinovic K., Martynov D. V., Marx E. J., Masalehdan H., Mason K., Massera E., Masserot A., Masso-Reid M., Mastrogiovanni S., Matas A., Mateu-Lucena M., Matichard F., Matiushechkina M., Mavalvala N., McCann J. J., McCarthy R., McClelland D. E., McClincy P. K., McCormick S., McCuller L., McGhee G. I., McGuire S. C., McIsaac C., McIver J., McRae T., McWilliams S. T., Meacher D., Mehmet M., Mehta A. K., Meijer Q., Melatos A., Melchor D. A., Mendell G., Menendez-Vazquez A., Menoni C. S., Mercer R. A., Mereni L., Merfeld K., Merilh E. L., Merritt J. D., Merzougui M., Meshkov S., Messenger C., Messick C., Meyers P. M., Meylahn F., Mhaske A., Miani A., Miao H., Michaloliakos I., Michel C., Michimura Y., Middleton H., Mihaylov D. P., Milano L., Miller A. L., Miller A., Miller B., Millhouse M., Mills J. C., Milotti E., Minenkov Y., Mio N., Mir L. M., Miravet-Tenes M., Mishkin A., Mishra C., Mishra T., Mistry T., Mitra S., Mitrofanov V. P., Mitselmakher G., Mittleman R., Miyakawa O., Miyo K., Miyoki S., Mo G., Modafferi L. M., Moguel E., Mogushi K., Mohapatra S. R. P., Mohite S. R., Molina I., Molina-Ruiz M., Mondin M., Montani M., Moore C. J., Moragues J., Moraru D., Morawski F., More A., Moreno C., Moreno G., Mori Y., Morisaki S., Morisue N., Moriwaki Y., Mours B., Mow-Lowry C. M., Mozzon S., Muciaccia F., Mukherjee A., Mukherjee D., Mukherjee S., Mukund N., Mullavey A., Munch J., Muniz E. A., Murray P. G., Musenich R., Muusse S., Nadji S. L., Nagano K., Nagar A., Nakamura K., Nakano H., Nakano M., Nakayama Y., Napolano V., Nardecchia I., Narola H., Naticchioni L., Nayak B., Nayak R. K., Neil B. F., Neilson J., Nelson A., Nelson T. J. N., Nery M., Neubauer P., Neunzert A., Ng K. Y., Ng S. W. S., Nguyen C., Nguyen P., Nguyen T., Nguyen Quynh L., Ni J., Ni W. -T., Nichols S. A., Nishimoto T., Nishizawa A., Nissanke S., Nitoglia E., Nocera F., Norman M., North C., Nozaki S., Nurbek G., Nuttall L. K., Obayashi Y., Oberling J., O'Brien B. D., O'Dell J., Oelker E., Ogaki W., Oganesyan G., Oh J. J., Oh K., Oh S. H., Ohashi M., Ohashi T., Ohkawa M., Ohme F., Ohta H., Okada M. A., Okutani Y., Olivetto C., Oohara K., Oram R., O'Reilly B., Ormiston R. G., Ormsby N. D., O'Shaughnessy R., O'Shea E., Oshino S., Ossokine S., Osthelder C., Otabe S., Ottaway D. J., Overmier H., Pace A. E., Pagano G., Pagano R., Page M. A., Pagliaroli G., Pai A., Pai S. A., Pal S., Palamos J. R., Palashov O., Palomba C., Pan H., Pan K. -C., Panda P. K., Pang P. T. H., Pankow C., Pannarale F., Pant B. C., Panther F. H., Paoletti F., Paoli A., Paolone A., Pappas G., Parisi A., Park H., Park J., Parker W., Pascucci D., Pasqualetti A., Passaquieti R., Passuello D., Patel M., Pathak M., Patricelli B., Patron A. S., Paul S., Payne E., Pedraza M., Pedurand R., Pegoraro M., Pele A., Pena Arellano F. E., Penano S., Penn S., Perego A., Pereira A., Pereira T., Perez C. J., Perigois C., Perkins C. C., Perreca A., Perries S., Pesios D., Petermann J., Petterson D., Pfeiffer H. P., Pham H., Pham K. A., Phukon K. S., Phurailatpam H., Piccinni O. J., Pichot M., Piendibene M., Piergiovanni F., Pierini L., Pierro V., Pillant G., Pillas M., Pilo F., Pinard L., Pineda-Bosque C., Pinto I. M., Pinto M., Piotrzkowski B. J., Piotrzkowski K., Pirello M., Pitkin M. D., Placidi A., Placidi E., Planas M. L., Plastino W., Pluchar C., Poggiani R., Polini E., Pong D. Y. T., Ponrathnam S., Porter E. K., Poulton R., Poverman A., Powell J., Pracchia M., Pradier T., Prajapati A. K., Prasai K., Prasanna R., Pratten G., Principe M., Prodi G. A., Prokhorov L., Prosposito P., Prudenzi L., Puecher A., Punturo M., Puosi F., Puppo P., Purrer M., Qi H., Quartey N., Quetschke V., Quinonez P. J., Quitzow-James R., Raab F. J., Raaijmakers G., Radkins H., Radulesco N., Raffai P., Rail S. X., Raja S., Rajan C., Ramirez K. E., Ramirez T. D., Ramos-Buades A., Rana J., Rapagnani P., Ray A., Raymond V., Raza N., Razzano M., Read J., Rees L. A., Regimbau T., Rei L., Reid S., Reid S. W., Reitze D. H., Relton P., Renzini A., Rettegno P., Revenu B., Reza A., Rezac M., Ricci F., Richards D., Richardson J. W., Richardson L., Riemenschneider G., Riles K., Rinaldi S., Rink K., Robertson N. A., Robie R., Robinet F., Rocchi A., Rodriguez S., Rolland L., Rollins J. G., Romanelli M., Romano R., Romel C. L., Romero A., Romero-Shaw I. M., Romie J. H., Ronchini S., Rosa L., Rose C. A., Rosinska D., Ross M. P., Rowan S., Rowlinson S. J., Roy S., Rozza D., Ruggi P., Ruiz-Rocha K., Ryan K., Sachdev S., Sadecki T., Sadiq J., Saha S., Saito Y., Sakai K., Sakellariadou M., Sakon S., Salafia O. S., Salces-Carcoba F., Salconi L., Saleem M., Salemi F., Samajdar A., Sanchez E. J., Sanchez J. H., Sanchez L. E., Sanchis-Gual N., Sanders J. R., Sanuy A., Saravanan T. R., Sarin N., Sassolas B., Satari H., Sauter O., Savage R. L., Savant V., Sawada T., Sawant H. L., Sayah S., Schaetzl D., Scheel M., Scheuer J., Schiworski M. G., Schmidt P., Schmidt S., Schnabel R., Schneewind M., Schofield R. M. S., Schonbeck A., Schulte B. W., Schutz B. F., Schwartz E., Scott J., Scott S. M., Seglar-Arroyo M., Sekiguchi Y., Sellers D., Sengupta A. S., Sentenac D., Seo E. G., Sequino V., Sergeev A., Setyawati Y., Shaffer T., Shahriar M. S., Shaikh M. A., Shams B., Shao L., Sharma A., Sharma P., Shawhan P., Shcheblanov N. S., Sheela A., Shikano Y., Shikauchi M., Shimizu H., Shimode K., Shinkai H., Shishido T., Shoda A., Shoemaker D. H., Shoemaker D. M., ShyamSundar S., Sieniawska M., Sigg D., Silenzi L., Singer L. P., Singh D., Singh M. K., Singh N., Singha A., Sintes A. M., Sipala V., Skliris V., Slagmolen B. J. J., Slaven-Blair T. J., Smetana J., Smith J. R., Smith L., Smith R. J. E., Soldateschi J., Somala S. N., Somiya K., Song I., Soni K., Soni S., Sordini V., Sorrentino F., Sorrentino N., Soulard R., Souradeep T., Sowell E., Spagnuolo V., Spencer A. P., Spera M., Spinicelli P., Srivastava A. K., Srivastava V., Staats K., Stachie C., Stachurski F., Steer D. A., Steinlechner J., Steinlechner S., Stergioulas N., Stops D. J., Stover M., Strain K. A., Strang L. C., Stratta G., Strong M. D., Strunk A., Sturani R., Stuver A. L., Suchenek M., Sudhagar S., Sudhir V., Sugimoto R., Suh H. G., Sullivan A. G., Summerscales T. Z., Sun L., Sunil S., Sur A., Suresh J., Sutton P. J., Suzuki T., Swinkels B. L., Szczepanczyk M. J., Szewczyk P., Tacca M., Tagoshi H., Tait S. C., Takahashi H., Takahashi R., Takano S., Takeda H., Takeda M., Talbot C. J., Talbot C., Tanaka K., Tanaka T., Tanasijczuk A. J., Tanioka S., Tanner D. B., Tao D., Tao L., Tapia R. D., Tapia San Martin E. N., Taranto C., Taruya A., Tasson J. D., Tenorio R., Terhune J. E. S., Terkowski L., Thirugnanasambandam M. P., Thomas M., Thomas P., Thompson E. E., Thompson J. E., Thondapu S. R., Thorne K. A., Thrane E., Tiwari S., Tiwari V., Toivonen A. M., Tolley A. E., Tomaru T., Tomura T., Tonelli M., Tornasi Z., Torres-Forne A., Torrie C. I., Tosta Melo I. E., Toyra D., Trapananti A., Travasso F., Traylor G., Trevor M., Tringali M. C., Tripathee A., Troiano L., Trovato A., Trozzo L., Trudeau R. J., Tsai D., Tsang K. W., Tsang T., Tsao J. -S., Tse M., Tso R., Tsuchida S., Tsukada L., Tsuna D., Tsutsui T., Turbang K., Turconi M., Tuyenbayev D., Ubhi A. S., Uchiyama T., Udall R. P., Ueda A., Uehara T., Ueno K., Ueshima G., Unnikrishnan C. S., Urban A. L., Ushiba T., Utina A., Vajente G., Vajpeyi A., Valdes G., Valentini M., Valsan V., van Bakel N., van Beuzekom M., van Dael M., van den Brand J. F. J., Van Den Broeck C., Vander-Hyde D. C., van Haevermaet H., van Heijningen J. V., van Putten M. H. P. M., van Remortel N., Vardaro M., Vargas A. F., Varma V., Vasuth M., Vecchio A., Vedovato G., Veitch J., Veitch P. J., Venneberg J., Venugopalan G., Verkindt D., Verma P., Verma Y., Vermeulen S. M., Veske D., Vetrano F., Vicere A., Vidyant S., Viets A. D., Vijaykumar A., Villa-Ortega V., Vinet J. -Y., Virtuoso A., Vitale S., Vocca H., von Reis E. R. G., von Wrangel J. S. A., Vorvick C., Vyatchanin S. P., Wade L. E., Wade M., Wagner K. J., Walet R. C., Walker M., Wallace G. S., Wallace L., Wang J., Wang J. Z., Wang W. H., Ward R. L., Warner J., Was M., Washimi T., Washington N. Y., Watchi J., Weaver B., Weaving C. R., Webster S. A., Weinert M., Weinstein A. J., Weiss R., Weller C. M., Weller R. A., Wellmann F., Wen L., Wessels P., Wette K., Whelan J. T., White D. D., Whiting B. F., Whittle C., Wilken D., Williams D., Williams M. J., Williamson A. R., Willis J. L., Willke B., Wilson D. J., Wipf C. C., Wlodarczyk T., Woan G., Woehler J., Wofford J. K., Wong D., Wong I. C. F., Wright M., Wu C., Wu D. S., Wu H., Wysocki D. M., Xiao L., Yamada T., Yamamoto H., Yamamoto K., Yamamoto T., Yamashita K., Yamazaki R., Yang F. W., Yang K. Z., Yang L., Yang Y. -C., Yang Y., Yap M. J., Yeeles D. W., Yeh S. -W., Yelikar A. B., Ying M., Yokoyama J., Yokozawa T., Yoo J., Yoshioka T., Yu H., Yuzurihara H., Zadro¿ny A., Zanolin M., Zeidler S., Zelenova T., Zendri J. -P., Zevin M., Zhan M., Zhang H., Zhang J., Zhang L., Zhang R., Zhang T., Zhang Y., Zhao C., Zhao G., Zhao Y., Zhou R., Zhou Z., Zhu X. J., Zhu Z. -H., Zimmerman A. B., Zucker M. E., and Zweizig J.
Abstract: We present Fermi Gamma-ray Burst Monitor (Fermi-GBM) and Swift Burst Alert Telescope (Swift-BAT) searches for gamma-ray/X-ray counterparts to gravitational-wave (GW) candidate events identified during the third observing run of the Advanced LIGO and Advanced Virgo detectors. Using Fermi-GBM onboard triggers and subthreshold gamma-ray burst (GRB) candidates found in the Fermi-GBM ground analyses, the Targeted Search and the Untargeted Search, we investigate whether there are any coincident GRBs associated with the GWs. We also search the Swift-BAT rate data around the GW times to determine whether a GRB counterpart is present. No counterparts are found. Using both the Fermi-GBM Targeted Search and the Swift- BAT search, we calculate flux upper limits and present joint upper limits on the gamma-ray luminosity of each GW. Given these limits, we constrain theoretical models for the emission of gamma rays from binary black hole mergers.
Published: 2024

50. Panning for gold with the Neil Gehrels Swift Observatory: an optimal strategy for finding the counterparts to gravitational wave events.

Author: Eyles-Ferris, R A J, Evans, P A, Breeveld, A A, Cenko, S B, Dichiara, S, Kennea, J A, Klingler, N J, Kuin, N P M, Marshall, F E, Oates, S R, Page, M J, Raman, G, Ronchini, S, Siegel, M H, Tohuvavohu, A, Campana, S, D'Elia, V, Hartmann, D H, Osborne, J P, and Page, K L
Subjects: GRAVITATIONAL waves, OPTICAL telescopes, X-ray telescopes, STELLAR mergers, NEUTRON stars, GAMMA ray bursts
Abstract: The LIGO, Virgo, and KAGRA (LVK) gravitational wave observatories are currently undertaking their O4 observing run offering the opportunity to discover new electromagnetic counterparts to gravitational wave events. We examine the capability of the Neil Gehrels Swift Observatory (Swift) to respond to these triggers, primarily binary neutron star mergers, with both the UV/Optical Telescope (UVOT) and the X-ray Telescope (XRT). We simulate Swift 's response to a trigger under different strategies using model skymaps, convolving these with the 2MPZ catalogue to produce an ordered list of observing fields, deriving the time taken for Swift to reach the correct field and simulating the instrumental responses to modelled kilonovae and short gamma-ray burst afterglows. We find that UVOT, using the u filter with an exposure time of order 120 s, is optimal for most follow-up observations and that we are likely to detect counterparts in |$\sim 6$| per cent of all binary neutron star triggers detectable by LVK in O4. We find that the gravitational wave 90 per cent error area and measured distance to the trigger allow us to select optimal triggers to follow-up. Focussing on sources less than 300 Mpc away, or 500 Mpc if the error area is less than a few hundred square degrees, distances greater than previously assumed, offer the best opportunity for discovery by Swift with |$\sim 5\!-\!30$| per cent of triggers having detection probabilities |$\ge 0.5$|⁠. At even greater distances, we can further optimise our follow-up by adopting a longer 250 s or 500 s exposure time. [ABSTRACT FROM AUTHOR]
Published: 2025
Full Text: View/download PDF

Catalog

Books, media, physical & digital resources

See catalog results

Searchworks

Select search scope, currently: Articles Catalog books, media & more in Jio Institute collections Articles journal articles & other e-resources

Search

Search Constraints

Refine your results

Search Limiters

Topic

Publication Year Range

Language

Publication Type

Journal

Database

Publisher

299 results on '"Tohuvavohu A"'

Search Results

Catalog

Select search scope, currently: Articles

Catalog

books, media & more in Jio Institute collections

Articles

journal articles & other e-resources