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1. Two Warm, Low-density Sub-Jovian Planets Orbiting Bright Stars in K2 Campaigns 13 and 14

Author

Yu, Liang, Rodriguez, Joseph E, Eastman, Jason D, Crossfield, Ian JM, Shporer, Avi, Gaudi, B Scott, Burt, Jennifer, Fulton, Benjamin J, Sinukoff, Evan, Howard, Andrew W, Isaacson, Howard, Kosiarek, Molly R, Ciardi, David R, Schlieder, Joshua E, Penev, Kaloyan, Vanderburg, Andrew, Stassun, Keivan G, Bieryla, Allyson, Butler, R Paul, Berlind, Perry, Calkins, Michael L, Esquerdo, Gilbert A, Latham, David W, Murawski, Gabriel, Stevens, Daniel J, Petigura, Erik A, Kreidberg, Laura, and Bristow, Makennah

Subjects
planetary systems, stars: individual, techniques: photometric, techniques: spectroscopic, astro-ph.EP, Astronomical and Space Sciences, Astronomy & Astrophysics
Abstract

We report the discovery of two planets transiting the bright stars HD 89345 (EPIC 248777106, V = 9.376, K = 7.721) in K2 Campaign 14 and HD 286123 (EPIC 247098361, V = 9.822, K = 8.434) in K2 Campaign 13. Both stars are G-Type stars, one of which is at or near the end of its main-sequence lifetime, and the other is just over halfway through its main-sequence lifetime. HD 89345 hosts a warm sub-Saturn (0.66 , 0.11 , = 1100 K) in an 11.81 day orbit. The planet is similar in size to WASP-107b, which falls in the transition region between ice giants and gas giants. HD 286123 hosts a Jupiter-sized, low-mass planet (1.06 , 0.39 , = 1000 K) in an 11.17 day, mildly eccentric orbit, with e = 0.255 ± 0.035. Given that they orbit relatively evolved main-sequence stars and have orbital periods longer than 10 days, these planets are interesting candidates for studies of gas planet evolution, migration, and (potentially) reinflation. Both planets have spent their entire lifetimes near the proposed stellar irradiation threshold at which giant planets become inflated, and neither shows any sign of radius inflation. They probe the regime where inflation begins to become noticeable and are valuable in constraining planet inflation models. In addition, the brightness of the host stars, combined with large atmospheric scale heights of the planets, makes these two systems favorable targets for transit spectroscopy to study their atmospheres and perhaps provide insight into the physical mechanisms that lead to inflated hot Jupiters.

Published
2018

2. Sloan Digital Sky Survey IV: Mapping the Milky Way, Nearby Galaxies, and the Distant Universe

Author

Blanton, Michael R, Bershady, Matthew A, Abolfathi, Bela, Albareti, Franco D, Prieto, Carlos Allende, Almeida, Andres, Alonso-García, Javier, Anders, Friedrich, Anderson, Scott F, Andrews, Brett, Aquino-Ortíz, Erik, Aragón-Salamanca, Alfonso, Argudo-Fernández, Maria, Armengaud, Eric, Aubourg, Eric, Avila-Reese, Vladimir, Badenes, Carles, Bailey, Stephen, Barger, Kathleen A, Barrera-Ballesteros, Jorge, Bartosz, Curtis, Bates, Dominic, Baumgarten, Falk, Bautista, Julian, Beaton, Rachael, Beers, Timothy C, Belfiore, Francesco, Bender, Chad F, Berlind, Andreas A, Bernardi, Mariangela, Beutler, Florian, Bird, Jonathan C, Bizyaev, Dmitry, Blanc, Guillermo A, Blomqvist, Michael, Bolton, Adam S, Boquien, Médéric, Borissova, Jura, van den Bosch, Remco, Bovy, Jo, Brandt, William N, Brinkmann, Jonathan, Brownstein, Joel R, Bundy, Kevin, Burgasser, Adam J, Burtin, Etienne, Busca, Nicolás G, Cappellari, Michele, Carigi, Maria Leticia Delgado, Carlberg, Joleen K, Rosell, Aurelio Carnero, Carrera, Ricardo, Chanover, Nancy J, Cherinka, Brian, Cheung, Edmond, Chew, Yilen Gómez Maqueo, Chiappini, Cristina, Choi, Peter Doohyun, Chojnowski, Drew, Chuang, Chia-Hsun, Chung, Haeun, Cirolini, Rafael Fernando, Clerc, Nicolas, Cohen, Roger E, Comparat, Johan, da Costa, Luiz, Cousinou, Marie-Claude, Covey, Kevin, Crane, Jeffrey D, Croft, Rupert AC, Cruz-Gonzalez, Irene, Cuadra, Daniel Garrido, Cunha, Katia, Damke, Guillermo J, Darling, Jeremy, Davies, Roger, Dawson, Kyle, de la Macorra, Axel, Dell’Agli, Flavia, De Lee, Nathan, Delubac, Timothée, Di Mille, Francesco, Diamond-Stanic, Aleks, Cano-Díaz, Mariana, Donor, John, Downes, Juan José, Drory, Niv, du Mas des Bourboux, Hélion, Duckworth, Christopher J, Dwelly, Tom, Dyer, Jamie, Ebelke, Garrett, Eigenbrot, Arthur D, Eisenstein, Daniel J, Emsellem, Eric, Eracleous, Mike, Escoffier, Stephanie, Evans, Michael L, Fan, Xiaohui, and Fernández-Alvar, Emma

Subjects
Space Sciences, Astronomical Sciences, Physical Sciences, cosmology: observations, galaxies: general, Galaxy: general, instrumentation: spectrographs, stars: general, surveys, astro-ph.GA, Astronomical and Space Sciences, Astronomy & Astrophysics, Astronomical sciences, Particle and high energy physics
Abstract

We describe the Sloan Digital Sky Survey IV (SDSS-IV), a project encompassing three major spectroscopic programs. The Apache Point Observatory Galactic Evolution Experiment 2 (APOGEE-2) is observing hundreds of thousands of Milky Way stars at high resolution and high signal-to-noise ratios in the near-infrared. The Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey is obtaining spatially resolved spectroscopy for thousands of nearby galaxies (median z ∼ 0.03). The extended Baryon Oscillation Spectroscopic Survey (eBOSS) is mapping the galaxy, quasar, and neutral gas distributions between z ~ 0.6 and 3.5 to constrain cosmology using baryon acoustic oscillations, redshift space distortions, and the shape of the power spectrum. Within eBOSS, we are conducting two major subprograms: the SPectroscopic IDentification of eROSITA Sources (SPIDERS), investigating X-ray AGNs and galaxies in X-ray clusters, and the Time Domain Spectroscopic Survey (TDSS), obtaining spectra of variable sources. All programs use the 2.5 m Sloan Foundation Telescope at the Apache Point Observatory; observations there began in Summer 2014. APOGEE-2 also operates a second near-infrared spectrograph at the 2.5 m du Pont Telescope at Las Campanas Observatory, with observations beginning in early 2017. Observations at both facilities are scheduled to continue through 2020. In keeping with previous SDSS policy, SDSS-IV provides regularly scheduled public data releases; the first one, Data Release 13, was made available in 2016 July.

Published
2017

3. THE SDSS-IV EXTENDED BARYON OSCILLATION SPECTROSCOPIC SURVEY: OVERVIEW AND EARLY DATA

Author

Dawson, Kyle S, Kneib, Jean-Paul, Percival, Will J, Alam, Shadab, Albareti, Franco D, Anderson, Scott F, Armengaud, Eric, Aubourg, Éric, Bailey, Stephen, Bautista, Julian E, Berlind, Andreas A, Bershady, Matthew A, Beutler, Florian, Bizyaev, Dmitry, Blanton, Michael R, Blomqvist, Michael, Bolton, Adam S, Bovy, Jo, Brandt, WN, Brinkmann, Jon, Brownstein, Joel R, Burtin, Etienne, Busca, NG, Cai, Zheng, Chuang, Chia-Hsun, Clerc, Nicolas, Comparat, Johan, Cope, Frances, Croft, Rupert AC, Cruz-Gonzalez, Irene, da Costa, Luiz N, Cousinou, Marie-Claude, Darling, Jeremy, de la Macorra, Axel, de la Torre, Sylvain, Delubac, Timothée, du Mas des Bourboux, Hélion, Dwelly, Tom, Ealet, Anne, Eisenstein, Daniel J, Eracleous, Michael, Escoffier, S, Fan, Xiaohui, Finoguenov, Alexis, Font-Ribera, Andreu, Frinchaboy, Peter, Gaulme, Patrick, Georgakakis, Antonis, Green, Paul, Guo, Hong, Guy, Julien, Ho, Shirley, Holder, Diana, Huehnerhoff, Joe, Hutchinson, Timothy, Jing, Yipeng, Jullo, Eric, Kamble, Vikrant, Kinemuchi, Karen, Kirkby, David, Kitaura, Francisco-Shu, Klaene, Mark A, Laher, Russ R, Lang, Dustin, Laurent, Pierre, Le Goff, Jean-Marc, Li, Cheng, Liang, Yu, Lima, Marcos, Lin, Qiufan, Lin, Weipeng, Lin, Yen-Ting, Long, Daniel C, Lundgren, Britt, MacDonald, Nicholas, Maia, Marcio Antonio Geimba, Malanushenko, Elena, Malanushenko, Viktor, Mariappan, Vivek, McBride, Cameron K, McGreer, Ian D, Ménard, Brice, Merloni, Andrea, Meza, Andres, Montero-Dorta, Antonio D, Muna, Demitri, Myers, Adam D, Nandra, Kirpal, Naugle, Tracy, Newman, Jeffrey A, Noterdaeme, Pasquier, Nugent, Peter, Ogando, Ricardo, Olmstead, Matthew D, Oravetz, Audrey, Oravetz, Daniel J, Padmanabhan, Nikhil, Palanque-Delabrouille, Nathalie, Pan, Kaike, and Parejko, John K

Subjects
Astronomical Sciences, Physical Sciences, cosmology: observations, surveys, astro-ph.CO, Astronomical and Space Sciences, Astronomy & Astrophysics, Astronomical sciences, Particle and high energy physics
Abstract

In a six-year program started in 2014 July, the Extended Baryon Oscillation Spectroscopic Survey (eBOSS) will conduct novel cosmological observations using the BOSS spectrograph at Apache Point Observatory. These observations will be conducted simultaneously with the Time Domain Spectroscopic Survey (TDSS) designed for variability studies and the Spectroscopic Identification of eROSITA Sources (SPIDERS) program designed for studies of X-ray sources. In particular, eBOSS will measure with percent-level precision the distance-redshift relation with baryon acoustic oscillations (BAO) in the clustering of matter. eBOSS will use four different tracers of the underlying matter density field to vastly expand the volume covered by BOSS and map the large-scale-structures over the relatively unconstrained redshift range 0.6 < z < 2.2. Using more than 250,000 new, spectroscopically confirmed luminous red galaxies at a median redshift z = 0.72, we project that eBOSS will yield measurements of the angular diameter distance dA(z) to an accuracy of 1.2% and measurements of H(z) to 2.1% when combined with the z > 0.6 sample of BOSS galaxies. With ∼195,000 new emission line galaxy redshifts, we expect BAO measurements of dA(z) to an accuracy of 3.1% and H(z) to 4.7% at an effective redshift of z = 0.87. A sample of more than 500,000 spectroscopically confirmed quasars will provide the first BAO distance measurements over the redshift range 0.9 < z < 2.2, with expected precision of 2.8% and 4.2% on dA(z) and H(z), respectively. Finally, with 60,000 new quasars and re-observation of 60,000 BOSS quasars, we will obtain new Lyα forest measurements at redshifts z > 2.1; these new data will enhance the precision of dA(z) and H(z) at z > 2.1 by a factor of 1.44 relative to BOSS. Furthermore, eBOSS will provide improved tests of General Relativity on cosmological scales through redshift-space distortion measurements, improved tests for non-Gaussianity in the primordial density field, and new constraints on the summed mass of all neutrino species. Here, we provide an overview of the cosmological goals, spectroscopic target sample, demonstration of spectral quality from early data, and projected cosmological constraints from eBOSS.

Published
2016

4. TESS Spots a Super-puff: The Remarkably Low Density of TOI-1420b

Author

Stephanie Yoshida, Shreyas Vissapragada, David W. Latham, Allyson Bieryla, Daniel P. Thorngren, Jason D. Eastman, Mercedes López-Morales, Khalid Barkaoui, Charles Beichman, Perry Berlind, Lars A. Buchave, Michael L. Calkins, David R. Ciardi, Karen A. Collins, Rosario Cosentino, Ian J. M. Crossfield, Fei Dai, Victoria DiTomasso, Nicholas Dowling, Gilbert A. Esquerdo, Raquel Forés-Toribio, Adriano Ghedina, Maria V. Goliguzova, Eli Golub, Erica J. Gonzales, Ferran Grau Horta, Jesus Higuera, Nora Hoch, Keith Horne, Steve B. Howell, Jon M. Jenkins, Jessica Klusmeyer, Didier Laloum, Jack J. Lissauer, Sarah E. Logsdon, Luca Malavolta, Rachel A. Matson, Elisabeth C. Matthews, Kim K. McLeod, Jennifer V. Medina, Jose A. Muñoz, Hugh P. Osborn, Boris Safonov, Joshua Schlieder, Michael Schmidt, Heidi Schweiker, Sara Seager, Alessandro Sozzetti, Gregor Srdoc, Guđmundur Stefánsson, Ivan A. Strakhov, Stephanie Striegel, Joel Villaseñor, and Joshua N. Winn

Subjects
Exoplanets, Transits, Exoplanet structure, Astronomy, QB1-991
Abstract

We present the discovery of TOI-1420b, an exceptionally low-density ( ρ = 0.08 ± 0.02 g cm ^−3 ) transiting planet in a P = 6.96 days orbit around a late G-dwarf star. Using transit observations from TESS, LCOGT, Observatoire Privé du Mont, Whitin, Wendelstein, OAUV, Ca l’Ou, and KeplerCam, along with radial velocity observations from HARPS-N and NEID, we find that the planet has a radius of R _p = 11.9 ± 0.3 R _⊕ and a mass of M _p = 25.1 ± 3.8 M _⊕ . TOI-1420b is the largest known planet with a mass less than 50 M _⊕ , indicating that it contains a sizeable envelope of hydrogen and helium. We determine TOI-1420b’s envelope mass fraction to be ${f}_{\mathrm{env}}={82}_{-6}^{+7} \% $ , suggesting that runaway gas accretion occurred when its core was at most four to five times the mass of the Earth. TOI-1420b is similar to the planet WASP-107b in mass, radius, density, and orbital period, so a comparison of these two systems may help reveal the origins of close-in low-density planets. With an atmospheric scale height of 1950 km, a transmission spectroscopy metric of 580, and a predicted Rossiter–McLaughlin amplitude of about 17 m s ^−1 , TOI-1420b is an excellent target for future atmospheric and dynamical characterization.

Published
2023
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5. False Planets around Giant Stars: A Case Study of Sanders 364 in M67

Author

Qijia Zhou, David W. Latham, Samuel N. Quinn, Allyson Bieryla, Andrew Vanderburg, Perry Berlind, Michael L. Calkins, and Gilbert A. Esquerdo

Subjects
K giant stars, Exoplanets, Radial velocity, Astronomy, QB1-991
Abstract

Discovering planets in sparsely populated regions of parameter space is crucial to improving our understanding of planetary formation and evolution. One such region is the subset of planets that orbit giant, evolved stars. However, some of these evolved stars are known to exhibit long-period quasiperiodic radial velocity signals, which can masquerade as signals from orbital motion due to planetary companions. In this paper, we investigate the case of Sanders 364, a K giant star in the old open cluster M67. A paper by Brucalassi et al. reports the discovery of a giant planet with a period of 121 days orbiting Sanders 364. From our analysis of a large set of independent radial velocities, we find no convincing evidence for the giant planet reported by Brucalassi et al. We did identify six long-period radial velocity signals of unclear origin, including the 121 days signal reported by Brucalassi et al., but based on our analysis, we speculate that these are quasiperiodic signals that arise from nonplanetary origins, such as stellar variability or aliasing. The results from our study of Sanders 364 suggest that the detection of true orbital motion from a long-period planetary companion requires extra care when the host star is highly evolved. We conclude by offering recommendations for future study of planetary companions around evolved host stars.

Published
2023
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6. Mid-to-late M Dwarfs Lack Jupiter Analogs

Author

Emily K. Pass, Jennifer G. Winters, David Charbonneau, Jonathan M. Irwin, David W. Latham, Perry Berlind, Michael L. Calkins, Gilbert A. Esquerdo, and Jessica Mink

Subjects
Extrasolar gaseous giant planets, M dwarf stars, Radial velocity, Surveys, High resolution spectroscopy, Astronomy, QB1-991
Abstract

Cold Jovian planets play an important role in sculpting the dynamical environment in which inner terrestrial planets form. The core accretion model predicts that giant planets cannot form around low-mass M dwarfs, although this idea has been challenged by recent planet discoveries. Here, we investigate the occurrence rate of giant planets around low-mass (0.1–0.3 M _⊙ ) M dwarfs. We monitor a volume-complete, inactive sample of 200 such stars located within 15 pc, collecting four high-resolution spectra of each M dwarf over six years and performing intensive follow-up monitoring of two candidate radial velocity variables. We use TRES on the 1.5 m telescope at the Fred Lawrence Whipple Observatory and CHIRON on the Cerro Tololo Inter-American Observatory 1.5 m telescope for our primary campaign, and MAROON-X on Gemini-North for high-precision follow up. We place a 95% confidence upper limit of 1.5% (68% confidence limit of 0.57%) on the occurrence of M _P sin i > 1 M _J giant planets out to the water snow line and provide additional constraints on the giant planet population as a function of M _P sin i and period. Beyond the snow line (100 K < T _eq < 150 K), we place 95% confidence upper limits of 1.5%, 1.7%, and 4.4% (68% confidence limits of 0.58%, 0.66%, and 1.7%) for 3 M _J < M _P sin i < 10 M _J , 0.8 M _J < M _P sin i < 3 M _J , and 0.3 M _J < M _P sin i < 0.8 M _J giant planets, respectively; i.e., Jupiter analogs are rare around low-mass M dwarfs. In contrast, surveys of Sun-like stars have found that their giant planets are most common at these Jupiter-like instellations.

Published
2023
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7. Spinning up a Daze: TESS Uncovers a Hot Jupiter Orbiting the Rapid Rotator TOI-778

Author

Jake T. Clark, Brett C. Addison, Jack Okumura, Sydney Vach, Adriana Errico, Alexis Heitzmann, Joseph E. Rodriguez, Duncan J. Wright, Mathieu Clerté, Carolyn J. Brown, Tara Fetherolf, Robert A. Wittenmyer, Peter Plavchan, Stephen R. Kane, Jonathan Horner, John F. Kielkopf, Avi Shporer, C. G. Tinney, Liu Hui-Gen, Sarah Ballard, Brendan P. Bowler, Matthew W. Mengel, George Zhou, Annette S. Lee, Avelyn David, Jessica Heim, Michele E. Lee, Verónica Sevilla, Naqsh E. Zafar, Natalie R. Hinkel, Bridgette E. Allen, Daniel Bayliss, Arthur Berberyan, Perry Berlind, Allyson Bieryla, François Bouchy, Rafael Brahm, Edward M. Bryant, Jessie L. Christiansen, David R. Ciardi, Krys N. Ciardi, Karen A. Collins, Jules Dallant, Allen B. Davis, Matías R. Díaz, Courtney D. Dressing, Gilbert A. Esquerdo, Jan-Vincent Harre, Steve B. Howell, Jon M. Jenkins, Eric L. N. Jensen, Matías I. Jones, Andrés Jordán, David W. Latham, Michael B. Lund, James McCormac, Louise D. Nielsen, Jon Otegi, Samuel N. Quinn, Don J. Radford, George R. Ricker, Richard P. Schwarz, Sara Seager, Alexis M. S. Smith, Chris Stockdale, Thiam-Guan Tan, Stéphane Udry, Roland Vanderspek, Maximilian N. Günther, Songhu Wang, Geof Wingham, and Joshua N. Winn

Subjects
Exoplanets, Radial velocity, Transit photometry, Dynamical evolution, Astronomy, QB1-991
Abstract

NASA’s Transiting Exoplanet Survey Satellite (TESS) mission has been uncovering a growing number of exoplanets orbiting nearby, bright stars. Most exoplanets that have been discovered by TESS orbit narrow-line, slow-rotating stars, facilitating the confirmation and mass determination of these worlds. We present the discovery of a hot Jupiter orbiting a rapidly rotating ( $v\sin \,(i)=35.1\pm 1.0$ km s ^−1 ) early F3V-dwarf, HD 115447 (TOI-778). The transit signal taken from Sectors 10 and 37 of TESS's initial detection of the exoplanet is combined with follow-up ground-based photometry and velocity measurements taken from Minerva -Australis, TRES, CORALIE, and CHIRON to confirm and characterize TOI-778 b. A joint analysis of the light curves and the radial velocity measurements yields a mass, a radius, and an orbital period for TOI-778 b of ${2.76}_{-0.23}^{+0.24}$ M _J , 1.370 ± 0.043 R _J , and ∼4.63 days, respectively. The planet orbits a bright ( V = 9.1 mag) F3-dwarf with M = 1.40 ± 0.05 M _⊙ , R = 1.70 ± 0.05 R _⊙ , and $\mathrm{log}g=4.05\pm 0.17$ . We observed a spectroscopic transit of TOI-778 b, which allowed us to derive a sky-projected spin–orbit angle of 18° ± 11°, consistent with an aligned planetary system. This discovery demonstrates the capability of smaller-aperture telescopes such as Minerva -Australis to detect the radial velocity signals produced by planets orbiting broad-line, rapidly rotating stars.

Published
2023
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8. The K2 and TESS Synergy. II. Revisiting 26 Systems in the TESS Primary Mission

Author

Erica Thygesen, Jessica A. Ranshaw, Joseph E. Rodriguez, Andrew Vanderburg, Samuel N. Quinn, Jason D. Eastman, Allyson Bieryla, David W. Latham, Roland K. Vanderspek, Jon M. Jenkins, Douglas A. Caldwell, Mma Ikwut-Ukwa, Knicole D. Colón, Jessie Dotson, Christina Hedges, Karen A. Collins, Michael L. Calkins, Perry Berlind, and Gilbert A. Esquerdo

Subjects
Exoplanet catalogs, Exoplanet astronomy, Exoplanet systems, Exoplanets, Ephemerides, Astronomy, QB1-991
Abstract

The legacy of NASA’s K2 mission has provided hundreds of transiting exoplanets that can be revisited by new and future facilities for further characterization, with a particular focus on studying the atmospheres of these systems. However, the majority of K2-discovered exoplanets have typical uncertainties on future times of transit within the next decade of greater than 4 hr, making observations less practical for many upcoming facilities. Fortunately, NASA’s Transiting Exoplanet Survey Satellite (TESS) mission is reobserving most of the sky, providing the opportunity to update the ephemerides for ∼300 K2 systems. In the second paper of this series, we reanalyze 26 single-planet, K2-discovered systems that were observed in the TESS primary mission by globally fitting their K2 and TESS light curves (including extended mission data where available), along with any archival radial velocity measurements. As a result of the faintness of the K2 sample, 13 systems studied here do not have transits detectable by TESS. In those cases, we refit the K2 light curve and provide updated system parameters. For the 23 systems with M _* ≳ 0.6 M _⊙ , we determine the host star parameters using a combination of Gaia parallaxes, spectral energy distribution fits, and MESA Isochrones and Stellar Tracks stellar evolution models. Given the expectation of future TESS extended missions, efforts like the K2 and TESS Synergy project will ensure the accessibility of transiting planets for future characterization while leading to a self-consistent catalog of stellar and planetary parameters for future population efforts.

Published
2023
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9. Multiepoch Detections of the Extended Atmosphere and Transmission Spectra of KELT-9b with a 1.5 m Telescope

Author

Nataliea Lowson, George Zhou, Duncan J. Wright, Chelsea X. Huang, João M. Mendonça, Samuel H. C. Cabot, Christa Pudmenzky, Robert A. Wittenmyer, David W. Latham, Allyson Bieryla, Gilbert A. Esquerdo, Perry Berlind, and Michael L. Calkins

Subjects
Exoplanets, Hot Jupiters, Exoplanet atmospheric composition, Exoplanet atmospheric variability, Exoplanet evolution, Astronomy, QB1-991
Abstract

Irradiated Jovian atmospheres are complex and dynamic and can undergo temporal variations due to the close proximity of their parent stars. Of the Jovian planets that have been cataloged to date, KELT-9b is the hottest gas giant known, with an equilibrium temperature of 4050 K. We probe the temporal variability of transmission spectroscopic signatures from KELT-9b via a set of archival multiyear ground-based transit observations, performed with the TRES facility on the 1.5 m reflector at the Fred Lawrence Whipple Observatory. Our observations confirm past detections of Fe i , Fe ii , and Mg i over multiple epochs, in addition to excess absorption at H α , which is an indicator for ongoing mass loss. From our multiyear data set, the H α light curve consistently deviates from a standard transit and follows a “W” shape that is deeper near ingress and egress and shallower midtransit. To search for and quantify any seasonal variations that may be present, we parameterize a “cometary tail” model to fit for the H α transit. We find no detectable variations between the different observed epochs. Though a “cometary tail” describes the H α flux variations well, we note that such a scenario requires a high density of neutral hydrogen in the n = 2 excited state far beyond the planetary atmosphere. Other scenarios, such as center-to-limb variations larger than that expected from 1D atmosphere models, may also contribute to the observed H α transit shape. These multiepoch observations highlight the capabilities of small telescopes to provide temporal monitoring of the dynamics of exoplanet atmospheres.

Published
2023
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10. TESS Spots a Super-puff: The Remarkably Low Density of TOI-1420b

Author

Yoshida, Stephanie, primary, Vissapragada, Shreyas, additional, Latham, David W., additional, Bieryla, Allyson, additional, Thorngren, Daniel P., additional, Eastman, Jason D., additional, López-Morales, Mercedes, additional, Barkaoui, Khalid, additional, Beichman, Charles, additional, Berlind, Perry, additional, Buchave, Lars A., additional, Calkins, Michael L., additional, Ciardi, David R., additional, Collins, Karen A., additional, Cosentino, Rosario, additional, Crossfield, Ian J. M., additional, Dai, Fei, additional, DiTomasso, Victoria, additional, Dowling, Nicholas, additional, Esquerdo, Gilbert A., additional, Forés-Toribio, Raquel, additional, Ghedina, Adriano, additional, Goliguzova, Maria V., additional, Golub, Eli, additional, Gonzales, Erica J., additional, Horta, Ferran Grau, additional, Higuera, Jesus, additional, Hoch, Nora, additional, Horne, Keith, additional, Howell, Steve B., additional, Jenkins, Jon M., additional, Klusmeyer, Jessica, additional, Laloum, Didier, additional, Lissauer, Jack J., additional, Logsdon, Sarah E., additional, Malavolta, Luca, additional, Matson, Rachel A., additional, Matthews, Elisabeth C., additional, McLeod, Kim K., additional, Medina, Jennifer V., additional, Muñoz, Jose A., additional, Osborn, Hugh P., additional, Safonov, Boris, additional, Schlieder, Joshua, additional, Schmidt, Michael, additional, Schweiker, Heidi, additional, Seager, Sara, additional, Sozzetti, Alessandro, additional, Srdoc, Gregor, additional, Stefánsson, Guđmundur, additional, Strakhov, Ivan A., additional, Striegel, Stephanie, additional, Villaseñor, Joel, additional, and Winn, Joshua N., additional

Published
2023
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12. TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Author

Ian Wong, Avi Shporer, George Zhou, Daniel Kitzmann, Thaddeus D. Komacek, Xianyu Tan, René Tronsgaard, Lars A. Buchhave, Shreyas Vissapragada, Michael Greklek-McKeon, Joseph E. Rodriguez, John P. Ahlers, Samuel N. Quinn, Elise Furlan, Steve B. Howell, Allyson Bieryla, Kevin Heng, Heather A. Knutson, Karen A. Collins, Kim K. McLeod, Perry Berlind, Peyton Brown, Michael L. Calkins, Jerome P. de Leon, Emma Esparza-Borges, Gilbert A. Esquerdo, Akihiko Fukui, Tianjun Gan, Eric Girardin, Crystal L. Gnilka, Masahiro Ikoma, Eric L. N. Jensen, John Kielkopf, Takanori Kodama, Seiya Kurita, Kathryn V. Lester, Pablo Lewin, Giuseppe Marino, Felipe Murgas, Norio Narita, Enric Pallé, Richard P. Schwarz, Keivan G. Stassun, Motohide Tamura, Noriharu Watanabe, Björn Benneke, George R. Ricker, David W. Latham, Roland Vanderspek, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Douglas A. Caldwell, William Fong, Chelsea X. Huang, Ismael Mireles, Joshua E. Schlieder, Bernie Shiao, and Jesus Noel Villaseñor

Subjects
Astronomy
Abstract

We report the discovery of an ultrahot Jupiter with an extremely short orbital period of 0.67247414 ± 0.00000028 days (∼16 hr). The 1.347 ± 0.047 RJup planet, initially identified by the Transiting Exoplanet Survey Satellite (TESS) mission, orbits TOI-2109 (TIC 392476080)—a T(eff) ∼ 6500 K F-type star with a mass of 1.447 ± 0.077 Mꙩ, a radius of 1.698 ± 0.060 Rꙩ, and a rotational velocity of v sin i =81.9 ± 1.7 km/s. The planetary nature of TOI-2109b was confirmed through radial-velocity measurements, which yielded a planet mass of 5.02 ± 0.75 M(Jup). Analysis of the Doppler shadow in spectroscopic transit observations indicates a well-aligned system, with a sky-projected obliquity of λ = 1.°7± 1.°7. From the TESS full-orbit light curve, we measured a secondary eclipse depth of 731 ± 46 ppm, as well as phase-curve variations from the planet's longitudinal brightness modulation and ellipsoidal distortion of the host star. Combining the TESS-band occultation measurement with a K(s)-band secondary eclipse depth (2012 ± 80 ppm) derived from ground-based observations, we find that the dayside emission of TOI-2109b is consistent with a brightness temperature of 3631 ± 69 K, making it the second hottest exoplanet hitherto discovered. By virtue of its extreme irradiation and strong planet–star gravitational interaction, TOI-2109b is an exceptionally promising target for intensive follow-up studies using current and near-future telescope facilities to probe for orbital decay, detect tidally driven atmospheric escape, and assess the impacts of H2 dissociation and recombination on the global heat transport.

Published
2021
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13. THE BARYON OSCILLATION SPECTROSCOPIC SURVEY OF SDSS-III

Author

Dawson, Kyle S, Schlegel, David J, Ahn, Christopher P, Anderson, Scott F, Aubourg, Éric, Bailey, Stephen, Barkhouser, Robert H, Bautista, Julian E, Beifiori, Alessandra, Berlind, Andreas A, Bhardwaj, Vaishali, Bizyaev, Dmitry, Blake, Cullen H, Blanton, Michael R, Blomqvist, Michael, Bolton, Adam S, Borde, Arnaud, Bovy, Jo, Brandt, W. N, Brewington, Howard, Brinkmann, Jon, Brown, Peter J, Brownstein, Joel R, Bundy, Kevin, Busca, N. G, Carithers, William, Carnero, Aurelio R, Carr, Michael A, Chen, Yanmei, Comparat, Johan, Connolly, Natalia, Cope, Frances, Croft, Rupert A. C, Cuesta, Antonio J, da Costa, Luiz N, Davenport, James R. A, Delubac, Timothée, de Putter, Roland, Dhital, Saurav, Ealet, Anne, Ebelke, Garrett L, Eisenstein, Daniel J, Escoffier, S., Fan, Xiaohui, Filiz Ak, N., Finley, Hayley, Font-Ribera, Andreu, Génova-Santos, R., Gunn, James E, Guo, Hong, Haggard, Daryl, Hall, Patrick B, Hamilton, Jean-Christophe, Harris, Ben, Harris, David W, Ho, Shirley, Hogg, David W, Holder, Diana, Honscheid, Klaus, Huehnerhoff, Joe, Jordan, Beatrice, Jordan, Wendell P, Kauffmann, Guinevere, Kazin, Eyal A, Kirkby, David, Klaene, Mark A, Kneib, Jean-Paul, Le Goff, Jean-Marc, Lee, Khee-Gan, Long, Daniel C, Loomis, Craig P, Lundgren, Britt, Lupton, Robert H, Maia, Marcio A. G, Makler, Martin, Malanushenko, Elena, Malanushenko, Viktor, Mandelbaum, Rachel, Manera, Marc, Maraston, Claudia, Margala, Daniel, Masters, Karen L, McBride, Cameron K, McDonald, Patrick, McGreer, Ian D, McMahon, Richard G, Mena, Olga, Miralda-Escudé, Jordi, Montero-Dorta, Antonio D, Montesano, Francesco, Muna, Demitri, Myers, Adam D, Naugle, Tracy, Nichol, Robert C, Noterdaeme, Pasquier, Nuza, Sebastián E, Olmstead, Matthew D, Oravetz, Audrey, Oravetz, Daniel J, and Owen, Russell

Published
2013

14. SDSS-III: MASSIVE SPECTROSCOPIC SURVEYS OF THE DISTANT UNIVERSE, THE MILKY WAY, AND EXTRA-SOLAR PLANETARY SYSTEMS

Author

Eisenstein, Daniel J, Weinberg, David H, Agol, Eric, Aihara, Hiroaki, Allende Prieto, Carlos, Anderson, Scott F, Arns, James A, Aubourg, Éric, Bailey, Stephen, Balbinot, Eduardo, Barkhouser, Robert, Beers, Timothy C, Berlind, Andreas A, Bickerton, Steven J, Bizyaev, Dmitry, Blanton, Michael R, Bochanski, John J, Bolton, Adam S, Bosman, Casey T, Bovy, Jo, Brandt, W. N, Breslauer, Ben, Brewington, Howard J, Brinkmann, J., Brown, Peter J, Brownstein, Joel R, Burger, Dan, Busca, Nicolas G, Campbell, Heather, Cargile, Phillip A, Carithers, William C, Carlberg, Joleen K, Carr, Michael A, Chang, Liang, Chen, Yanmei, Chiappini, Cristina, Comparat, Johan, Connolly, Natalia, Cortes, Marina, Croft, Rupert A. C, Cunha, Katia, da Costa, Luiz N, Davenport, James R. A, Dawson, Kyle, De Lee, Nathan, Porto de Mello, Gustavo F, de Simoni, Fernando, Dean, Janice, Dhital, Saurav, Ealet, Anne, Ebelke, Garrett L, Edmondson, Edward M, Eiting, Jacob M, Escoffier, Stephanie, Esposito, Massimiliano, Evans, Michael L, Fan, Xiaohui, Femenía Castellá, Bruno, Dutra Ferreira, Leticia, Fitzgerald, Greg, Fleming, Scott W, Font-Ribera, Andreu, Ford, Eric B, Frinchaboy, Peter M, García Pérez, Ana Elia, Gaudi, B. Scott, Ge, Jian, Ghezzi, Luan, Gillespie, Bruce A, Gilmore, G., Girardi, Léo, Gott, J. Richard, Gould, Andrew, Grebel, Eva K, Gunn, James E, Hamilton, Jean-Christophe, Harding, Paul, Harris, David W, Hawley, Suzanne L, Hearty, Frederick R, Hennawi, Joseph F, González Hernández, Jonay I, Ho, Shirley, Hogg, David W, Holtzman, Jon A, Honscheid, Klaus, Inada, Naohisa, Ivans, Inese I, Jiang, Linhua, Jiang, Peng, Johnson, Jennifer A, Jordan, Cathy, Jordan, Wendell P, Kauffmann, Guinevere, Kazin, Eyal, Kirkby, David, Klaene, Mark A, Knapp, G. R, Kneib, Jean-Paul, and Kochanek, C. S

Published
2011

15. Scaling K2. V. Statistical Validation of 60 New Exoplanets From K2 Campaigns 2–18

Author

Jessie L. Christiansen, Sakhee Bhure, Jon K. Zink, Kevin K. Hardegree-Ullman, Britt Duffy Adkins, Christina Hedges, Timothy D. Morton, Allyson Bieryla, David R. Ciardi, William D. Cochran, Courtney D. Dressing, Mark E. Everett, Howard Isaacson, John H. Livingston, Carl Ziegler, Perry Berlind, Michael L. Calkins, Gilbert A. Esquerdo, David W. Latham, Michael Endl, Phillip J. MacQueen, Benjamin J. Fulton, Lea A. Hirsch, Andrew W. Howard, Lauren M. Weiss, Bridgette E. Allen, Arthur Berberyann, Krys N. Ciardi, Ava Dunlavy, Sofia H. Glassford, Fei Dai, Teruyuki Hirano, Motohide Tamura, Charles Beichman, Erica J. Gonzales, Joshua E. Schlieder, Thomas Barclay, Ian J. M. Crossfield, Emily A. Gilbert, Elisabeth C. Matthews, Steven Giacalone, and Erik A. Petigura

Published
2022
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16. TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite

Author

Rafael Brahm, Louise D. Nielsen, Robert A. Wittenmyer, Songhu Wang, Joseph E. Rodriguez, Néstor Espinoza Perez, Matías I. Jones, Andrés Jordán, Thomas Henning, Melissa J. Hobson, Diana Kossakowski, Felipe Rojas, Paula Sarkis, Martin Schlecker, Trifon Trifonov, Sahar Shahaf, George R Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Brett C. Addison, Gáspár Á. Bakos, Waqas Bhatti, Daniel Bayliss, Perry Berlind, Allyson Bieryla, Francois Bouchy, Brendan P. Bowler, César Briceño, Timothy M. Brown, Edward M. Bryant, Douglas A. Caldwell, David Charbonneau, Karen A. Collins, Allen B. Davis, Gilbert A. Esquerdo, Benjamin J. Fulton, Natalia M. Guerrero, Christopher E. Henze, Aleisha Hogan, Jonathan Horner, Chelsea X. Huang, Jonathan Irwin, Stephen R. Kane, John Kielkopf, Andrew W. Mann, Tsevi Mazeh, James McCormac, Curtis McCully, Matthew W. Mengel, Ismael Mireles, Jack Okumura, Peter Plavchan, Samuel N. Quinn, Markus Rabus, Sophie Saesen, Joshua E. Schlieder, Damien Segransan, Bernie Shiao, Avi Shporer, Robert J. Siverd, Keivan G. Stassun, Vincent Suc, Thiam-Guan Tan, Pascal Torres, Chris G. Tinney, Stephane Udry, Leonardo Vanzi, Michael Vezie, Jose I. Vines, Maja Vuckovic, Duncan J. Wright, Daniel Yahalomi, Abner Zapata, Hui Zhang, and Carl Ziegler

Subjects
Astronomy, Astrophysics
Abstract

We present the discovery of two new 10 day period giant planets from the Transiting Exoplanet Survey Satellite mission, whose masses were precisely determined using a wide diversity of ground-based facilities. TOI-481 b and TOI-892 b have similar radii (0.99 ± 0.01 R(J) and 1.07 ± 0.02 R(J), respectively), and orbital periods (10.3311 days and 10.6266 days, respectively), but significantly different masses (1.53 ± 0.03 M(J) versus 0.95 ± 0.07 M(J), respectively). Both planets orbit metal-rich stars ([Fe/HG] = +0.26 ± 0.05 dex and [Fe/H] = +0.24 ± 0.05 for TOI-481 and TOI-892, respectively) but at different evolutionary stages. TOI-481 is a M(*) = 1.14 ± 0.02 Mꙩ, R(*) = 1.66 ± 0.02 Rꙩ G-type star (T(eff) = 5735 ± 72 K), that with an age of 6.7 Gyr, is in the turn-off point of the main sequence. TOI-892 on the other hand, is a F-type dwarf star (T(eff) = 6261 ± 80 K), which has a mass of M(*) = 1.28 ± 0.03 Mꙩ and a radius of R(*) = 1.39 ± 0.02 Rꙩ. TOI-481 b and TOI-892 b join the scarcely populated region of transiting gas giants with orbital periods longer than 10 days, which is important to constrain theories of the formation and structure of hot Jupiters.

Published
2020
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17. TOI-503: The First Known Brown-dwarf Am-star Binary from the TESS Mission

Author

Jan Subjak, Rishikesh Sharma, Theron W. Carmichael, Marshall C. Johnson, Erica J. Gonzales, Elisabeth Matthews, Henri M. J. Boffin, Rafael Brahm, Priyanka Chaturvedi, Abhijit Chakraborty, David R. Ciardi, Karen A. Collins, Massimiliano Esposito, Malcolm Fridlund, Tianjun Gan, Davide Gandolfi, Rafael A. García, Eike Guenther, Artie Hatzes, David W. Latham, Stéphane Mathis, Savita Mathur, Carina M. Persson, Howard M. Relles, Joshua E Schlieder, Thomas Barclay, Courtney D. Dressing, Ian Crossfield, Andrew W. Howard, Florian Rodler, George Zhou, Samuel N. Quinn, Gilbert A. Esquerdo, Michael L. Calkins, Perry Berlind, Keivan G. Stassun, Martin Blažek, Marek Skarka, Magdalena Spoková, Jirí Zák, Simon Albrecht, Roi Alonso Sobrino, Paul Beck, Juan Cabrera, Ilaria Carleo, William D. Cochran, Szilard Csizmadia, Fei Dai, Hans J. Deeg, Jerome P. de Leon, Philipp Eigmüller, Michael Endl, Anders Erikson, Akihiko Fukui, Iskra Georgieva, Lucía González-Cuesta, Sascha Grziwa, Diego Hidalgo, Teruyuki Hirano, Maria Hjorth, Emil Knudstrup, Judith Korth, Kristine W. F. Lam, John H. Livingston, Mikkel N. Lund, Rafael Luque, Pilar Montanes Rodríguez, Felipe Murgas, Norio Narita, David Nespral, Prajwal Niraula, Grzegorz Nowak, Enric Pallé, Martin Pätzold, Jorge Prieto-Arranz, Heike Rauer, Seth Redfield, Ignasi Ribas, Alexis M. S. Smith, Vincent Van Eylen, and Petr Kabáth

Subjects
Astronomy
Abstract

We report the discovery of an intermediate-mass transiting brown dwarf (BD), TOI-503b, from the TESS mission. TOI-503b is the first BD discovered by TESS, and it has circular orbit around a metallic-line A-type star with a period of P=3.6772±0.0001 days. The light curve from TESS indicates that TOI-503b transits its host star in a grazing manner, which limits the precision with which we measure the BD’s radius R(b) = 1.34(+0.26, -0.15)R(J). We obtained high resolution spectroscopic observations with the FIES, Ondrejov, PARAS, Tautenburg, and TRES spectrographs, and measured the mass of TOI-503b to be M(b)=53.7±1.2 M(J). The host star has a mass of M(*)=1.80±0.06M(ʘ), a radius of R(*)=1.70±0.05R(ʘ), an effective temperature of T(eff)=7650±160 K, and a relatively high metallicity of 0.61±0.07 dex. We used stellar isochrones to derive the age of the system to be ∼180 Myr, which places its age between that of RIK 72b (a ∼10 Myr old BD in the Upper Scorpius stellar association) and AD 3116b (a ∼600 Myr old BD in the Praesepe cluster). Given the difficulty in measuring the tidal interactions between BDs and their host stars, we cannot precisely say whether this BD formed in situ or has had its orbit circularized by its host star over the relatively short age of the system. Instead, we offer an examination of plausible values for the tidal quality factor for the star and BD. TOI-503b joins a growing number of known short-period, intermediate-mass BDs orbiting main sequence stars, and is the second such BD known to transit an A star, after HATS-70b. With the growth in the population in this regime, the driest region in the BD desert (35–55M(J) sin i) is reforesting.

Published
2020
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18. Diving Beneath the Sea of Stellar Activity: Chromatic Radial Velocities of the Young AU Mic Planetary System

Author

Bryson L. Cale, Michael Reefe, Peter Plavchan, Angelle Tanner, Eric Gaidos, Jonathan Gagné, Peter Gao, Stephen R. Kane, Víctor J. S. Béjar, Nicolas Lodieu, Guillem Anglada-Escudé, Ignasi Ribas, Enric Pallé, Andreas Quirrenbach, Pedro J. Amado, Ansgar Reiners, José A. Caballero, María Rosa Zapatero Osorio, Stefan Dreizler, Andrew W. Howard, Benjamin J. Fulton, Sharon Xuesong Wang, Kevin I. Collins, Mohammed El Mufti, Justin Wittrock, Emily A. Gilbert, Thomas Barclay, Baptiste Klein, Eder Martioli, Robert Wittenmyer, Duncan Wright, Brett Addison, Teruyuki Hirano, Motohide Tamura, Takayuki Kotani, Norio Narita, David Vermilion, Rena A. Lee, Claire Geneser, Johanna Teske, Samuel N. Quinn, David W. Latham, Gilbert A. Esquerdo, Michael L. Calkins, Perry Berlind, Farzaneh Zohrabi, Caitlin Stibbards, Srihan Kotnana, Jon Jenkins, Joseph D. Twicken, Christopher Henze, Richard Kidwell, Christopher Burke, Joel Villaseñor, and Patricia Boyd

Published
2021
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19. Spinning up a Daze: TESS Uncovers a Hot Jupiter Orbiting the Rapid Rotator TOI-778

Author

Clark, Jake T., primary, Addison, Brett C., additional, Okumura, Jack, additional, Vach, Sydney, additional, Errico, Adriana, additional, Heitzmann, Alexis, additional, Rodriguez, Joseph E., additional, Wright, Duncan J., additional, Clerté, Mathieu, additional, Brown, Carolyn J., additional, Fetherolf, Tara, additional, Wittenmyer, Robert A., additional, Plavchan, Peter, additional, Kane, Stephen R., additional, Horner, Jonathan, additional, Kielkopf, John F., additional, Shporer, Avi, additional, Tinney, C. G., additional, Hui-Gen, Liu, additional, Ballard, Sarah, additional, Bowler, Brendan P., additional, Mengel, Matthew W., additional, Zhou, George, additional, Lee, Annette S., additional, David, Avelyn, additional, Heim, Jessica, additional, Lee, Michele E., additional, Sevilla, Verónica, additional, Zafar, Naqsh E., additional, Hinkel, Natalie R., additional, Allen, Bridgette E., additional, Bayliss, Daniel, additional, Berberyan, Arthur, additional, Berlind, Perry, additional, Bieryla, Allyson, additional, Bouchy, François, additional, Brahm, Rafael, additional, Bryant, Edward M., additional, Christiansen, Jessie L., additional, Ciardi, David R., additional, Ciardi, Krys N., additional, Collins, Karen A., additional, Dallant, Jules, additional, Davis, Allen B., additional, Díaz, Matías R., additional, Dressing, Courtney D., additional, Esquerdo, Gilbert A., additional, Harre, Jan-Vincent, additional, Howell, Steve B., additional, Jenkins, Jon M., additional, Jensen, Eric L. N., additional, Jones, Matías I., additional, Jordán, Andrés, additional, Latham, David W., additional, Lund, Michael B., additional, McCormac, James, additional, Nielsen, Louise D., additional, Otegi, Jon, additional, Quinn, Samuel N., additional, Radford, Don J., additional, Ricker, George R., additional, Schwarz, Richard P., additional, Seager, Sara, additional, Smith, Alexis M. S., additional, Stockdale, Chris, additional, Tan, Thiam-Guan, additional, Udry, Stéphane, additional, Vanderspek, Roland, additional, Günther, Maximilian N., additional, Wang, Songhu, additional, Wingham, Geof, additional, and Winn, Joshua N., additional

Published
2023
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20. The K2 and TESS Synergy. II. Revisiting 26 Systems in the TESS Primary Mission

Author

Thygesen, Erica, primary, Ranshaw, Jessica A., additional, Rodriguez, Joseph E., additional, Vanderburg, Andrew, additional, Quinn, Samuel N., additional, Eastman, Jason D., additional, Bieryla, Allyson, additional, Latham, David W., additional, Vanderspek, Roland K., additional, Jenkins, Jon M., additional, Caldwell, Douglas A., additional, Ikwut-Ukwa, Mma, additional, Colón, Knicole D., additional, Dotson, Jessie, additional, Hedges, Christina, additional, Collins, Karen A., additional, Calkins, Michael L., additional, Berlind, Perry, additional, and Esquerdo, Gilbert A., additional

Published
2023
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21. Multiepoch Detections of the Extended Atmosphere and Transmission Spectra of KELT-9b with a 1.5 m Telescope

Author

Lowson, Nataliea, primary, Zhou, George, additional, Wright, Duncan J., additional, Huang, Chelsea X., additional, Mendonça, João M., additional, Cabot, Samuel H. C., additional, Pudmenzky, Christa, additional, Wittenmyer, Robert A., additional, Latham, David W., additional, Bieryla, Allyson, additional, Esquerdo, Gilbert A., additional, Berlind, Perry, additional, and Calkins, Michael L., additional

Published
2023
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22. KELT-24b: A 5M(J) Planet on a 5.6 day Well-aligned Orbit around the Young V=8.3 F-star HD 93148

Author

Joseph E. Rodriguez, Jason D. Eastman, George Zhou, Samuel N. Quinn, Thomas G. Beatty, Kaloyan Penev, Marshall C. Johnson, Phillip A. Cargile, David W. Latham, Allyson Bieryla, Karen A. Collins, Courtney Dressing, David R Ciardi, Howard M. Relles, Gabriel Murawski, Taku Nishiumi, Atsunori Yonehara, Ryo Ishimaru, Fumi Yoshida, Joao Gregorio, Michael B. Lund, Daniel J. Stevens, Keivan G. Stassun, B. Scott Gaudi, Knicole Colon, Joshua Pepper, Norio Narita, Supachai Awiphan, Pongpichit Chuanraksasat, Paul Benni, Roberto Zambelli, Lehman H. Garrison, Maurice L. Wilson, Matthew A. Cornachione, Sharon X. Wang, Jonathan Labadie-Bartz, Romy Rodríguez, Robert J. Siverd, Xinyu Yao, Daniel Bayliss, Perry Berlind, Michael L. Calkins, Jessie L. Christiansen, David H Cohen, Dennis M. Conti, Ivan A. Curtis, D. L. Depoy, Gilbert A. Esquerdo, Phil Evans35, Dax Feliz, Benjamin J Fulton, Thomas W.-S. Holoien, David J. James, Tharindu Jayasinghe, Hannah Jang-condell, Eric L. N. Jensen, John A. Johnson, Michael D. Joner, Somayeh Khakpash, John F. Kielkopf, Rudolf B. Kuhn, Mark Manner, Jennifer L. Marshall, Kim K. McLeod, Nate McCrady, Thomas E. Oberst, Ryan J. Oelkers, Matthew T. Penny, Phillip A. Reed, David H. Sliski, B. J. Shappee, Denise C. Stephens, Chris Stockdale, Thiam-Guan Tan, Mark Trueblood, Pat Trueblood, Steven Villanueva Jr, Robert A. Wittenmyer, and Jason T. Wright

Subjects
Astronomy
Abstract

We present the discovery of KELT-24 b, a massive hot Jupiter orbiting a bright (V=8.3 mag, K=7.2 mag) young F-star with a period of 5.6 days. The host star, KELT-24 (HD 93148), has a Teff=-+65094950K, a mass of M*=+1.4600.0590.055Me, a radius of R*=1.506±0.022Re, and an age of +0.780.420.61Gyr. Its planetary companion (KELT-24 b) has a radius of RP=1.272±0.021RJ and a mass of MP=-+5.180.220.21MJ, and from Doppler tomographic observations, we find that the planet’s orbit is well aligned to its host star’s projected spin axis (l=-+2.63.65.1). The young age estimated for KELT-24 suggests that it only recently started to evolve from the zero-age main sequence. KELT-24 is the brightest star known to host a transiting giant planet with a period between 5 and 10 days. Although the circularization timescale is much longer than the age of the system, we do not detect a large eccentricity or significant misalignment that is expected from dynamical migration. The brightness of its host star and its moderate surface gravity make KELT-24b an intriguing target for detailed atmospheric characterization through spectroscopic emission measurements since it would bridge the current literature results that have primarily focused on lower mass hot Jupiters and a few brown dwarfs.

Published
2019
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23. Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M-dwarf System at 6.9 pc

Author

Jennifer G. Winters, Amber A. Medina, Jonathan M. Irwin, David Charbonneau, Nicola Astudillo-Defru, Elliott P. Horch, Jason D. Eastman, Eliot Halley Vrijmoet, Todd J. Henry, Hannah Diamond-Lowe, Elaine Winston, Thomas Barclay, Xavier Bonfils, George R Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Joshua N. Winn, Jon M Jenkins, Stéphane Udry, Joseph D Twicken, Johanna K. Teske, Peter Gregory Tenenbaum, Francesco Pepe, Felipe Murgas, Philip S. Muirhead, Jessica Mink, Christophe Lovis, Alan M. Levine, Sébastien Lépine, Wei-Chun Jao, Christopher E. Henze, Gábor Furész, Thierry Forveille, Pedro Figueira, Gilbert A. Esquerdo, Courtney D. Dressing, Rodrigo F. Díaz, Xavier Delfosse, Christopher J Burke, François Bouchy, Perry Berlind, and Jose-Manuel Almenara

Subjects
Astronomy
Abstract

We present the discovery from Transiting Exoplanet Survey Satellite (TESS) data of LTT 1445Ab. At a distance of 6.9 pc, it is the second nearest transiting exoplanet system found to date, and the closest one known for which the primary is an M dwarf. The host stellar system consists of three mid-to-late M dwarfs in a hierarchical configuration, which are blended in one TESS pixel. We use MEarth data and results from the Science Processing Operations Center data validation report to determine that the planet transits the primary star in the system. The planet has a radius of {1.38}_{-0.12}^{+0.13} {R}_{\oplus }, an orbital period of {5.35882}_{-0.00031}^{+0.00030} days, and an equilibrium temperature of {433}_{-27}^{+28} K. With radial velocities from the High Accuracy Radial Velocity Planet Searcher, we place a 3σ upper mass limit of 8.4 {M}_{\oplus } on the planet. LTT 1445Ab provides one of the best opportunities to date for the spectroscopic study of the atmosphere of a terrestrial world. We also present a detailed characterization of the host stellar system. We use high-resolution spectroscopy and imaging to rule out the presence of any other close stellar or brown dwarf companions. Nineteen years of photometric monitoring of A and BC indicate a moderate amount of variability, in agreement with that observed in the TESS light-curve data. We derive a preliminary astrometric orbit for the BC pair that reveals an edge-on and eccentric configuration. The presence of a transiting planet in this system hints that the entire system may be co-planar, implying that the system may have formed from the early fragmentation of an individual protostellar core.

Published
2019
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24. An Eccentric Massive Jupiter Orbiting a Subgiant on a 9.5-day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images

Author

Joseph E. Rodriguez, Samuel N. Quinn, Chelsea X. Huang, Andrew Vanderburg, Kaloyan Penev, Rafael Brahm, Andres Jordan, Mma Ikwut Ukwa, Shelly Tsirulik, David W. Latham, Keivan G. Stassun, Avi Shporer, Carl Ziegler, Elisabeth Matthews, Jason D. Eastman, B. Scott Gaudi, Karen A. Collins, Natalia Guerrero, Howard M. Relles, Thomas Barclay, Natalie M. Batalha, Perry Berlind, Allyson Bieryla, L. G. Bouma, Patricia T Boyd, Jennifer Burt, Michael L. Calkins, Jessie Christiansen, David R. Ciardi, Knicole D Colon, Dennis M. Conti, Ian J. M. Crossfield, Tansu Daylan, Jason Dittmann, Diana Dragomir, Scott Dynes, Nestor Espinoza, Gilbert A. Esquerdo, Zahra Essack, Aylin Garcia Soto, Ana Glidden, Maximilian N. Gunther, Thomas Henning, Jon M Jenkins, John F. Kielkopf, Akshata Krishnamurthy, Nicholas M. Law, Alan M. Levine, Pablo Lewin, Andrew W. Mann, Edward H. Morgan, Robert L Morris, Ryan J. Oelkers, Martin Paegert, Joshua Pepper, Elisa V Quintana, George R. Ricker, Pamela Rowden, Sara Seager, Paula Sarkis, Joshua E Schlieder, Lizhou Sha, Andrei Tokovinin, Guillermo Torres, Roland K. Vanderspek, Steven Villanueva Jr, Jesus Noel Villasenor, Joshua N. Winn, Bill Wohler, Ian Wong, Daniel A. Yahalomi, Liang Yu, Zhuchang Zhan, and George Zhou

Subjects
Astronomy
Abstract

We report the discovery of TOI-172 b from the Transiting Exoplanet Survey Satellite (TESS) mission, a massive hot Jupiter transiting a slightly evolved G star with a 9.48-day orbital period. This is the first planet to be confirmed from analysis of only the TESS full frame images, because the host star was not chosen as a two-minute cadence target. From a global analysis of the TESS photometry and follow-up observations carried out by the TESS Follow-up Observing Program Working Group, TOI-172 (TIC 29857954) is a slightly evolved star with an effective temperature of T(eff) = 5645 ± 50 K, a mass of M(⋆) =1.128(sub -0.061, sup +0.065) M(☉), radius of R(⋆) =1.777(sub -0.044, sup +0.047) R(☉), a surface gravity of log g(⋆) =3.993(sub -0.028, sup +0.027), and an age of 7.4(sub -1.5, sup +1.6) Gyr. Its planetary companion (TOI-172 b) has a radius of R(P) =0.965(sub -0.029, sup +0.032) R(J), a mass of M(P) =5.42(sub -0.20, sup +0.22) M(J), and is on an eccentric orbit (e=0.3806(sub -0.0090, sup +0.0093)). TOI-172 b is one of the few known massive giant planets on a highly eccentric short-period orbit. Future study of the atmosphere of this planet and its system architecture offer opportunities to understand the formation and evolution of similar systems.

Published
2019
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25. TESS Hunt for Young and Maturing Exoplanets (THYME). III. A Two-planet System in the 400 Myr Ursa Major Group

Author

Andrew W. Mann, Marshall C. Johnson, Andrew Vanderburg, Adam L. Kraus, Aaron C. Rizzuto, Mackenna L. Wood, Jonathan L. Bush, Keighley Rockcliffe, Elisabeth R. Newton, David W. Latham, Eric E. Mamajek, George Zhou, Samuel N. Quinn, Pa Chia Thao, Serena Benatti, Rosario Cosentino, Silvano Desidera, Avet Harutyunyan, Christophe Lovis, Annelies Mortier, Francesco A. Pepe, Ennio Poretti, Thomas G. Wilson, Martti H. Kristiansen, Robert Gagliano, Thomas Jacobs, Daryll M. LaCourse, Mark Omohundro, Hans Martin Schwengeler, Ivan A. Terentev, Stephen R. Kane, Michelle L. Hill, Markus Rabus, Gilbert A. Esquerdo, Perry Berlind, Karen A. Collins, Gabriel Murawski, Nezar Hazam Sallam, Michael M. Aitken, Bob Massey, George R. Ricker, Roland Vanderspek, Sara Seager, Joshua N. Winn, Jon M. Jenkins, Thomas Barclay, Douglas A. Caldwell, Diana Dragomir, John P. Doty, Ana Glidden, Peter Tenenbaum, Guillermo Torres, Joseph D. Twicken, and Steven Villanueva Jr

Published
2020
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26. Scaling K2. V. Statistical Validation of 60 New Exoplanets From K2 Campaigns 2–18

Author

Christiansen, Jessie L., primary, Bhure, Sakhee, additional, Zink, Jon K., additional, Hardegree-Ullman, Kevin K., additional, Adkins, Britt Duffy, additional, Hedges, Christina, additional, Morton, Timothy D., additional, Bieryla, Allyson, additional, Ciardi, David R., additional, Cochran, William D., additional, Dressing, Courtney D., additional, Everett, Mark E., additional, Isaacson, Howard, additional, Livingston, John H., additional, Ziegler, Carl, additional, Berlind, Perry, additional, Calkins, Michael L., additional, Esquerdo, Gilbert A., additional, Latham, David W., additional, Endl, Michael, additional, MacQueen, Phillip J., additional, Fulton, Benjamin J., additional, Hirsch, Lea A., additional, Howard, Andrew W., additional, Weiss, Lauren M., additional, Allen, Bridgette E., additional, Berberyann, Arthur, additional, Ciardi, Krys N., additional, Dunlavy, Ava, additional, Glassford, Sofia H., additional, Dai, Fei, additional, Hirano, Teruyuki, additional, Tamura, Motohide, additional, Beichman, Charles, additional, Gonzales, Erica J., additional, Schlieder, Joshua E., additional, Barclay, Thomas, additional, Crossfield, Ian J. M., additional, Gilbert, Emily A., additional, Matthews, Elisabeth C., additional, Giacalone, Steven, additional, and Petigura, Erik A., additional

Published
2022
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27. An Aligned Orbit for the Young Planet V1298 Tau b

Author

Johnson, Marshall C., primary, David, Trevor J., additional, Petigura, Erik A., additional, Isaacson, Howard T., additional, Van Zandt, Judah, additional, Ilyin, Ilya, additional, Strassmeier, Klaus, additional, Mallonn, Matthias, additional, Zhou, George, additional, Mann, Andrew W., additional, Livingston, John H., additional, Luger, Rodrigo, additional, Dai, Fei, additional, Weiss, Lauren M., additional, Močnik, Teo, additional, Giacalone, Steven, additional, Hill, Michelle L., additional, Rice, Malena, additional, Blunt, Sarah, additional, Rubenzahl, Ryan, additional, Dalba, Paul A., additional, Esquerdo, Gilbert A., additional, Berlind, Perry, additional, Calkins, Michael L., additional, and Foreman-Mackey, Daniel, additional

Published
2022
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28. A Possible Alignment Between the Orbits of Planetary Systems and their Visual Binary Companions

Author

Christian, Sam, primary, Vanderburg, Andrew, additional, Becker, Juliette, additional, Yahalomi, Daniel A., additional, Pearce, Logan, additional, Zhou, George, additional, Collins, Karen A., additional, Kraus, Adam L., additional, Stassun, Keivan G., additional, de Beurs, Zoe, additional, Ricker, George R., additional, Vanderspek, Roland K., additional, Latham, David W., additional, Winn, Joshua N., additional, Seager, S., additional, Jenkins, Jon M., additional, Abe, Lyu, additional, Agabi, Karim, additional, Amado, Pedro J., additional, Baker, David, additional, Barkaoui, Khalid, additional, Benkhaldoun, Zouhair, additional, Benni, Paul, additional, Berberian, John, additional, Berlind, Perry, additional, Bieryla, Allyson, additional, Esparza-Borges, Emma, additional, Bowen, Michael, additional, Brown, Peyton, additional, Buchhave, Lars A., additional, Burke, Christopher J., additional, Buttu, Marco, additional, Cadieux, Charles, additional, Caldwell, Douglas A., additional, Charbonneau, David, additional, Chazov, Nikita, additional, Chimaladinne, Sudhish, additional, Collins, Kevin I., additional, Combs, Deven, additional, Conti, Dennis M., additional, Crouzet, Nicolas, additional, de Leon, Jerome P., additional, Deljookorani, Shila, additional, Diamond, Brendan, additional, Doyon, René, additional, Dragomir, Diana, additional, Dransfield, Georgina, additional, Essack, Zahra, additional, Evans, Phil, additional, Fukui, Akihiko, additional, Gan, Tianjun, additional, Esquerdo, Gilbert A., additional, Gillon, Michaël, additional, Girardin, Eric, additional, Guerra, Pere, additional, Guillot, Tristan, additional, K. Habich, Eleanor Kate, additional, Henriksen, Andreea, additional, Hoch, Nora, additional, Isogai, Keisuke I, additional, Jehin, Emmanuël, additional, Jensen, Eric L. N., additional, Johnson, Marshall C., additional, Livingston, John H., additional, Kielkopf, John F., additional, Kim, Kingsley, additional, Kawauchi, Kiyoe, additional, Krushinsky, Vadim, additional, Kunzle, Veronica, additional, Laloum, Didier, additional, Leger, Dominic, additional, Lewin, Pablo, additional, Mallia, Franco, additional, Massey, Bob, additional, Mori, Mayuko, additional, McLeod, Kim K., additional, Mékarnia, Djamel, additional, Mireles, Ismael, additional, Mishevskiy, Nikolay, additional, Tamura, Motohide, additional, Murgas, Felipe, additional, Narita, Norio, additional, Naves, Ramon, additional, Nelson, Peter, additional, Osborn, Hugh P., additional, Palle, Enric, additional, Parviainen, Hannu, additional, Plavchan, Peter, additional, Pozuelos, Francisco J., additional, Rabus, Markus, additional, Relles, Howard M., additional, Rodríguez López, Cristina, additional, Quinn, Samuel N., additional, Schmider, Francois-Xavier, additional, Schlieder, Joshua E., additional, Schwarz, Richard P., additional, Shporer, Avi, additional, Sibbald, Laurie, additional, Srdoc, Gregor, additional, Stibbards, Caitlin, additional, Stickler, Hannah, additional, Suarez, Olga, additional, Stockdale, Chris, additional, Tan, Thiam-Guan, additional, Terada, Yuka, additional, Triaud, Amaury, additional, Tronsgaard, Rene, additional, Waalkes, William C., additional, Wang, Gavin, additional, Watanabe, Noriharu, additional, Wenceslas, Marie-Sainte, additional, Wingham, Geof, additional, Wittrock, Justin, additional, and Ziegler, Carl, additional

Published
2022
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29. Diving Beneath the Sea of Stellar Activity: Chromatic Radial Velocities of the Young AU Mic Planetary System

Author

Cale, Bryson L., primary, Reefe, Michael, additional, Plavchan, Peter, additional, Tanner, Angelle, additional, Gaidos, Eric, additional, Gagné, Jonathan, additional, Gao, Peter, additional, Kane, Stephen R., additional, Béjar, Víctor J. S., additional, Lodieu, Nicolas, additional, Anglada-Escudé, Guillem, additional, Ribas, Ignasi, additional, Pallé, Enric, additional, Quirrenbach, Andreas, additional, Amado, Pedro J., additional, Reiners, Ansgar, additional, Caballero, José A., additional, Rosa Zapatero Osorio, María, additional, Dreizler, Stefan, additional, Howard, Andrew W., additional, Fulton, Benjamin J., additional, Xuesong Wang, Sharon, additional, Collins, Kevin I., additional, El Mufti, Mohammed, additional, Wittrock, Justin, additional, Gilbert, Emily A., additional, Barclay, Thomas, additional, Klein, Baptiste, additional, Martioli, Eder, additional, Wittenmyer, Robert, additional, Wright, Duncan, additional, Addison, Brett, additional, Hirano, Teruyuki, additional, Tamura, Motohide, additional, Kotani, Takayuki, additional, Narita, Norio, additional, Vermilion, David, additional, Lee, Rena A., additional, Geneser, Claire, additional, Teske, Johanna, additional, Quinn, Samuel N., additional, Latham, David W., additional, Esquerdo, Gilbert A., additional, Calkins, Michael L., additional, Berlind, Perry, additional, Zohrabi, Farzaneh, additional, Stibbards, Caitlin, additional, Kotnana, Srihan, additional, Jenkins, Jon, additional, Twicken, Joseph D., additional, Henze, Christopher, additional, Kidwell, Richard, additional, Burke, Christopher, additional, Villaseñor, Joel, additional, and Boyd, Patricia, additional

Published
2021
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30. TOI-2109: An Ultrahot Gas Giant on a 16 hr Orbit

Author

Wong, Ian, primary, Shporer, Avi, additional, Zhou, George, additional, Kitzmann, Daniel, additional, Komacek, Thaddeus D., additional, Tan, Xianyu, additional, Tronsgaard, René, additional, Buchhave, Lars A., additional, Vissapragada, Shreyas, additional, Greklek-McKeon, Michael, additional, Rodriguez, Joseph E., additional, Ahlers, John P., additional, Quinn, Samuel N., additional, Furlan, Elise, additional, Howell, Steve B., additional, Bieryla, Allyson, additional, Heng, Kevin, additional, Knutson, Heather A., additional, Collins, Karen A., additional, McLeod, Kim K., additional, Berlind, Perry, additional, Brown, Peyton, additional, Calkins, Michael L., additional, de Leon, Jerome P., additional, Esparza-Borges, Emma, additional, Esquerdo, Gilbert A., additional, Fukui, Akihiko, additional, Gan, Tianjun, additional, Girardin, Eric, additional, Gnilka, Crystal L., additional, Ikoma, Masahiro, additional, Jensen, Eric L. N., additional, Kielkopf, John, additional, Kodama, Takanori, additional, Kurita, Seiya, additional, Lester, Kathryn V., additional, Lewin, Pablo, additional, Marino, Giuseppe, additional, Murgas, Felipe, additional, Narita, Norio, additional, Pallé, Enric, additional, Schwarz, Richard P., additional, Stassun, Keivan G., additional, Tamura, Motohide, additional, Watanabe, Noriharu, additional, Benneke, Björn, additional, Ricker, George R., additional, Latham, David W., additional, Vanderspek, Roland, additional, Seager, Sara, additional, Winn, Joshua N., additional, Jenkins, Jon M., additional, Caldwell, Douglas A., additional, Fong, William, additional, Huang, Chelsea X., additional, Mireles, Ismael, additional, Schlieder, Joshua E., additional, Shiao, Bernie, additional, and Noel Villaseñor, Jesus, additional

Published
2021
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31. TESS Delivers Five New Hot Giant Planets Orbiting Bright Stars from the Full-frame Images

Author

Rodriguez, Joseph E., primary, Quinn, Samuel N., additional, Zhou, George, additional, Vanderburg, Andrew, additional, Nielsen, Louise D., additional, Wittenmyer, Robert A., additional, Brahm, Rafael, additional, Reed, Phillip A., additional, Huang, Chelsea X., additional, Vach, Sydney, additional, Ciardi, David R., additional, Oelkers, Ryan J., additional, Stassun, Keivan G., additional, Hellier, Coel, additional, Gaudi, B. Scott, additional, Eastman, Jason D., additional, Collins, Karen A., additional, Bieryla, Allyson, additional, Christian, Sam, additional, Latham, David W., additional, Carleo, Ilaria, additional, Wright, Duncan J., additional, Matthews, Elisabeth, additional, Gonzales, Erica J., additional, Ziegler, Carl, additional, Dressing, Courtney D., additional, Howell, Steve B., additional, Tan, Thiam-Guan, additional, Wittrock, Justin, additional, Plavchan, Peter, additional, McLeod, Kim K., additional, Baker, David, additional, Wang, Gavin, additional, Radford, Don J., additional, Schwarz, Richard P., additional, Esposito, Massimiliano, additional, Ricker, George R., additional, Vanderspek, Roland K., additional, Seager, Sara, additional, Winn, Joshua N., additional, Jenkins, Jon M., additional, Addison, Brett, additional, Anderson, D. R., additional, Barclay, Thomas, additional, Beatty, Thomas G., additional, Berlind, Perry, additional, Bouchy, Francois, additional, Bowen, Michael, additional, Bowler, Brendan P., additional, Brasseur, C. E., additional, Briceño, César, additional, Caldwell, Douglas A., additional, Calkins, Michael L., additional, Cartwright, Scott, additional, Chaturvedi, Priyanka, additional, Chaverot, Guillaume, additional, Chimaladinne, Sudhish, additional, Christiansen, Jessie L., additional, Collins, Kevin I., additional, Crossfield, Ian J. M., additional, Eastridge, Kevin, additional, Espinoza, Néstor, additional, Esquerdo, Gilbert A., additional, Feliz, Dax L., additional, Fenske, Tyler, additional, Fong, William, additional, Gan, Tianjun, additional, Giacalone, Steven, additional, Gill, Holden, additional, Gordon, Lindsey, additional, Granados, A., additional, Grieves, Nolan, additional, Guenther, Eike W., additional, Guerrero, Natalia, additional, Henning, Thomas, additional, Henze, Christopher E., additional, Hesse, Katharine, additional, Hobson, Melissa J., additional, Horner, Jonathan, additional, James, David J., additional, Jensen, Eric L. N., additional, Jimenez, Mary, additional, Jordán, Andrés, additional, Kane, Stephen R., additional, Kielkopf, John, additional, Kim, Kingsley, additional, Kuhn, Rudolf B., additional, Latouf, Natasha, additional, Law, Nicholas M., additional, Levine, Alan M., additional, Lund, Michael B., additional, Mann, Andrew W., additional, Mao, Shude, additional, Matson, Rachel A., additional, Mengel, Matthew W., additional, Mink, Jessica, additional, Newman, Patrick, additional, O’Dwyer, Tanner, additional, Okumura, Jack, additional, Palle, Enric, additional, Pepper, Joshua, additional, Quintana, Elisa V., additional, Sarkis, Paula, additional, Savel, Arjun B., additional, Schlieder, Joshua E., additional, Schnaible, Chloe, additional, Shporer, Avi, additional, Sefako, Ramotholo, additional, Seidel, Julia V., additional, Siverd, Robert J., additional, Skinner, Brett, additional, Stalport, Manu, additional, Stevens, Daniel J., additional, Stibbards, Caitlin, additional, Tinney, C. G., additional, West, R. G., additional, Yahalomi, Daniel A., additional, and Zhang, Hui, additional

Published
2021
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33. Two Young Planetary Systems around Field Stars with Ages between 20 and 320 Myr from TESS

Author

Zhou, George, primary, Quinn, Samuel N., additional, Irwin, Jonathan, additional, Huang, Chelsea X., additional, Collins, Karen A., additional, Bouma, Luke G., additional, Khan, Lamisha, additional, Landrigan, Anaka, additional, Vanderburg, Andrew M., additional, Rodriguez, Joseph E., additional, Latham, David W., additional, Torres, Guillermo, additional, Douglas, Stephanie T., additional, Bieryla, Allyson, additional, Esquerdo, Gilbert A., additional, Berlind, Perry, additional, Calkins, Michael L., additional, Buchhave, Lars A., additional, Charbonneau, David, additional, Collins, Kevin I., additional, Kielkopf, John F., additional, Jensen, Eric L. N., additional, Tan, Thiam-Guan, additional, Hart, Rhodes, additional, Carter, Brad, additional, Stockdale, Christopher, additional, Ziegler, Carl, additional, Law, Nicholas, additional, Mann, Andrew W., additional, Howell, Steve B., additional, Matson, Rachel A., additional, Scott, Nicholas J., additional, Furlan, Elise, additional, White, Russel J., additional, Hellier, Coel, additional, Anderson, David R., additional, West, Richard G., additional, Ricker, George, additional, Vanderspek, Roland, additional, Seager, Sara, additional, Jenkins, Jon M., additional, Winn, Joshua N., additional, Mireles, Ismael, additional, Rowden, Pamela, additional, Yahalomi, Daniel A., additional, Wohler, Bill, additional, Brasseur, Clara. E., additional, Daylan, Tansu, additional, and Colón, Knicole D., additional

Published
2020
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34. TOI-481 b and TOI-892 b: Two Long-period Hot Jupiters from the Transiting Exoplanet Survey Satellite

Author

Brahm, Rafael, primary, Nielsen, Louise D., additional, Wittenmyer, Robert A., additional, Wang, Songhu, additional, Rodriguez, Joseph E., additional, Espinoza, Néstor, additional, Jones, Matías I., additional, Jordán, Andrés, additional, Henning, Thomas, additional, Hobson, Melissa, additional, Kossakowski, Diana, additional, Rojas, Felipe, additional, Sarkis, Paula, additional, Schlecker, Martin, additional, Trifonov, Trifon, additional, Shahaf, Sahar, additional, Ricker, George, additional, Vanderspek, Roland, additional, Latham, David W., additional, Seager, Sara, additional, Winn, Joshua N., additional, Jenkins, Jon M., additional, Addison, Brett C., additional, Bakos, Gáspár Á., additional, Bhatti, Waqas, additional, Bayliss, Daniel, additional, Berlind, Perry, additional, Bieryla, Allyson, additional, Bouchy, Francois, additional, Bowler, Brendan P., additional, Briceño, César, additional, Brown, Timothy M., additional, Bryant, Edward M., additional, Caldwell, Douglas A., additional, Charbonneau, David, additional, Collins, Karen A., additional, Davis, Allen B., additional, Esquerdo, Gilbert A., additional, Fulton, Benjamin J., additional, Guerrero, Natalia M., additional, Henze, Christopher E., additional, Hogan, Aleisha, additional, Horner, Jonathan, additional, Huang, Chelsea X., additional, Irwin, Jonathan, additional, Kane, Stephen R., additional, Kielkopf, John, additional, Mann, Andrew W., additional, Mazeh, Tsevi, additional, McCormac, James, additional, McCully, Curtis, additional, Mengel, Matthew W., additional, Mireles, Ismael, additional, Okumura, Jack, additional, Plavchan, Peter, additional, Quinn, Samuel N., additional, Rabus, Markus, additional, Saesen, Sophie, additional, Schlieder, Joshua E., additional, Segransan, Damien, additional, Shiao, Bernie, additional, Shporer, Avi, additional, Siverd, Robert J., additional, Stassun, Keivan G., additional, Suc, Vincent, additional, Tan, Thiam-Guan, additional, Torres, Pascal, additional, Tinney, Chris G., additional, Udry, Stephane, additional, Vanzi, Leonardo, additional, Vezie, Michael, additional, Vines, Jose I., additional, Vuckovic, Maja, additional, Wright, Duncan J., additional, Yahalomi, Daniel A., additional, Zapata, Abner, additional, Zhang, Hui, additional, and Ziegler, Carl, additional

Published
2020
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35. TOI 564 b and TOI 905 b: Grazing and Fully Transiting Hot Jupiters Discovered by TESS

Author

Davis, Allen B., primary, Wang, Songhu, additional, Jones, Matias, additional, Eastman, Jason D., additional, Günther, Maximilian N., additional, Stassun, Keivan G., additional, Addison, Brett C., additional, Collins, Karen A., additional, Quinn, Samuel N., additional, Latham, David W., additional, Trifonov, Trifon, additional, Shahaf, Sahar, additional, Mazeh, Tsevi, additional, Kane, Stephen R., additional, Narita, Norio, additional, Wang, Xian-Yu, additional, Tan, Thiam-Guan, additional, Ciardi, David R., additional, Tokovinin, Andrei, additional, Ziegler, Carl, additional, Tronsgaard, René, additional, Millholland, Sarah, additional, Cruz, Bryndis, additional, Berlind, Perry, additional, Calkins, Michael L., additional, Esquerdo, Gilbert A., additional, Collins, Kevin I., additional, Conti, Dennis M., additional, Murgas, Felipe, additional, Evans, Phil, additional, Lewin, Pablo, additional, Radford, Don J., additional, Paredes, Leonardo A., additional, Henry, Todd J., additional, Hodari-Sadiki, James, additional, Lund, Michael B., additional, Christiansen, Jessie L., additional, Law, Nicholas M., additional, Mann, Andrew W., additional, Briceño, César, additional, Parviainen, Hannu, additional, Palle, Enric, additional, Watanabe, Noriharu, additional, Ricker, George R., additional, Vanderspek, Roland, additional, Seager, Sara, additional, Winn, Joshua N., additional, Jenkins, Jon M., additional, Krishnamurthy, Akshata, additional, Batalha, Natalie M., additional, Burt, Jennifer, additional, Colón, Knicole D., additional, Dynes, Scott, additional, Caldwell, Douglas A., additional, Morris, Robert, additional, Henze, Christopher E., additional, and Fischer, Debra A., additional

Published
2020
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36. TESS Hunt for Young and Maturing Exoplanets (THYME). III. A Two-planet System in the 400 Myr Ursa Major Group

Author

Mann, Andrew W., primary, Johnson, Marshall C., additional, Vanderburg, Andrew, additional, Kraus, Adam L., additional, Rizzuto, Aaron C., additional, Wood, Mackenna L., additional, Bush, Jonathan L., additional, Rockcliffe, Keighley, additional, Newton, Elisabeth R., additional, Latham, David W., additional, Mamajek, Eric E., additional, Zhou, George, additional, Quinn, Samuel N., additional, Thao, Pa Chia, additional, Benatti, Serena, additional, Cosentino, Rosario, additional, Desidera, Silvano, additional, Harutyunyan, Avet, additional, Lovis, Christophe, additional, Mortier, Annelies, additional, Pepe, Francesco A., additional, Poretti, Ennio, additional, Wilson, Thomas G., additional, Kristiansen, Martti H., additional, Gagliano, Robert, additional, Jacobs, Thomas, additional, LaCourse, Daryll M., additional, Omohundro, Mark, additional, Schwengeler, Hans Martin, additional, Terentev, Ivan A., additional, Kane, Stephen R., additional, Hill, Michelle L., additional, Rabus, Markus, additional, Esquerdo, Gilbert A., additional, Berlind, Perry, additional, Collins, Karen A., additional, Murawski, Gabriel, additional, Sallam, Nezar Hazam, additional, Aitken, Michael M., additional, Massey, Bob, additional, Ricker, George R., additional, Vanderspek, Roland, additional, Seager, Sara, additional, Winn, Joshua N., additional, Jenkins, Jon M., additional, Barclay, Thomas, additional, Caldwell, Douglas A., additional, Dragomir, Diana, additional, Doty, John P., additional, Glidden, Ana, additional, Tenenbaum, Peter, additional, Torres, Guillermo, additional, Twicken, Joseph D., additional, and Villanueva Jr, Steven, additional

Published
2020
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37. Spectroscopic Orbits of 11 Nearby, Mid-to-late M-dwarf Binaries

Author

Winters, Jennifer G., primary, Irwin, Jonathan M., additional, Charbonneau, David, additional, Latham, David W., additional, Medina, Amber M., additional, Mink, Jessica, additional, Esquerdo, Gilbert A., additional, Berlind, Perry, additional, Calkins, Michael L., additional, and Berta-Thompson, Zachory K., additional

Published
2020
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38. TOI-503: The First Known Brown-dwarf Am-star Binary from the TESS Mission

Author

Šubjak, Ján, primary, Sharma, Rishikesh, additional, Carmichael, Theron W., additional, Johnson, Marshall C., additional, Gonzales, Erica J., additional, Matthews, Elisabeth, additional, Boffin, Henri M. J., additional, Brahm, Rafael, additional, Chaturvedi, Priyanka, additional, Chakraborty, Abhijit, additional, Ciardi, David R., additional, Collins, Karen A., additional, Esposito, Massimiliano, additional, Fridlund, Malcolm, additional, Gan, Tianjun, additional, Gandolfi, Davide, additional, García, Rafael A., additional, Guenther, Eike, additional, Hatzes, Artie, additional, Latham, David W., additional, Mathis, Stéphane, additional, Mathur, Savita, additional, Persson, Carina M., additional, Relles, Howard M., additional, Schlieder, Joshua E., additional, Barclay, Thomas, additional, Dressing, Courtney D., additional, Crossfield, Ian, additional, Howard, Andrew W., additional, Rodler, Florian, additional, Zhou, George, additional, Quinn, Samuel N., additional, Esquerdo, Gilbert A., additional, Calkins, Michael L., additional, Berlind, Perry, additional, G. Stassun, Keivan, additional, Blažek, Martin, additional, Skarka, Marek, additional, Špoková, Magdalena, additional, Žák, Jiří, additional, Albrecht, Simon, additional, Sobrino, Roi Alonso, additional, Beck, Paul, additional, Cabrera, Juan, additional, Carleo, Ilaria, additional, Cochran, William D., additional, Csizmadia, Szilard, additional, Dai, Fei, additional, Deeg, Hans J., additional, de Leon, Jerome P., additional, Eigmüller, Philipp, additional, Endl, Michael, additional, Erikson, Anders, additional, Fukui, Akihiko, additional, Georgieva, Iskra, additional, González-Cuesta, Lucía, additional, Grziwa, Sascha, additional, Hidalgo, Diego, additional, Hirano, Teruyuki, additional, Hjorth, Maria, additional, Knudstrup, Emil, additional, Korth, Judith, additional, Lam, Kristine W. F., additional, Livingston, John H., additional, Lund, Mikkel N., additional, Luque, Rafael, additional, Rodríguez, Pilar Montanes, additional, Murgas, Felipe, additional, Narita, Norio, additional, Nespral, David, additional, Niraula, Prajwal, additional, Nowak, Grzegorz, additional, Pallé, Enric, additional, Pätzold, Martin, additional, Prieto-Arranz, Jorge, additional, Rauer, Heike, additional, Redfield, Seth, additional, Ribas, Ignasi, additional, Smith, Alexis M. S., additional, Eylen, Vincent Van, additional, and Kabáth, Petr, additional

Published
2020
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39. Spectroscopic Orbits of 11 Nearby, Mid-to-late M-dwarf Binaries

Author

Jonathan Irwin, Jessica Mink, Amber M. Medina, Perry Berlind, Gilbert A. Esquerdo, Michael L. Calkins, Jennifer G. Winters, David W. Latham, Zachory K. Berta-Thompson, and David Charbonneau

Subjects
Physics, 010504 meteorology & atmospheric sciences, Resolution (electron density), White dwarf, Astronomy and Astrophysics, Astrophysics, Visible radiation, 01 natural sciences, Electromagnetic radiation, Spectral line, Stars, Space and Planetary Science, 0103 physical sciences, Binary star, 010303 astronomy & astrophysics, 0105 earth and related environmental sciences
Published
2020

40. KELT-24b: A 5M J Planet on a 5.6 day Well-aligned Orbit around the Young V = 8.3 F-star HD 93148

Author

Rodriguez, Joseph E., primary, Eastman, Jason D., additional, Zhou, George, additional, Quinn, Samuel N., additional, Beatty, Thomas G., additional, Penev, Kaloyan, additional, Johnson, Marshall C., additional, Cargile, Phillip A., additional, Latham, David W., additional, Bieryla, Allyson, additional, Collins, Karen A., additional, Dressing, Courtney D., additional, Ciardi, David R., additional, Relles, Howard M., additional, Murawski, Gabriel, additional, Nishiumi, Taku, additional, Yonehara, Atsunori, additional, Ishimaru, Ryo, additional, Yoshida, Fumi, additional, Gregorio, Joao, additional, Lund, Michael B., additional, Stevens, Daniel J., additional, Stassun, Keivan G., additional, Gaudi, B. Scott, additional, Colón, Knicole D., additional, Pepper, Joshua, additional, Narita, Norio, additional, Awiphan, Supachai, additional, Chuanraksasat, Pongpichit, additional, Benni, Paul, additional, Zambelli, Roberto, additional, Garrison, Lehman H., additional, Wilson, Maurice L., additional, Cornachione, Matthew A., additional, Wang, Sharon X., additional, Labadie-Bartz, Jonathan, additional, Rodríguez, Romy, additional, Siverd, Robert J., additional, Yao, Xinyu, additional, Bayliss, Daniel, additional, Berlind, Perry, additional, Calkins, Michael L., additional, Christiansen, Jessie L., additional, Cohen, David H., additional, Conti, Dennis M., additional, Curtis, Ivan A., additional, Depoy, D. L., additional, Esquerdo, Gilbert A., additional, Evans, Phil, additional, Feliz, Dax, additional, Fulton, Benjamin J., additional, Holoien, Thomas W.-S., additional, James, David J., additional, Jayasinghe, Tharindu, additional, Jang-Condell, Hannah, additional, Jensen, Eric L. N., additional, Johnson, John A., additional, Joner, Michael D., additional, Khakpash, Somayeh, additional, Kielkopf, John F., additional, Kuhn, Rudolf B., additional, Manner, Mark, additional, Marshall, Jennifer L., additional, McLeod, Kim K., additional, McCrady, Nate, additional, Oberst, Thomas E., additional, Oelkers, Ryan J., additional, Penny, Matthew T., additional, Reed, Phillip A., additional, Sliski, David H., additional, Shappee, B. J., additional, Stephens, Denise C., additional, Stockdale, Chris, additional, Tan, Thiam-Guan, additional, Trueblood, Mark, additional, Trueblood, Pat, additional, Villanueva, Steven, additional, Wittenmyer, Robert A., additional, and Wright, Jason T., additional

Published
2019
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41. Three Red Suns in the Sky: A Transiting, Terrestrial Planet in a Triple M-dwarf System at 6.9 pc

Author

Winters, Jennifer G., primary, Medina, Amber A., additional, Irwin, Jonathan M., additional, Charbonneau, David, additional, Astudillo-Defru, Nicola, additional, Horch, Elliott P., additional, Eastman, Jason D., additional, Vrijmoet, Eliot Halley, additional, Henry, Todd J., additional, Diamond-Lowe, Hannah, additional, Winston, Elaine, additional, Barclay, Thomas, additional, Bonfils, Xavier, additional, Ricker, George R., additional, Vanderspek, Roland, additional, Latham, David W., additional, Seager, Sara, additional, Winn, Joshua N., additional, Jenkins, Jon M., additional, Udry, Stéphane, additional, Twicken, Joseph D., additional, Teske, Johanna K., additional, Tenenbaum, Peter, additional, Pepe, Francesco, additional, Murgas, Felipe, additional, Muirhead, Philip S., additional, Mink, Jessica, additional, Lovis, Christophe, additional, Levine, Alan M., additional, Lépine, Sébastien, additional, Jao, Wei-Chun, additional, Henze, Christopher E., additional, Furész, Gábor, additional, Forveille, Thierry, additional, Figueira, Pedro, additional, Esquerdo, Gilbert A., additional, Dressing, Courtney D., additional, Díaz, Rodrigo F., additional, Delfosse, Xavier, additional, Burke, Christopher J., additional, Bouchy, François, additional, Berlind, Perry, additional, and Almenara, Jose-Manuel, additional

Published
2019
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42. Two New HATNet Hot Jupiters around A Stars and the First Glimpse at the Occurrence Rate of Hot Jupiters from TESS

Author

Zhou, G., primary, Huang, C. X., additional, Bakos, G. Á., additional, Hartman, J. D., additional, Latham, David W., additional, Quinn, S. N., additional, Collins, K. A., additional, Winn, J. N., additional, Wong, I., additional, Kovács, G., additional, Csubry, Z., additional, Bhatti, W., additional, Penev, K., additional, Bieryla, A., additional, Esquerdo, G. A., additional, Berlind, P., additional, Calkins, M. L., additional, Val-Borro, M. de, additional, Noyes, R. W., additional, Lázár, J., additional, Papp, I., additional, Sári, P., additional, Kovács, T., additional, Buchhave, Lars A., additional, Szklenar, T., additional, Béky, B., additional, Johnson, M. C., additional, Cochran, W. D., additional, Kniazev, A. Y., additional, Stassun, K. G., additional, Fulton, B. J., additional, Shporer, A., additional, Espinoza, N., additional, Bayliss, D., additional, Everett, M., additional, Howell, S. B., additional, Hellier, C., additional, Anderson, D. R., additional, Cameron, A. Collier, additional, West, R. G., additional, Brown, D. J. A., additional, Schanche, N., additional, Barkaoui, K., additional, Pozuelos, F., additional, Gillon, M., additional, Jehin, E., additional, Benkhaldoun, Z., additional, Daassou, A., additional, Ricker, G., additional, Vanderspek, R., additional, Seager, S., additional, Jenkins, J. M., additional, Lissauer, Jack J., additional, Armstrong, J. D., additional, Collins, K. I., additional, Gan, T., additional, Hart, R., additional, Horne, K., additional, Kielkopf, J. F., additional, Nielsen, L. D., additional, Nishiumi, T., additional, Narita, N., additional, Palle, E., additional, Relles, H. M., additional, Sefako, R., additional, Tan, T. G., additional, Davies, M., additional, Goeke, Robert F., additional, Guerrero, N., additional, Haworth, K., additional, and Villanueva, S., additional

Published
2019
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43. A Hot Saturn Near (but Unassociated with) the Open Cluster NGC 1817

Author

Rampalli, Rayna, primary, Vanderburg, Andrew, additional, Bieryla, Allyson, additional, Latham, David W., additional, Quinn, Samuel N., additional, Baranec, Christoph, additional, Berlind, Perry, additional, Calkins, Michael L., additional, Cochran, William D., additional, Duev, Dmitry A., additional, Endl, Michael, additional, Esquerdo, Gilbert A., additional, Jensen-Clem, Rebecca, additional, Law, Nicholas M., additional, Mayo, Andrew W., additional, Riddle, Reed, additional, and Salama, Maïssa, additional

Published
2019
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44. An Eccentric Massive Jupiter Orbiting a Subgiant on a 9.5-day Period Discovered in the Transiting Exoplanet Survey Satellite Full Frame Images

Author

Rodriguez, Joseph E., primary, Quinn, Samuel N., additional, Huang, Chelsea X., additional, Vanderburg, Andrew, additional, Penev, Kaloyan, additional, Brahm, Rafael, additional, Jordán, Andrés, additional, Ikwut-Ukwa, Mma, additional, Tsirulik, Shelly, additional, Latham, David W., additional, Stassun, Keivan G., additional, Shporer, Avi, additional, Ziegler, Carl, additional, Matthews, Elisabeth, additional, Eastman, Jason D., additional, Gaudi, B. Scott, additional, Collins, Karen A., additional, Guerrero, Natalia, additional, Relles, Howard M., additional, Barclay, Thomas, additional, Batalha, Natalie M., additional, Berlind, Perry, additional, Bieryla, Allyson, additional, Bouma, L. G., additional, Boyd, Patricia T., additional, Burt, Jennifer, additional, Calkins, Michael L., additional, Christiansen, Jessie, additional, Ciardi, David R., additional, Colón, Knicole D., additional, Conti, Dennis M., additional, Crossfield, Ian J. M., additional, Daylan, Tansu, additional, Dittmann, Jason, additional, Dragomir, Diana, additional, Dynes, Scott, additional, Espinoza, Néstor, additional, Esquerdo, Gilbert A., additional, Essack, Zahra, additional, Soto, Aylin Garcia, additional, Glidden, Ana, additional, Günther, Maximilian N., additional, Henning, Thomas, additional, Jenkins, Jon M., additional, Kielkopf, John F., additional, Krishnamurthy, Akshata, additional, Law, Nicholas M., additional, Levine, Alan M., additional, Lewin, Pablo, additional, Mann, Andrew W., additional, Morgan, Edward H., additional, Morris, Robert L., additional, Oelkers, Ryan J., additional, Paegert, Martin, additional, Pepper, Joshua, additional, Quintana, Elisa V., additional, Ricker, George R., additional, Rowden, Pamela, additional, Seager, Sara, additional, Sarkis, Paula, additional, Schlieder, Joshua E., additional, Sha, Lizhou, additional, Tokovinin, Andrei, additional, Torres, Guillermo, additional, Vanderspek, Roland K., additional, Villanueva, Steven, additional, Villaseñor, Jesus Noel, additional, Winn, Joshua N., additional, Wohler, Bill, additional, Wong, Ian, additional, Yahalomi, Daniel A., additional, Yu, Liang, additional, Zhan, Zhuchang, additional, and Zhou, George, additional

Published
2019
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45. Identifying Exoplanets with Deep Learning. II. Two New Super-Earths Uncovered by a Neural Network in K2 Data

Author

Dattilo, Anne, primary, Vanderburg, Andrew, additional, Shallue, Christopher J., additional, Mayo, Andrew W., additional, Berlind, Perry, additional, Bieryla, Allyson, additional, Calkins, Michael L., additional, Esquerdo, Gilbert A., additional, Everett, Mark E., additional, Howell, Steve B., additional, Latham, David W., additional, Scott, Nicholas J., additional, and Yu, Liang, additional

Published
2019
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46. The CIDA Variability Survey of Orion OB1. II. Demographics of the Young, Low-mass Stellar Populations

Author

Briceño, César, primary, Calvet, Nuria, additional, Hernández, Jesús, additional, Vivas, A. Katherina, additional, Mateu, Cecilia, additional, Downes, Juan José, additional, Loerincs, Jaqueline, additional, Pérez-Blanco, Alice, additional, Berlind, Perry, additional, Espaillat, Catherine, additional, Allen, Lori, additional, Hartmann, Lee, additional, Mateo, Mario, additional, and Bailey III, John I., additional

Published
2019
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47. A Hot Saturn Near (but Unassociated with) the Open Cluster NGC 1817

Author

Andrew W. Mayo, Perry Berlind, Christoph Baranec, Reed Riddle, Michael Endl, Rebecca Jensen-Clem, Allyson Bieryla, Michael L. Calkins, Dmitry A. Duev, David W. Latham, Maïssa Salama, Andrew Vanderburg, William D. Cochran, Rayna Rampalli, Gilbert A. Esquerdo, Nicholas M. Law, and Samuel N. Quinn

Subjects
Earth and Planetary Astrophysics (astro-ph.EP), Physics, 010504 meteorology & atmospheric sciences, FOS: Physical sciences, Astronomy, Astronomy and Astrophysics, Planetary system, 01 natural sciences, Exoplanet, Radial velocity, Photometry (optics), Stars, Space and Planetary Science, Planet, 0103 physical sciences, Adaptive optics, 010303 astronomy & astrophysics, Astrophysics - Earth and Planetary Astrophysics, 0105 earth and related environmental sciences, Open cluster
Abstract

We report on the discovery of a hot Saturn-sized planet (9.916 +/- 0.985 R_earth) around a late F star, EPIC 246865365, observed in Campaign 13 of the K2 mission. We began studying this planet candidate because prior to the release of Gaia DR2, the host star was thought to have been a member (> 90% membership probability) of the approximately 1 Gyr open cluster NGC 1817 based on its kinematics and photometric distance. We identify the host star (among three stars within the K2 photometric aperture) using seeing-limited photometry and rule out false positive scenarios using adaptive optics imaging and radial velocity observations. We statistically validate EPIC 246865365b by calculating a false positive probability rate of 0.01%. However, we also show using new kinematic measurements provided by Gaia DR2 and our measured radial velocity of the system that EPIC 246865365 is unassociated with the cluster NGC 1817. Therefore, the long-running search for a giant transiting planet in an open cluster remains fruitless. Finally, we note that our use of seeing-limited photometry is a good demonstration of similar techniques that are already being used to follow up TESS planet candidates, especially in crowded regions., 11 pages, 4 figures, 1 table. Accepted in AJ

Published
2019

48. EPIC 246851721 b: A Tropical Jupiter Transiting a Rapidly Rotating Star in a Well-aligned Orbit

Author

Yu, Liang, primary, Zhou, George, additional, Rodriguez, Joseph E., additional, Huang, Chelsea X., additional, Vanderburg, Andrew, additional, Quinn, Samuel N., additional, Gaudi, B. Scott, additional, Beichman, Charles A., additional, Berlind, Perry, additional, Bieryla, Allyson, additional, Calkins, Michael L., additional, Ciardi, David R., additional, Crossfield, Ian J. M., additional, Eastman, Jason D., additional, Esquerdo, Gilbert A., additional, Latham, David W., additional, Stassun, Keivan G., additional, and Villanueva, Steven, additional

Published
2018
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49. A Compact Multi-planet System with a Significantly Misaligned Ultra Short Period Planet

Author

Rodriguez, Joseph E., primary, Becker, Juliette C., additional, Eastman, Jason D., additional, Hadden, Sam, additional, Vanderburg, Andrew, additional, Khain, Tali, additional, Quinn, Samuel N., additional, Mayo, Andrew, additional, Dressing, Courtney D., additional, Schlieder, Joshua E., additional, Ciardi, David R., additional, Latham, David W., additional, Rappaport, Saul, additional, Adams, Fred C., additional, Berlind, Perry, additional, Bieryla, Allyson, additional, Calkins, Michael L., additional, Esquerdo, Gilbert A., additional, Kristiansen, Martti H., additional, Omohundro, Mark, additional, Schwengeler, Hans Martin, additional, Stassun, Keivan G., additional, and Terentev, Ivan, additional

Published
2018
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50. The KELT Follow-up Network and Transit False-positive Catalog: Pre-vetted False Positives for TESS

Author

Collins, Karen A., primary, Collins, Kevin I., additional, Pepper, Joshua, additional, Labadie-Bartz, Jonathan, additional, Stassun, Keivan G., additional, Gaudi, B. Scott, additional, Bayliss, Daniel, additional, Bento, Joao, additional, COLÓN, Knicole D., additional, Feliz, Dax, additional, James, David, additional, Johnson, Marshall C., additional, Kuhn, Rudolf B., additional, Lund, Michael B., additional, Penny, Matthew T., additional, Rodriguez, Joseph E., additional, Siverd, Robert J., additional, Stevens, Daniel J., additional, Yao, Xinyu, additional, Zhou, George, additional, Akshay, Mundra, additional, Aldi, Giulio F., additional, Ashcraft, Cliff, additional, Awiphan, Supachai, additional, Baştürk, Özgür, additional, Baker, David, additional, Beatty, Thomas G., additional, Benni, Paul, additional, Berlind, Perry, additional, Bruce Berriman, G., additional, Berta-Thompson, Zach, additional, Bieryla, Allyson, additional, Bozza, Valerio, additional, Calchi Novati, Sebastiano, additional, Calkins, Michael L., additional, Cann, Jenna M., additional, Ciardi, David R., additional, Clark, Ian R., additional, Cochran, William D., additional, Cohen, David H., additional, Conti, Dennis, additional, Crepp, Justin R., additional, Curtis, Ivan A., additional, D’Ago, Giuseppe, additional, Diazeguigure, Kenny A., additional, Dressing, Courtney D., additional, Dubois, Franky, additional, Ellingson, Erica, additional, Ellis, Tyler G., additional, Esquerdo, Gilbert A., additional, Evans, Phil, additional, Friedli, Alison, additional, Fukui, Akihiko, additional, Fulton, Benjamin J., additional, Gonzales, Erica J., additional, Good, John C., additional, Gregorio, Joao, additional, Gumusayak, Tolga, additional, Hancock, Daniel A., additional, Harada, Caleb K., additional, Hart, Rhodes, additional, Hintz, Eric G., additional, Jang-Condell, Hannah, additional, Jeffery, Elizabeth J., additional, Jensen, Eric L. N., additional, Jofré, Emiliano, additional, Joner, Michael D., additional, Kar, Aman, additional, Kasper, David H., additional, Keten, Burak, additional, Kielkopf, John F., additional, Komonjinda, Siramas, additional, Kotnik, Cliff, additional, Latham, David W., additional, Leuquire, Jacob, additional, Lewis, Tiffany R., additional, Logie, Ludwig, additional, Lowther, Simon J., additional, Macqueen, Phillip J., additional, Martin, Trevor J., additional, Mawet, Dimitri, additional, Mcleod, Kim K., additional, Murawski, Gabriel, additional, Narita, Norio, additional, Nordhausen, Jim, additional, Oberst, Thomas E., additional, Odden, Caroline, additional, Panka, Peter A., additional, Petrucci, Romina, additional, Plavchan, Peter, additional, Quinn, Samuel N., additional, Rau, Steve, additional, Reed, Phillip A., additional, Relles, Howard, additional, Renaud, Joe P., additional, Scarpetta, Gaetano, additional, Sorber, Rebecca L., additional, Spencer, Alex D., additional, Spencer, Michelle, additional, Stephens, Denise C., additional, Stockdale, Chris, additional, Tan, Thiam-Guan, additional, Trueblood, Mark, additional, Trueblood, Patricia, additional, Vanaverbeke, Siegfried, additional, Villanueva, Steven, additional, Warner, Elizabeth M., additional, Lou West, Mary, additional, Yalçınkaya, Selçuk, additional, Yeigh, Rex, additional, and Zambelli, Roberto, additional

Published
2018
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