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1. A magnetar giant flare in the nearby starburst galaxy M82

Author: Mereghetti, S, Rigoselli, M, Salvaterra, R, Pacholski, D, Craig Rodi, J, Gotz, D, Arrigoni, E, D’Avanzo, P, Adami, C, Bazzano, A, Bozzo, E, Brivio, R, Campana, S, Cappellaro, E, Chenevez, J, De Luise, F, Ducci, L, Esposito, P, Ferrigno, C, Ferro, M, Luca Israel, G, Le Floc’h, E, Martin-Carrillo, A, Onori, F, Rea, N, Reguitti, A, Savchenko, V, Souami, D, Tartaglia, L, Thuillot, W, Tiengo, A, Tomasella, L, Topinka, M, Turpin, D, Ubertini, P, Sandro Mereghetti, Michela Rigoselli, Ruben Salvaterra, Dominik Patryk Pacholski, James Craig Rodi, Diego Gotz, Edoardo Arrigoni, Paolo D’Avanzo, Christophe Adami, Angela Bazzano, Enrico Bozzo, Riccardo Brivio, Sergio Campana, Enrico Cappellaro, Jerome Chenevez, Fiore De Luise, Lorenzo Ducci, Paolo Esposito, Carlo Ferrigno, Matteo Ferro, Gian Luca Israel, Emeric Le Floc’h, Antonio Martin-Carrillo, Francesca Onori, Nanda Rea, Andrea Reguitti, Volodymyr Savchenko, Damya Souami, Leonardo Tartaglia, William Thuillot, Andrea Tiengo, Lina Tomasella, Martin Topinka, Damien Turpin, Pietro Ubertini, Mereghetti, S, Rigoselli, M, Salvaterra, R, Pacholski, D, Craig Rodi, J, Gotz, D, Arrigoni, E, D’Avanzo, P, Adami, C, Bazzano, A, Bozzo, E, Brivio, R, Campana, S, Cappellaro, E, Chenevez, J, De Luise, F, Ducci, L, Esposito, P, Ferrigno, C, Ferro, M, Luca Israel, G, Le Floc’h, E, Martin-Carrillo, A, Onori, F, Rea, N, Reguitti, A, Savchenko, V, Souami, D, Tartaglia, L, Thuillot, W, Tiengo, A, Tomasella, L, Topinka, M, Turpin, D, Ubertini, P, Sandro Mereghetti, Michela Rigoselli, Ruben Salvaterra, Dominik Patryk Pacholski, James Craig Rodi, Diego Gotz, Edoardo Arrigoni, Paolo D’Avanzo, Christophe Adami, Angela Bazzano, Enrico Bozzo, Riccardo Brivio, Sergio Campana, Enrico Cappellaro, Jerome Chenevez, Fiore De Luise, Lorenzo Ducci, Paolo Esposito, Carlo Ferrigno, Matteo Ferro, Gian Luca Israel, Emeric Le Floc’h, Antonio Martin-Carrillo, Francesca Onori, Nanda Rea, Andrea Reguitti, Volodymyr Savchenko, Damya Souami, Leonardo Tartaglia, William Thuillot, Andrea Tiengo, Lina Tomasella, Martin Topinka, Damien Turpin, and Pietro Ubertini
Abstract: Magnetar giant flares are rare explosive events releasing up to 1047 erg in gamma rays in less than 1 second from young neutron stars with magnetic fields up to 1015−16 G (refs. 1,2). Only three such flares have been seen from magnetars in our Galaxy3,4 and in the Large Magellanic Cloud5 in roughly 50 years. This small sample can be enlarged by the discovery of extragalactic events, as for a fraction of a second giant flares reach luminosities above 1046 erg s−1, which makes them visible up to a few tens of megaparsecs. However, at these distances they are difficult to distinguish from short gamma-ray bursts (GRBs); much more distant and energetic (1050−53 erg) events, originating in compact binary mergers6. A few short GRBs have been proposed7–11, with different amounts of confidence, as candidate giant magnetar flares in nearby galaxies. Here we report observations of GRB 231115A, positionally coincident with the starburst galaxy M82 (ref. 12). Its spectral properties, along with the length of the burst, the limits on its X-ray and optical counterparts obtained within a few hours, and the lack of a gravitational wave signal, unambiguously qualify this burst as a giant flare from a magnetar in M82.
Published: 2024

2. Heavy element production in a compact object merger observed by JWST

Author: Levan, Andrew, Gompertz, Benjamin P., Salafia, Om Sharan, Bulla, Mattia, Burns, Eric, Hotokezaka, Kenta, Izzo, Luca, Lamb, Gavin P., Malesani, Daniele B., Oates, Samantha R., Ravasio, Maria Edvige, Escorial, Alicia Rouco, Schneider, Benjamin, Sarin, Nikhil, Schulze, Steve, Tanvir, Nial R., Ackley, Kendall, Anderson, Gemma, Brammer, Gabriel B., Christensen, Lise, Dhillon, Vikram S., Evans, Phil A., Fausnaugh, Michael, Fong, Wen-fai, Fruchter, Andrew S., Fryer, Chris, Fynbo, Johan P. U., Gaspari, Nicola, Heintz, Kasper E., Hjorth, Jens, Kennea, Jamie A., Kennedy, Mark R., Laskar, Tanmoy, Leloudas, Giorgos, Mandel, Ilya, Martin-Carrillo, Antonio, Metzger, Brian D., Nicholl, Matt, Nugent, Anya, Palmerio, Jesse T., Pugliese, Giovanna, Rastinejad, Jillian, Rhodes, Lauren, Saccardi, Andrea, Smartt, Stephen J., Stevance, Heloise F., Tohuvavohu, Aaron, Horst, Alexander van der, Vergani, Susanna D., Watson, Darach, Barclay, Thomas, Bhirombhakdi, Kornpob, Breedt, Elmé, Breeveld, Alice A., Brown, Alexander J., Campana, Sergio, Chrimes, Ashley A., D’Avanzo, Paolo, D’Elia, Valerio, Pasquale, Massimiliano De, Dyer, Martin J., Galloway, Duncan K., Garbutt, James A., Hartmann, Dieter H., Jakobsson, Páll, Kerry, Paul, Kouveliotou, Chryssa, Langeroodi, Danial, Floc’h, Emeric Le, Leung, James K., Littlefair, Stuart P., Munday, James, O’Brien, Paul, Parsons, Steven G., Pelisoli, Ingrid, Sahman, David I., Salvaterra, Ruben, Sbarufatti, Boris, Steeghs, Danny, Tagliaferri, Gianpiero, Thöne, Christina C., Postigo, Antonio de Ugarte, Kann, David Alexander, Levan, Andrew, Gompertz, Benjamin P., Salafia, Om Sharan, Bulla, Mattia, Burns, Eric, Hotokezaka, Kenta, Izzo, Luca, Lamb, Gavin P., Malesani, Daniele B., Oates, Samantha R., Ravasio, Maria Edvige, Escorial, Alicia Rouco, Schneider, Benjamin, Sarin, Nikhil, Schulze, Steve, Tanvir, Nial R., Ackley, Kendall, Anderson, Gemma, Brammer, Gabriel B., Christensen, Lise, Dhillon, Vikram S., Evans, Phil A., Fausnaugh, Michael, Fong, Wen-fai, Fruchter, Andrew S., Fryer, Chris, Fynbo, Johan P. U., Gaspari, Nicola, Heintz, Kasper E., Hjorth, Jens, Kennea, Jamie A., Kennedy, Mark R., Laskar, Tanmoy, Leloudas, Giorgos, Mandel, Ilya, Martin-Carrillo, Antonio, Metzger, Brian D., Nicholl, Matt, Nugent, Anya, Palmerio, Jesse T., Pugliese, Giovanna, Rastinejad, Jillian, Rhodes, Lauren, Saccardi, Andrea, Smartt, Stephen J., Stevance, Heloise F., Tohuvavohu, Aaron, Horst, Alexander van der, Vergani, Susanna D., Watson, Darach, Barclay, Thomas, Bhirombhakdi, Kornpob, Breedt, Elmé, Breeveld, Alice A., Brown, Alexander J., Campana, Sergio, Chrimes, Ashley A., D’Avanzo, Paolo, D’Elia, Valerio, Pasquale, Massimiliano De, Dyer, Martin J., Galloway, Duncan K., Garbutt, James A., Hartmann, Dieter H., Jakobsson, Páll, Kerry, Paul, Kouveliotou, Chryssa, Langeroodi, Danial, Floc’h, Emeric Le, Leung, James K., Littlefair, Stuart P., Munday, James, O’Brien, Paul, Parsons, Steven G., Pelisoli, Ingrid, Sahman, David I., Salvaterra, Ruben, Sbarufatti, Boris, Steeghs, Danny, Tagliaferri, Gianpiero, Thöne, Christina C., Postigo, Antonio de Ugarte, and Kann, David Alexander
Abstract: The mergers of binary compact objects such as neutron stars and black holes are of central interest to several areas of astrophysics, including as the progenitors of gamma-ray bursts (GRBs) 1, sources of high-frequency gravitational waves (GWs) 2 and likely production sites for heavy-element nucleosynthesis by means of rapid neutron capture (the r-process) 3. Here we present observations of the exceptionally bright GRB 230307A. We show that GRB 230307A belongs to the class of long-duration GRBs associated with compact object mergers 4–6 and contains a kilonova similar to AT2017gfo, associated with the GW merger GW170817 (refs. 7–12). We obtained James Webb Space Telescope (JWST) mid-infrared imaging and spectroscopy 29 and 61 days after the burst. The spectroscopy shows an emission line at 2.15 microns, which we interpret as tellurium (atomic mass A = 130) and a very red source, emitting most of its light in the mid-infrared owing to the production of lanthanides. These observations demonstrate that nucleosynthesis in GRBs can create r-process elements across a broad atomic mass range and play a central role in heavy-element nucleosynthesis across the Universe.
Published: 2024

3. Neutral Fraction of Hydrogen in the Intergalactic Medium Surrounding High-Redshift Gamma-Ray Burst 210905A

Author: Fausey, H. M., Vejlgaard, S., van der Horst, A. J., Heintz, K. E., Izzo, L., Malesani, D. B., Wiersema, K., Fynbo, J. P. U., Tanvir, N. R., Vergani, S. D., Saccardi, A., Rossi, A., Campana, S., Covino, S., D'Elia, V., De Pasquale, M., Hartmann, D., Jakobsson, P., Kouveliotou, C., Levan, A., Martin-Carrillo, A., Melandri, A., Palmerio, J., Pugliese, G., Salvaterra, R., Fausey, H. M., Vejlgaard, S., van der Horst, A. J., Heintz, K. E., Izzo, L., Malesani, D. B., Wiersema, K., Fynbo, J. P. U., Tanvir, N. R., Vergani, S. D., Saccardi, A., Rossi, A., Campana, S., Covino, S., D'Elia, V., De Pasquale, M., Hartmann, D., Jakobsson, P., Kouveliotou, C., Levan, A., Martin-Carrillo, A., Melandri, A., Palmerio, J., Pugliese, G., and Salvaterra, R.
Abstract: The Epoch of Reionization (EoR) is a key period of cosmological history in which the intergalactic medium (IGM) underwent a major phase change from being neutral to almost completely ionized. Gamma-ray bursts (GRBs) are luminous and unique probes of their environments that can be used to study the timeline for the progression of the EoR. Here we present a detailed analysis of the ESO Very Large Telescope X-shooter spectrum of GRB 210905A, which resides at a redshift of z ~ 6.3. We focus on estimating the fraction of neutral hydrogen, xHI, on the line of sight to the host galaxy of GRB 210905A by fitting the shape of the Lyman-alpha damping wing of the afterglow spectrum. The X-shooter spectrum has a high signal to noise ratio, but the complex velocity structure of the host galaxy limits the precision of our conclusions. The statistically preferred model suggests a low neutral fraction with an 3-sigma upper limit of xHI < 0.15, indicating that the IGM around the GRB host galaxy is mostly ionized. We discuss complications in current analyses and potential avenues for future studies of the progression of the EoR and its evolution with redshift., Comment: 12 pages, 11 figures, submitted to Monthly Notices of the Royal Astronomical Society
Published: 2024

4. Fires in the deep: The luminosity distribution of early-time gamma-ray-burst afterglows in light of the Gamow Explorer sensitivity requirements

Author: Kann, D. A., White, N. E., Ghirlanda, G., Oates, S. R., Melandri, A., Jelinek, M., Postigo, A. de Ugarte, Levan, A. J., Martin-Carrillo, A., Paek, G. S. -H., Izzo, L., Blazek, M., Thone, C., Fernandez, J. F. Agui, Salvaterra, R., Tanvir, N. R., Chang, T. -C., O'Brien, P., Rossi, A., Perley, D. A., Im, M., Malesani, D. B., Antonelli, A., Covino, S., Choi, C., D'Avanzo, P., D'Elia, V., Dichiara, S., Fausey, H. M., Fugazza, D., Gomboc, A., Gorski, K. M., Granot, J., Guidorzi, C., Hanlon, L., Hartmann, D. H., Hudec, R., Jun, H. D., Kim, J., Kim, Y., Klose, S., Kluzniak, W., Kobayashi, S., Kouveliotou, C., Lidz, A., Marongiu, M., Martone, R., Meintjes, P., Mundell, C. G., Murphy, D., Nalewajko, K., Park, W. -K., Sz'ecsi, D., Smith, R. J., Stecklum, B., Steele, I. A., Strobl, J., Sung, H. -I, Updike, A., Urata, Y., van der Horst, A. J., Kann, D. A., White, N. E., Ghirlanda, G., Oates, S. R., Melandri, A., Jelinek, M., Postigo, A. de Ugarte, Levan, A. J., Martin-Carrillo, A., Paek, G. S. -H., Izzo, L., Blazek, M., Thone, C., Fernandez, J. F. Agui, Salvaterra, R., Tanvir, N. R., Chang, T. -C., O'Brien, P., Rossi, A., Perley, D. A., Im, M., Malesani, D. B., Antonelli, A., Covino, S., Choi, C., D'Avanzo, P., D'Elia, V., Dichiara, S., Fausey, H. M., Fugazza, D., Gomboc, A., Gorski, K. M., Granot, J., Guidorzi, C., Hanlon, L., Hartmann, D. H., Hudec, R., Jun, H. D., Kim, J., Kim, Y., Klose, S., Kluzniak, W., Kobayashi, S., Kouveliotou, C., Lidz, A., Marongiu, M., Martone, R., Meintjes, P., Mundell, C. G., Murphy, D., Nalewajko, K., Park, W. -K., Sz'ecsi, D., Smith, R. J., Stecklum, B., Steele, I. A., Strobl, J., Sung, H. -I, Updike, A., Urata, Y., and van der Horst, A. J.
Abstract: Gamma-ray bursts (GRBs) are ideal probes of the Universe at high redshift (z > 5), pinpointing the locations of the earliest star-forming galaxies and providing bright backlights that can be used to spectrally fingerprint the intergalactic medium and host galaxy during the period of reionization. Future missions such as Gamow Explorer are being proposed to unlock this potential by increasing the rate of identification of high-z GRBs to rapidly trigger observations from 6-10 m ground telescopes, JWST, and the Extremely Large Telescopes. Gamow was proposed to the NASA 2021 Medium-Class Explorer (MIDEX) program as a fast-slewing satellite featuring a wide-field lobster-eye X-ray telescope (LEXT) to detect and localize GRBs, and a 30 cm narrow-field multi-channel photo-z infrared telescope (PIRT) to measure their photometric redshifts using the Lyman-alpha dropout technique. To derive the PIRT sensitivity requirement we compiled a complete sample of GRB optical-near-infrared afterglows from 2008 to 2021, adding a total of 66 new afterglows to our earlier sample, including all known high-z GRB afterglows. We performed full light-curve and spectral-energy-distribution analyses of these afterglows to derive their true luminosity at very early times. For all the light curves, where possible, we determined the brightness at the time of the initial finding chart of Gamow, at different high redshifts and in different NIR bands. We then followed the evolution of the luminosity to predict requirements for ground and space-based follow-up. We find that a PIRT sensitivity of 15 micro-Jy (21 mag AB) in a 500 s exposure simultaneously in five NIR bands within 1000s of the GRB trigger will meet the Gamow mission requirement to recover > 80% of all redshifts at z > 5., Comment: 44 pages, 10 figures, 1 table. Accepted for publication in Astronomy and Astrophysics 15 Feb 2024. Abstract abridged for arXiv
Published: 2024

5. Varying linear polarisation in the dust-free GRB 210610B

Author: Fernández, J. F. Agüí, Postigo, A. de Ugarte, Thöne, C. C., Kobayashi, S., Rossi, A., Toma, K., Jelínek, M., Kann, D. A., Covino, S., Wiersema, K., Hartmann, D., Jakobsson, P., Martin-Carrillo, A., Melandri, A., De Pasquale, M., Pugliese, G., Savaglio, S., Starling, R. L. C., Štrobl, J., Della Valle, M., de Wet, S., Zafar, T., Fernández, J. F. Agüí, Postigo, A. de Ugarte, Thöne, C. C., Kobayashi, S., Rossi, A., Toma, K., Jelínek, M., Kann, D. A., Covino, S., Wiersema, K., Hartmann, D., Jakobsson, P., Martin-Carrillo, A., Melandri, A., De Pasquale, M., Pugliese, G., Savaglio, S., Starling, R. L. C., Štrobl, J., Della Valle, M., de Wet, S., and Zafar, T.
Abstract: Long gamma ray bursts (GRBs) are produced by the collapse of some very massive stars, which emit ultra-relativistic jets. When the jets collide with the interstellar medium they decelerate and generate the so-called afterglow emission, which has been observed to be polarised. In this work we study the polarimetric evolution of GRB 210610B afterglow, at $z = 1.1341$. This allows to evaluate the role of geometric and/or magnetic mechanisms in the GRB afterglow polarisation. We observed GRB 210610B using imaging polarimetry with CAFOS on the 2.2 m Calar Alto Telescope and FORS2 on the 4 $\times$ 8.1 m Very Large Telescope. Complementary optical spectroscopy was obtained with OSIRIS on the 10.4 m Gran Telescopio Canarias. We study the GRB light-curve from X-rays to optical bands and the Spectral Energy Distribution (SED). This allows us to strongly constrain the line-of-sight extinction. Finally, we study the GRB host galaxy using optical/NIR data to fit the SED and derive its integrated properties. GRB 210610B had a bright afterglow with a negligible line-of-sight extinction. Polarimetry was obtained at three epochs: during an early plateau phase, at the time when the light curve breaks, and after the light curve steepened. We observe an initial polarisation of $\sim 4\%$ that goes to zero at the time of the break, and then increases again to $\sim 2\%$ with a change of the position angle of $54 \pm 9$ deg. The spectrum show features with very low equivalent widths, indicating a small amount of material in the line-of-sight within the host. The lack of dust and the low amount of material on the line-of-sight to GRB 210610B allow us to study the intrinsic polarisation of the GRB optical afterglow. We find the GRB polarisation signals are consistent with ordered magnetic fields in refreshed shock or/and hydrodynamics-scale turbulent fields in the forward shock., Comment: 17 pages, 7 figures, 5 tables. Accepted for publication in Astronomy and Astrophysics 23 Feb 2024
Published: 2024

6. Heavy-element production in a compact object merger observed by JWST

Author: Levan, Andrew J., Gompertz, Benjamin P., Salafia, Om Sharan, Bulla, Mattia, Burns, Eric, Hotokezaka, Kenta, Izzo, Luca, Lamb, Gavin P., Malesani, Daniele B., Oates, Samantha R., Ravasio, Maria Edvige, Rouco Escorial, Alicia, Schneider, Benjamin, Sarin, Nikhil, Schulze, Steve, Tanvir, Nial R., Ackley, Kendall, Anderson, Gemma, Brammer, Gabriel B., Christensen, Lise, Dhillon, Vikram S., Evans, Phil A., Fausnaugh, Michael, Fong, Wen-fai, Fruchter, Andrew S., Fryer, Chris, Fynbo, Johan P. U., Gaspari, Nicola, Heintz, Kasper E., Hjorth, Jens, Kennea, Jamie A., Kennedy, Mark R., Laskar, Tanmoy, Leloudas, Giorgos, Mandel, Ilya, Martin-carrillo, Antonio, Metzger, Brian D., Nicholl, Matt, Nugent, Anya, Palmerio, Jesse T., Pugliese, Giovanna, Rastinejad, Jillian, Rhodes, Lauren, Rossi, Andrea, Saccardi, Andrea, Smartt, Stephen J., Stevance, Heloise F., Tohuvavohu, Aaron, Van Der Horst, Alexander, Vergani, Susanna D., Watson, Darach, Barclay, Thomas, Bhirombhakdi, Kornpob, Breedt, Elmé, Breeveld, Alice A., Brown, Alexander J., Campana, Sergio, Chrimes, Ashley A., D’avanzo, Paolo, D’elia, Valerio, De Pasquale, Massimiliano, Dyer, Martin J., Galloway, Duncan K., Garbutt, James A., Green, Matthew J., Hartmann, Dieter H., Jakobsson, Páll, Kerry, Paul, Kouveliotou, Chryssa, Langeroodi, Danial, Le Floc’h, Emeric, Leung, James K., Littlefair, Stuart P., Munday, James, O’brien, Paul, Parsons, Steven G., Pelisoli, Ingrid, Sahman, David I., Salvaterra, Ruben, Sbarufatti, Boris, Steeghs, Danny, Tagliaferri, Gianpiero, Thöne, Christina C., De Ugarte Postigo, Antonio, Kann, David Alexander, Levan, Andrew J., Gompertz, Benjamin P., Salafia, Om Sharan, Bulla, Mattia, Burns, Eric, Hotokezaka, Kenta, Izzo, Luca, Lamb, Gavin P., Malesani, Daniele B., Oates, Samantha R., Ravasio, Maria Edvige, Rouco Escorial, Alicia, Schneider, Benjamin, Sarin, Nikhil, Schulze, Steve, Tanvir, Nial R., Ackley, Kendall, Anderson, Gemma, Brammer, Gabriel B., Christensen, Lise, Dhillon, Vikram S., Evans, Phil A., Fausnaugh, Michael, Fong, Wen-fai, Fruchter, Andrew S., Fryer, Chris, Fynbo, Johan P. U., Gaspari, Nicola, Heintz, Kasper E., Hjorth, Jens, Kennea, Jamie A., Kennedy, Mark R., Laskar, Tanmoy, Leloudas, Giorgos, Mandel, Ilya, Martin-carrillo, Antonio, Metzger, Brian D., Nicholl, Matt, Nugent, Anya, Palmerio, Jesse T., Pugliese, Giovanna, Rastinejad, Jillian, Rhodes, Lauren, Rossi, Andrea, Saccardi, Andrea, Smartt, Stephen J., Stevance, Heloise F., Tohuvavohu, Aaron, Van Der Horst, Alexander, Vergani, Susanna D., Watson, Darach, Barclay, Thomas, Bhirombhakdi, Kornpob, Breedt, Elmé, Breeveld, Alice A., Brown, Alexander J., Campana, Sergio, Chrimes, Ashley A., D’avanzo, Paolo, D’elia, Valerio, De Pasquale, Massimiliano, Dyer, Martin J., Galloway, Duncan K., Garbutt, James A., Green, Matthew J., Hartmann, Dieter H., Jakobsson, Páll, Kerry, Paul, Kouveliotou, Chryssa, Langeroodi, Danial, Le Floc’h, Emeric, Leung, James K., Littlefair, Stuart P., Munday, James, O’brien, Paul, Parsons, Steven G., Pelisoli, Ingrid, Sahman, David I., Salvaterra, Ruben, Sbarufatti, Boris, Steeghs, Danny, Tagliaferri, Gianpiero, Thöne, Christina C., De Ugarte Postigo, Antonio, and Kann, David Alexander
Published: 2024

7. Heavy-element production in a compact object merger observed by JWST

Author: Levan, Andrew J., Gompertz, Benjamin P., Salafia, Om Sharan, Bulla, Mattia, Burns, Eric, Hotokezaka, Kenta, Izzo, Luca, Lamb, Gavin P., Malesani, Daniele B., Oates, Samantha R., Ravasio, Maria Edvige, Rouco Escorial, Alicia, Schneider, Benjamin, Sarin, Nikhil, Schulze, Steve, Tanvir, Nial R., Ackley, Kendall, Anderson, Gemma, Brammer, Gabriel B., Christensen, Lise, Dhillon, Vikram S., Evans, Phil A., Fausnaugh, Michael, Fong, Wen-fai, Fruchter, Andrew S., Fryer, Chris, Fynbo, Johan P. U., Gaspari, Nicola, Heintz, Kasper E., Hjorth, Jens, Kennea, Jamie A., Kennedy, Mark R., Laskar, Tanmoy, Leloudas, Giorgos, Mandel, Ilya, Martin-carrillo, Antonio, Metzger, Brian D., Nicholl, Matt, Nugent, Anya, Palmerio, Jesse T., Pugliese, Giovanna, Rastinejad, Jillian, Rhodes, Lauren, Rossi, Andrea, Saccardi, Andrea, Smartt, Stephen J., Stevance, Heloise F., Tohuvavohu, Aaron, Van Der Horst, Alexander, Vergani, Susanna D., Watson, Darach, Barclay, Thomas, Bhirombhakdi, Kornpob, Breedt, Elmé, Breeveld, Alice A., Brown, Alexander J., Campana, Sergio, Chrimes, Ashley A., D’avanzo, Paolo, D’elia, Valerio, De Pasquale, Massimiliano, Dyer, Martin J., Galloway, Duncan K., Garbutt, James A., Green, Matthew J., Hartmann, Dieter H., Jakobsson, Páll, Kerry, Paul, Kouveliotou, Chryssa, Langeroodi, Danial, Le Floc’h, Emeric, Leung, James K., Littlefair, Stuart P., Munday, James, O’brien, Paul, Parsons, Steven G., Pelisoli, Ingrid, Sahman, David I., Salvaterra, Ruben, Sbarufatti, Boris, Steeghs, Danny, Tagliaferri, Gianpiero, Thöne, Christina C., De Ugarte Postigo, Antonio, Kann, David Alexander, Levan, Andrew J., Gompertz, Benjamin P., Salafia, Om Sharan, Bulla, Mattia, Burns, Eric, Hotokezaka, Kenta, Izzo, Luca, Lamb, Gavin P., Malesani, Daniele B., Oates, Samantha R., Ravasio, Maria Edvige, Rouco Escorial, Alicia, Schneider, Benjamin, Sarin, Nikhil, Schulze, Steve, Tanvir, Nial R., Ackley, Kendall, Anderson, Gemma, Brammer, Gabriel B., Christensen, Lise, Dhillon, Vikram S., Evans, Phil A., Fausnaugh, Michael, Fong, Wen-fai, Fruchter, Andrew S., Fryer, Chris, Fynbo, Johan P. U., Gaspari, Nicola, Heintz, Kasper E., Hjorth, Jens, Kennea, Jamie A., Kennedy, Mark R., Laskar, Tanmoy, Leloudas, Giorgos, Mandel, Ilya, Martin-carrillo, Antonio, Metzger, Brian D., Nicholl, Matt, Nugent, Anya, Palmerio, Jesse T., Pugliese, Giovanna, Rastinejad, Jillian, Rhodes, Lauren, Rossi, Andrea, Saccardi, Andrea, Smartt, Stephen J., Stevance, Heloise F., Tohuvavohu, Aaron, Van Der Horst, Alexander, Vergani, Susanna D., Watson, Darach, Barclay, Thomas, Bhirombhakdi, Kornpob, Breedt, Elmé, Breeveld, Alice A., Brown, Alexander J., Campana, Sergio, Chrimes, Ashley A., D’avanzo, Paolo, D’elia, Valerio, De Pasquale, Massimiliano, Dyer, Martin J., Galloway, Duncan K., Garbutt, James A., Green, Matthew J., Hartmann, Dieter H., Jakobsson, Páll, Kerry, Paul, Kouveliotou, Chryssa, Langeroodi, Danial, Le Floc’h, Emeric, Leung, James K., Littlefair, Stuart P., Munday, James, O’brien, Paul, Parsons, Steven G., Pelisoli, Ingrid, Sahman, David I., Salvaterra, Ruben, Sbarufatti, Boris, Steeghs, Danny, Tagliaferri, Gianpiero, Thöne, Christina C., De Ugarte Postigo, Antonio, and Kann, David Alexander
Published: 2024

8. A search for the afterglows, kilonovae, and host galaxies of two short GRBs: GRB 211106A and GRB 211227A

Author: Ferro, M, Brivio, R, D'Avanzo, P, Rossi, A, Izzo, L, Campana, S, Christensen, L, Dinatolo, M, Hussein, S, Levan, A, Melandri, A, Bernardini, M, Covino, S, D'Elia, V, Della Valle, M, De Pasquale, M, Gompertz, B, Hartmann, D, Heintz, K, Jakobsson, P, Kouveliotou, C, Malesani, D, Martin-Carrillo, A, Nava, L, Nicuesa Guelbenzu, A, Pugliese, G, Salvaggio, C, Salvaterra, R, Savaglio, S, Sbarrato, T, Tanvir, N, Wijers, R, Zafar, T, Ferro M., Brivio R., D'Avanzo P., Rossi A., Izzo L., Campana S., Christensen L., Dinatolo M., Hussein S., Levan A. J., Melandri A., Bernardini M. G., Covino S., D'Elia V., Della Valle M., De Pasquale M., Gompertz B. P., Hartmann D., Heintz K. E., Jakobsson P., Kouveliotou C., Malesani D. B., Martin-Carrillo A., Nava L., Nicuesa Guelbenzu A., Pugliese G., Salvaggio C., Salvaterra R., Savaglio S., Sbarrato T., Tanvir N. R., Wijers R. A. M. J., Zafar T., Ferro, M, Brivio, R, D'Avanzo, P, Rossi, A, Izzo, L, Campana, S, Christensen, L, Dinatolo, M, Hussein, S, Levan, A, Melandri, A, Bernardini, M, Covino, S, D'Elia, V, Della Valle, M, De Pasquale, M, Gompertz, B, Hartmann, D, Heintz, K, Jakobsson, P, Kouveliotou, C, Malesani, D, Martin-Carrillo, A, Nava, L, Nicuesa Guelbenzu, A, Pugliese, G, Salvaggio, C, Salvaterra, R, Savaglio, S, Sbarrato, T, Tanvir, N, Wijers, R, Zafar, T, Ferro M., Brivio R., D'Avanzo P., Rossi A., Izzo L., Campana S., Christensen L., Dinatolo M., Hussein S., Levan A. J., Melandri A., Bernardini M. G., Covino S., D'Elia V., Della Valle M., De Pasquale M., Gompertz B. P., Hartmann D., Heintz K. E., Jakobsson P., Kouveliotou C., Malesani D. B., Martin-Carrillo A., Nava L., Nicuesa Guelbenzu A., Pugliese G., Salvaggio C., Salvaterra R., Savaglio S., Sbarrato T., Tanvir N. R., Wijers R. A. M. J., and Zafar T.
Abstract: Context. GRB 211106A and GRB 211227A are two recent gamma-ray bursts (GRBs) whose initial X-ray position enabled us to possibly associate them with bright, low-redshift galaxies (z < 0.7). The prompt emission properties suggest that GRB 211106A is a genuine short-duration GRB and GRB 211227A is a short GRB with extended emission. Therefore, they are likely to be produced by a compact binary merger. However, a classification based solely on the prompt emission properties can be misleading. Aims. The possibility of having two short GRBs occurring in the local Universe makes them ideal targets for the search of associated kilonova (KN) emission and for detailed studies of the host galaxy properties. Methods. We carried out deep optical and near-infrared (NIR) follow-up with the ESO-VLT FORS2, HAWK-I, and MUSE instruments for GRB 211106A and with ESO-VLT FORS2 and X-shooter for GRB 211227A, starting from hours after the X-ray afterglow discovery up to days later. We performed photometric analysis to look for afterglow and KN emissions associated with the bursts, together with imaging and spectroscopic observations of the host galaxy candidates. We compared the results obtained from the optical/NIR observations with the available Swift X-Ray Telescope (XRT) and others high-energy data of both events. Results. For both GRBs we placed deep limits to the optical/NIR afterglow and KN emission. We identified their associated host galaxies, GRB 211106A at a photometric redshift z = 0.64, GRB 211227A at a spectroscopic z = 0.228. From MUSE and X-shooter spectra we derived the host galaxy properties, which turned out to be consistent with short GRBs typical hosts. We also compared the properties of GRB 211106A and GRB 211227A with those of the short GRBs belonging to the S-BAT4 sample, here extended up to December 2021, in order to further investigate the nature of these two bursts. Conclusions. Our study of the prompt and afterglow phase of the two GRBs, together with the an
Published: 2023

9. The ultra-long GRB 220627A at z = 3.08

Author: Wet, S. de, Izzo, L., Groot, P.J., Bisero, S., D’Elia, V., Pasquale, M. De, Hartmann, D.H., Heintz, K.E., Jakobsson, P., Laskar, T., Levan, Andrew, Martin-Carrillo, A., Melandri, A., Guelbenzu, A. Nicuesa, Pugliese, G., Rossi, A, Saccardi, A., Savaglio, S., Schady, P., Tanvir, N.R., Eerten, H. van, Vergani, S.D., Wet, S. de, Izzo, L., Groot, P.J., Bisero, S., D’Elia, V., Pasquale, M. De, Hartmann, D.H., Heintz, K.E., Jakobsson, P., Laskar, T., Levan, Andrew, Martin-Carrillo, A., Melandri, A., Guelbenzu, A. Nicuesa, Pugliese, G., Rossi, A, Saccardi, A., Savaglio, S., Schady, P., Tanvir, N.R., Eerten, H. van, and Vergani, S.D.
Abstract: Contains fulltext : 296445.pdf (Publisher’s version ) (Open Access)
Published: 2023

10. A search for the afterglows, kilonovae, and host galaxies of two short GRBs: GRB 211106A and GRB 211227A

Author: Ferro, M., Brivio, R., D’Avanzo, P., Rossi, A, Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A.J., Melandri, A., Bernardini, M.G., Covino, S., D’Elia, V., Della Valle, M., Pasquale, M. De, Gompertz, B.P., Hartmann, D., Heintz, K.E., Jakobsson, P., Kouveliotou, C., Malesani, D.B., Martin-Carrillo, A., Nava, L., Nicuesa Guelbenzu, A., Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N.R., Wijers, R.A.M.J., Zafar, T., Ferro, M., Brivio, R., D’Avanzo, P., Rossi, A, Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A.J., Melandri, A., Bernardini, M.G., Covino, S., D’Elia, V., Della Valle, M., Pasquale, M. De, Gompertz, B.P., Hartmann, D., Heintz, K.E., Jakobsson, P., Kouveliotou, C., Malesani, D.B., Martin-Carrillo, A., Nava, L., Nicuesa Guelbenzu, A., Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N.R., Wijers, R.A.M.J., and Zafar, T.
Abstract: Item does not contain fulltext
Published: 2023

11. The ultra-long GRB 220627A at z = 3.08

Author: De Wet, S., Izzo, L., Groot, P. J., Bisero, S., D’elia, V., De Pasquale, M., Hartmann, D. H., Heintz, K. E., Jakobsson, P., Laskar, T., Levan, A., Martin-carrillo, A., Melandri, A., Nicuesa Guelbenzu, A., Pugliese, G., Rossi, A., Saccardi, A., Savaglio, S., Schady, P., Tanvir, N. R., Van Eerten, H., Vergani, S. D., De Wet, S., Izzo, L., Groot, P. J., Bisero, S., D’elia, V., De Pasquale, M., Hartmann, D. H., Heintz, K. E., Jakobsson, P., Laskar, T., Levan, A., Martin-carrillo, A., Melandri, A., Nicuesa Guelbenzu, A., Pugliese, G., Rossi, A., Saccardi, A., Savaglio, S., Schady, P., Tanvir, N. R., Van Eerten, H., and Vergani, S. D.
Published: 2023

12. A search for the afterglows, kilonovae, and host galaxies of two short GRBs: GRB 211106A and GRB 211227A

Author: Ferro, M., Brivio, R., D'Avanzo, P., Rossi, A., Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A. J., Melandri, A., Bernardini, M. G., Covino, S., D'Elia, V., Della Valle, M., De Pasquale, M., Gompertz, B. P., Hartmann, D., Heintz, K. E., Jakobsson, P., Kouveliotou, C., Malesani, D. B., Martin-Carrillo, A., Nava, L., Guelbenzu, A. Nicuesa, Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N. R., Wijers, R. A. M. J., Zafar, T., Ferro, M., Brivio, R., D'Avanzo, P., Rossi, A., Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A. J., Melandri, A., Bernardini, M. G., Covino, S., D'Elia, V., Della Valle, M., De Pasquale, M., Gompertz, B. P., Hartmann, D., Heintz, K. E., Jakobsson, P., Kouveliotou, C., Malesani, D. B., Martin-Carrillo, A., Nava, L., Guelbenzu, A. Nicuesa, Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N. R., Wijers, R. A. M. J., and Zafar, T.
Abstract: Context: GRB 211106A and GRB 211227A are recent gamma-ray bursts (GRBs) with initial X-ray positions suggesting associations with nearby galaxies (z < 0.7). Their prompt emission characteristics indicate GRB 211106A is a short-duration GRB and GRB 211227A is a short GRB with extended emission, likely originating from compact binary mergers. However, classifying solely based on prompt emission can be misleading. Aims: These short GRBs in the local Universe offer opportunities to search for associated kilonova (KN) emission and study host galaxy properties in detail. Methods: We conducted deep optical and NIR follow-up using ESO-VLT FORS2, HAWK-I, and MUSE for GRB 211106A, and ESO-VLT FORS2 and X-Shooter for GRB 211227A, starting shortly after the X-ray afterglow detection. We performed photometric analysis to look for afterglow and KN emissions associated with the bursts, along with host galaxy imaging and spectroscopy. Optical/NIR results were compared with Swift X-Ray Telescope (XRT) and other high-energy data. Results: For both GRBs we placed deep limits to the optical/NIR afterglow and KN emission. Host galaxies were identified: GRB 211106A at photometric z = 0.64 and GRB 211227A at spectroscopic z = 0.228. Host galaxy properties aligned with typical short GRB hosts. We also compared the properties of the bursts with the S-BAT4 sample to further examined the nature of these events. Conclusions: Study of prompt and afterglow phases, along with host galaxy analysis, confirms GRB 211106A as a short GRB and GRB 211227A as a short GRB with extended emission. The absence of optical/NIR counterparts is likely due to local extinction for GRB 211106A and a faint kilonova for GRB 211227A., Comment: Accepted to A&A on 08 August 2023, 21 pages, 24 figures
Published: 2023
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13. The ultra-long GRB 220627A at z=3.08

Author: de Wet, S., Izzo, L., Groot, P. J., Bisero, S., D'Elia, V., De Pasquale, M., Hartmann, D. H., Heintz, K. E., Jakobsson, P., Laskar, T., Levan, A., Martin-Carrillo, A., Melandri, A., Guelbenzu, A. Nicuesa, Pugliese, G., Rossi, A., Saccardi, A., Savaglio, S., Schady, P., Tanvir, N. R., van Eerten, H., Vergani, S., de Wet, S., Izzo, L., Groot, P. J., Bisero, S., D'Elia, V., De Pasquale, M., Hartmann, D. H., Heintz, K. E., Jakobsson, P., Laskar, T., Levan, A., Martin-Carrillo, A., Melandri, A., Guelbenzu, A. Nicuesa, Pugliese, G., Rossi, A., Saccardi, A., Savaglio, S., Schady, P., Tanvir, N. R., van Eerten, H., and Vergani, S.
Abstract: GRB 220627A is a rare burst with two distinct gamma-ray emission episodes separated by almost 1000 s that triggered the Fermi Gamma-ray Burst Monitor twice. High-energy GeV emission was detected by the Fermi Large Area Telescope coincident with the first emission episode but not the second. The discovery of the optical afterglow with MeerLICHT led to MUSE observations which secured the burst redshift to z=3.08, making this the most distant ultra-long gamma-ray burst (GRB) detected to date. The progenitors of some ultra-long GRBs have been suggested in the literature to be different to those of normal long GRBs. Our aim is to determine whether the afterglow and host properties of GRB 220627A agree with this interpretation. We performed empirical and theoretical modelling of the afterglow data within the external forward shock framework, and determined the metallicity of the GRB environment through modelling the absorption lines in the MUSE spectrum. Our optical data show evidence for a jet break in the light curve at ~1.2 days, while our theoretical modelling shows a preference for a homogeneous circumburst medium. Our forward shock parameters are typical for the wider GRB population, and we find that the environment of the burst is characterised by a sub-solar metallicity. Our observations and modelling of GRB 220627A do not suggest that a different progenitor compared to the progenitor of normal long GRBs is required. We find that more observations of ultra-long GRBs are needed to determine if they form a separate population with distinct prompt and afterglow features, and possibly distinct progenitors., Comment: 17 pages, accepted for publication in A&A
Published: 2023
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14. JWST detection of heavy neutron capture elements in a compact object merger

Author: Levan, A., Gompertz, B. P., Salafia, O. S., Bulla, M., Burns, E., Hotokezaka, K., Izzo, L., Lamb, G. P., Malesani, D. B., Oates, S. R., Ravasio, M. E., Escorial, A. Rouco, Schneider, B., Sarin, N., Schulze, S., Tanvir, N. R., Ackley, K., Anderson, G., Brammer, G. B., Christensen, L., Dhillon, V. S., Evans, P. A., Fausnaugh, M., Fong, W. -F., Fruchter, A. S., Fryer, C., Fynbo, J. P. U., Gaspari, N., Heintz, K. E., Hjorth, J., Kennea, J. A., Kennedy, M. R., Laskar, T., Leloudas, G., Mandel, I., Martin-Carrillo, A., Metzger, B. D., Nicholl, M., Nugent, A., Palmerio, J. T., Pugliese, G., Rastinejad, J., Rhodes, L., Rossi, A., Smartt, S. J., Stevance, H. F., Tohuvavohu, A., van der Horst, A., Vergani, S. D., Watson, D., Barclay, T., Bhirombhakdi, K., Breedt, E., Breeveld, A. A., Brown, A. J., Campana, S., Chrimes, A. A., D'Avanzo, P., D'Elia, V., De Pasquale, M., Dyer, M. J., Galloway, D. K., Garbutt, J. A., Green, M. J., Hartmann, D. H., Jakobsson, P., Kerry, P., Langeroodi, D., Leung, J. K., Littlefair, S. P., Munday, J., O'Brien, P., Parsons, S. G., Pelisoli, I., Saccardi, A., Sahman, D. I., Salvaterra, R., Sbarufatti, B., Steeghs, D., Tagliaferri, G., Thöne, C. C., Postigo, A. de Ugarte, Kann, D. A., Levan, A., Gompertz, B. P., Salafia, O. S., Bulla, M., Burns, E., Hotokezaka, K., Izzo, L., Lamb, G. P., Malesani, D. B., Oates, S. R., Ravasio, M. E., Escorial, A. Rouco, Schneider, B., Sarin, N., Schulze, S., Tanvir, N. R., Ackley, K., Anderson, G., Brammer, G. B., Christensen, L., Dhillon, V. S., Evans, P. A., Fausnaugh, M., Fong, W. -F., Fruchter, A. S., Fryer, C., Fynbo, J. P. U., Gaspari, N., Heintz, K. E., Hjorth, J., Kennea, J. A., Kennedy, M. R., Laskar, T., Leloudas, G., Mandel, I., Martin-Carrillo, A., Metzger, B. D., Nicholl, M., Nugent, A., Palmerio, J. T., Pugliese, G., Rastinejad, J., Rhodes, L., Rossi, A., Smartt, S. J., Stevance, H. F., Tohuvavohu, A., van der Horst, A., Vergani, S. D., Watson, D., Barclay, T., Bhirombhakdi, K., Breedt, E., Breeveld, A. A., Brown, A. J., Campana, S., Chrimes, A. A., D'Avanzo, P., D'Elia, V., De Pasquale, M., Dyer, M. J., Galloway, D. K., Garbutt, J. A., Green, M. J., Hartmann, D. H., Jakobsson, P., Kerry, P., Langeroodi, D., Leung, J. K., Littlefair, S. P., Munday, J., O'Brien, P., Parsons, S. G., Pelisoli, I., Saccardi, A., Sahman, D. I., Salvaterra, R., Sbarufatti, B., Steeghs, D., Tagliaferri, G., Thöne, C. C., Postigo, A. de Ugarte, and Kann, D. A.
Abstract: The mergers of binary compact objects such as neutron stars and black holes are of central interest to several areas of astrophysics, including as the progenitors of gamma-ray bursts (GRBs), sources of high-frequency gravitational waves and likely production sites for heavy element nucleosynthesis via rapid neutron capture (the r-process). These heavy elements include some of great geophysical, biological and cultural importance, such as thorium, iodine and gold. Here we present observations of the exceptionally bright gamma-ray burst GRB 230307A. We show that GRB 230307A belongs to the class of long-duration gamma-ray bursts associated with compact object mergers, and contains a kilonova similar to AT2017gfo, associated with the gravitational-wave merger GW170817. We obtained James Webb Space Telescope mid-infrared (mid-IR) imaging and spectroscopy 29 and 61 days after the burst. The spectroscopy shows an emission line at 2.15 microns which we interpret as tellurium (atomic mass A=130), and a very red source, emitting most of its light in the mid-IR due to the production of lanthanides. These observations demonstrate that nucleosynthesis in GRBs can create r-process elements across a broad atomic mass range and play a central role in heavy element nucleosynthesis across the Universe., Comment: Submitted. Comments welcome! Nature (2023)
Published: 2023
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15. The broad-lined Type-Ic supernova SN 2022xxf with extraordinary two-humped light curves

Author: Kuncarayakti, H., Sollerman, J., Izzo, L., Maeda, K., Yang, S., Schulze, S., Angus, C. R., Aubert, M., Auchettl, K., Della Valle, M., Dessart, L., Hinds, K., Kankare, E., Kawabata, M., Lundqvist, P., Nakaoka, T., Perley, D., Raimundo, S. I., Strotjohann, N. L., Taguchi, K., Cai, Y. -Z., Charalampopoulos, P., Fang, Q., Fraser, M., Gutierrez, C. P., Imazawa, R., Kangas, T., Kawabata, K. S., Kotak, R., Kravtsov, T., Matilainen, K., Mattila, S., Moran, S., Murata, I., Salmaso, I., Anderson, J. P., Ashall, C., Bellm, E. C., Benetti, S., Chambers, K. C., Chen, T. -W., Coughlin, M., De Colle, F., Fremling, C., Galbany, L., Gal-Yam, A., Gromadzki, M., Groom, S. L., Hajela, A., Inserra, C., Kasliwal, M. M., Mahabal, A. A., Martin-Carrillo, A., Moore, T., Muller-Bravo, T. E., Nicholl, M., Ragosta, F., Riddle, R. L., Sharma, Y., Srivastav, S., Stritzinger, M. D., Wold, A., Young, D. R., Kuncarayakti, H., Sollerman, J., Izzo, L., Maeda, K., Yang, S., Schulze, S., Angus, C. R., Aubert, M., Auchettl, K., Della Valle, M., Dessart, L., Hinds, K., Kankare, E., Kawabata, M., Lundqvist, P., Nakaoka, T., Perley, D., Raimundo, S. I., Strotjohann, N. L., Taguchi, K., Cai, Y. -Z., Charalampopoulos, P., Fang, Q., Fraser, M., Gutierrez, C. P., Imazawa, R., Kangas, T., Kawabata, K. S., Kotak, R., Kravtsov, T., Matilainen, K., Mattila, S., Moran, S., Murata, I., Salmaso, I., Anderson, J. P., Ashall, C., Bellm, E. C., Benetti, S., Chambers, K. C., Chen, T. -W., Coughlin, M., De Colle, F., Fremling, C., Galbany, L., Gal-Yam, A., Gromadzki, M., Groom, S. L., Hajela, A., Inserra, C., Kasliwal, M. M., Mahabal, A. A., Martin-Carrillo, A., Moore, T., Muller-Bravo, T. E., Nicholl, M., Ragosta, F., Riddle, R. L., Sharma, Y., Srivastav, S., Stritzinger, M. D., Wold, A., and Young, D. R.
Abstract: We report on our study of supernova (SN) 2022xxf based on observations obtained during the first four months of its evolution. The light curves (LCs) display two humps of similar maximum brightness separated by 75 days, unprecedented for a broad-lined (BL) Type Ic supernova (SN IcBL). SN 2022xxf is the most nearby SN IcBL to date (in NGC 3705, $z = 0.0037$, at a distance of about 20 Mpc). Optical and near-infrared photometry and spectroscopy are used to identify the energy source powering the LC. Nearly 50 epochs of high signal-to-noise-ratio spectroscopy were obtained within 130 days, comprising an unparalleled dataset for a SN IcBL, and one of the best-sampled SN datasets to date. The global spectral appearance and evolution of SN 2022xxf points to typical SN Ic/IcBL, with broad features (up to $\sim14000$ km s$^{-1}$) and a gradual transition from the photospheric to the nebular phase. However, narrow emission lines (corresponding to $\sim1000-2500$ km s$^{-1}$) are present in the spectra from the time of the second rise, suggesting slower-moving circumstellar material (CSM). These lines are subtle, in comparison to the typical strong narrow lines of CSM-interacting SNe, for example, Type IIn, Ibn, and Icn, but some are readily noticeable at late times such as in Mg I $\lambda$5170 and [O I] $\lambda$5577. Unusually, the near-infrared spectra show narrow line peaks in a number of features formed by ions of O and Mg. We infer the presence of CSM that is free of H and He. We propose that the radiative energy from the ejecta-CSM interaction is a plausible explanation for the second LC hump. This interaction scenario is supported by the color evolution, which progresses to the blue as the light curve evolves along the second hump, and the slow second rise and subsequent rapid LC drop. (Abstract abridged), Comment: Accepted version
Published: 2023
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16. A magnetar giant flare in the nearby starburst galaxy M82

Author: Mereghetti, Sandro, Rigoselli, Michela, Salvaterra, Ruben, Pacholski, Dominik P., Rodi, James C., Gotz, Diego, Arrigoni, Edoardo, D'Avanzo, Paolo, Adami, Christophe, Bazzano, Angela, Bozzo, Enrico, Brivio, Riccardo, Campana, Sergio, Cappellaro, Enrico, Chenevez, Jerome, De Luise, Fiore, Ducci, Lorenzo, Esposito, Paolo, Ferrigno, Carlo, Ferro, Matteo, Israel, Gian Luca, Floc'h, Emeric Le, Martin-Carrillo, Antonio, Onori, Francesca, Rea, Nanda, Reguitti, Andrea, Savchenko, Volodymyr, Souami, Damya, Tartaglia, Leonardo, Thuillot, William, Tiengo, Andrea, Tomasella, Lina, Topinka, Martin, Turpin, Damien, Ubertini, Pietro, Mereghetti, Sandro, Rigoselli, Michela, Salvaterra, Ruben, Pacholski, Dominik P., Rodi, James C., Gotz, Diego, Arrigoni, Edoardo, D'Avanzo, Paolo, Adami, Christophe, Bazzano, Angela, Bozzo, Enrico, Brivio, Riccardo, Campana, Sergio, Cappellaro, Enrico, Chenevez, Jerome, De Luise, Fiore, Ducci, Lorenzo, Esposito, Paolo, Ferrigno, Carlo, Ferro, Matteo, Israel, Gian Luca, Floc'h, Emeric Le, Martin-Carrillo, Antonio, Onori, Francesca, Rea, Nanda, Reguitti, Andrea, Savchenko, Volodymyr, Souami, Damya, Tartaglia, Leonardo, Thuillot, William, Tiengo, Andrea, Tomasella, Lina, Topinka, Martin, Turpin, Damien, and Ubertini, Pietro
Abstract: Giant flares, short explosive events releasing up to 10$^{47}$ erg of energy in the gamma-ray band in less than one second, are the most spectacular manifestation of magnetars, young neutron stars powered by a very strong magnetic field, 10$^{14-15}$ G in the magnetosphere and possibly higher in the star interior. The rate of occurrence of these rare flares is poorly constrained, as only three have been seen from three different magnetars in the Milky Way and in the Large Magellanic Cloud in about 50 years since the beginning of gamma-ray astronomy. This sample can be enlarged by the discovery of extragalactic events, since for a fraction of a second giant flares reach peak luminosities above 10$^{46}$ erg/s, which makes them visible by current instruments up to a few tens of Mpc. However, at these distances they appear similar to, and difficult to distinguish from, regular short gamma-ray bursts (GRBs). The latter are much more energetic events, 10$^{50-53}$ erg, produced by compact binary mergers and originating at much larger distances. Indeed, only a few short GRBs have been proposed, with different levels of confidence, as magnetar giant flare candidates in nearby galaxies. Here we report the discovery of a short GRB positionally coincident with the central region of the starburst galaxy M82. Its spectral and timing properties, together with the limits on its X-ray and optical counterparts obtained a few hours after the event and the lack of an associated gravitational wave signal, qualify with high confidence this event as a giant flare from a magnetar in M82., Comment: Submitted version. New figures. Accepted for publication in Nature with minor modifications
Published: 2023

17. A search for the afterglows, kilonovae, and host galaxies of two short GRBs:GRB 211106A and GRB 211227A

Author: Ferro, M., Brivio, R., D’avanzo, P., Rossi, A., Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A. J., Melandri, A., Bernardini, M. G., Covino, S., D’elia, V., Della Valle, M., De Pasquale, M., Gompertz, B. P., Hartmann, D., Heintz, K. E., Jakobsson, P., Kouveliotou, C., Malesani, D. B., Martin-carrillo, A., Nava, L., Nicuesa Guelbenzu, A., Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N. R., Wijers, R. A. M. J., Zafar, T., Ferro, M., Brivio, R., D’avanzo, P., Rossi, A., Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A. J., Melandri, A., Bernardini, M. G., Covino, S., D’elia, V., Della Valle, M., De Pasquale, M., Gompertz, B. P., Hartmann, D., Heintz, K. E., Jakobsson, P., Kouveliotou, C., Malesani, D. B., Martin-carrillo, A., Nava, L., Nicuesa Guelbenzu, A., Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N. R., Wijers, R. A. M. J., and Zafar, T.
Published: 2023

18. The broad-lined Type-Ic supernova SN 2022xxf and its extraordinary two-humped light curves I. Signatures of H/He-free interaction in the first four months

Author: Kuncarayakti, H., Sollerman, J., Izzo, L., Maeda, K., Yang, S., Schulze, S., Angus, C. R., Aubert, M., Auchettl, K., Della Valle, M., Dessart, L., Hinds, K., Kankare, E., Kawabata, M., Lundqvist, P., Nakaoka, T., Perley, D., Raimundo, S. I., Strotjohann, N. L., Taguchi, K., Cai, Y.-z., Charalampopoulos, P., Fang, Q., Fraser, M., Gutiérrez, C. P., Imazawa, R., Kangas, T., Kawabata, K. S., Kotak, R., Kravtsov, T., Matilainen, K., Mattila, S., Moran, S., Murata, I., Salmaso, I., Anderson, J. P., Ashall, C., Bellm, E. C., Benetti, S., Chambers, K. C., Chen, T.-w., Coughlin, M., De Colle, F., Fremling, C., Galbany, L., Gal-yam, A., Gromadzki, M., Groom, S. L., Hajela, A., Inserra, C., Kasliwal, M. M., Mahabal, A. A., Martin-carrillo, A., Moore, T., Müller-bravo, T. E., Nicholl, M., Ragosta, F., Riddle, R. L., Sharma, Y., Srivastav, S., Stritzinger, M. D., Wold, A., Young, D. R., Kuncarayakti, H., Sollerman, J., Izzo, L., Maeda, K., Yang, S., Schulze, S., Angus, C. R., Aubert, M., Auchettl, K., Della Valle, M., Dessart, L., Hinds, K., Kankare, E., Kawabata, M., Lundqvist, P., Nakaoka, T., Perley, D., Raimundo, S. I., Strotjohann, N. L., Taguchi, K., Cai, Y.-z., Charalampopoulos, P., Fang, Q., Fraser, M., Gutiérrez, C. P., Imazawa, R., Kangas, T., Kawabata, K. S., Kotak, R., Kravtsov, T., Matilainen, K., Mattila, S., Moran, S., Murata, I., Salmaso, I., Anderson, J. P., Ashall, C., Bellm, E. C., Benetti, S., Chambers, K. C., Chen, T.-w., Coughlin, M., De Colle, F., Fremling, C., Galbany, L., Gal-yam, A., Gromadzki, M., Groom, S. L., Hajela, A., Inserra, C., Kasliwal, M. M., Mahabal, A. A., Martin-carrillo, A., Moore, T., Müller-bravo, T. E., Nicholl, M., Ragosta, F., Riddle, R. L., Sharma, Y., Srivastav, S., Stritzinger, M. D., Wold, A., and Young, D. R.
Published: 2023

19. The ultra-long GRB 220627A at z = 3.08

Author: De Wet, S., Izzo, L., Groot, P. J., Bisero, S., D’elia, V., De Pasquale, M., Hartmann, D. H., Heintz, K. E., Jakobsson, P., Laskar, T., Levan, A., Martin-carrillo, A., Melandri, A., Nicuesa Guelbenzu, A., Pugliese, G., Rossi, A., Saccardi, A., Savaglio, S., Schady, P., Tanvir, N. R., Van Eerten, H., Vergani, S. D., De Wet, S., Izzo, L., Groot, P. J., Bisero, S., D’elia, V., De Pasquale, M., Hartmann, D. H., Heintz, K. E., Jakobsson, P., Laskar, T., Levan, A., Martin-carrillo, A., Melandri, A., Nicuesa Guelbenzu, A., Pugliese, G., Rossi, A., Saccardi, A., Savaglio, S., Schady, P., Tanvir, N. R., Van Eerten, H., and Vergani, S. D.
Published: 2023

20. A search for the afterglows, kilonovae, and host galaxies of two short GRBs:GRB 211106A and GRB 211227A

Author: Ferro, M., Brivio, R., D’avanzo, P., Rossi, A., Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A. J., Melandri, A., Bernardini, M. G., Covino, S., D’elia, V., Della Valle, M., De Pasquale, M., Gompertz, B. P., Hartmann, D., Heintz, K. E., Jakobsson, P., Kouveliotou, C., Malesani, D. B., Martin-carrillo, A., Nava, L., Nicuesa Guelbenzu, A., Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N. R., Wijers, R. A. M. J., Zafar, T., Ferro, M., Brivio, R., D’avanzo, P., Rossi, A., Izzo, L., Campana, S., Christensen, L., Dinatolo, M., Hussein, S., Levan, A. J., Melandri, A., Bernardini, M. G., Covino, S., D’elia, V., Della Valle, M., De Pasquale, M., Gompertz, B. P., Hartmann, D., Heintz, K. E., Jakobsson, P., Kouveliotou, C., Malesani, D. B., Martin-carrillo, A., Nava, L., Nicuesa Guelbenzu, A., Pugliese, G., Salvaggio, C., Salvaterra, R., Savaglio, S., Sbarrato, T., Tanvir, N. R., Wijers, R. A. M. J., and Zafar, T.
Published: 2023

21. The broad-lined Type-Ic supernova SN 2022xxf and its extraordinary two-humped light curves I. Signatures of H/He-free interaction in the first four months

Author: Kuncarayakti, H., Sollerman, J., Izzo, L., Maeda, K., Yang, S., Schulze, S., Angus, C. R., Aubert, M., Auchettl, K., Della Valle, M., Dessart, L., Hinds, K., Kankare, E., Kawabata, M., Lundqvist, P., Nakaoka, T., Perley, D., Raimundo, S. I., Strotjohann, N. L., Taguchi, K., Cai, Y.-z., Charalampopoulos, P., Fang, Q., Fraser, M., Gutiérrez, C. P., Imazawa, R., Kangas, T., Kawabata, K. S., Kotak, R., Kravtsov, T., Matilainen, K., Mattila, S., Moran, S., Murata, I., Salmaso, I., Anderson, J. P., Ashall, C., Bellm, E. C., Benetti, S., Chambers, K. C., Chen, T.-w., Coughlin, M., De Colle, F., Fremling, C., Galbany, L., Gal-yam, A., Gromadzki, M., Groom, S. L., Hajela, A., Inserra, C., Kasliwal, M. M., Mahabal, A. A., Martin-carrillo, A., Moore, T., Müller-bravo, T. E., Nicholl, M., Ragosta, F., Riddle, R. L., Sharma, Y., Srivastav, S., Stritzinger, M. D., Wold, A., Young, D. R., Kuncarayakti, H., Sollerman, J., Izzo, L., Maeda, K., Yang, S., Schulze, S., Angus, C. R., Aubert, M., Auchettl, K., Della Valle, M., Dessart, L., Hinds, K., Kankare, E., Kawabata, M., Lundqvist, P., Nakaoka, T., Perley, D., Raimundo, S. I., Strotjohann, N. L., Taguchi, K., Cai, Y.-z., Charalampopoulos, P., Fang, Q., Fraser, M., Gutiérrez, C. P., Imazawa, R., Kangas, T., Kawabata, K. S., Kotak, R., Kravtsov, T., Matilainen, K., Mattila, S., Moran, S., Murata, I., Salmaso, I., Anderson, J. P., Ashall, C., Bellm, E. C., Benetti, S., Chambers, K. C., Chen, T.-w., Coughlin, M., De Colle, F., Fremling, C., Galbany, L., Gal-yam, A., Gromadzki, M., Groom, S. L., Hajela, A., Inserra, C., Kasliwal, M. M., Mahabal, A. A., Martin-carrillo, A., Moore, T., Müller-bravo, T. E., Nicholl, M., Ragosta, F., Riddle, R. L., Sharma, Y., Srivastav, S., Stritzinger, M. D., Wold, A., and Young, D. R.
Published: 2023

22. A compact instrument for gamma-ray burst detection on a CubeSat platform II: Detailed design, assembly and validation

Author: Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Mangan, Joseph, Dunwoody, Rachel, Doyle, Maeve, O'Toole, Conor, Thompson, Joseph, Reilly, Jack, Walsh, Sarah, Shortt, Brian, Martin-Carrillo, Antonio, Hanlon, Lorraine, Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Mangan, Joseph, Dunwoody, Rachel, Doyle, Maeve, O'Toole, Conor, Thompson, Joseph, Reilly, Jack, Walsh, Sarah, Shortt, Brian, Martin-Carrillo, Antonio, and Hanlon, Lorraine
Abstract: The Gamma-ray Module, GMOD, is a miniaturised novel gamma-ray detector which will be the primary scientific payload on the Educational Irish Research Satellite (EIRSAT-1) 2U CubeSat mission. GMOD comprises a compact (25mm $\times$ 25mm $\times$ 40mm) cerium bromide scintillator coupled to a tiled array of 4$\times$4 silicon photomultipliers, with front-end readout provided by the IDE3380 SIPHRA. This paper presents the detailed GMOD design and the accommodation of the instrument within the restrictive CubeSat form factor. The electronic and mechanical interfaces are compatible with many off-the-shelf CubeSat systems and structures. The energy response of the GMOD engineering qualification model has been determined using radioactive sources, and an energy resolution of 5.4% at 662keV has been measured. EIRSAT-1 will perform on-board processing of GMOD data. Trigger results, including light-curves and spectra, will be incorporated into the spacecraft beacon and transmitted continuously. Inexpensive hardware can be used to decode the beacon signal, making the data accessible to a wide community. GMOD will have scientific capability for the detection of gamma-ray bursts, in addition to the educational and technology demonstration goals of the EIRSAT-1 mission. The detailed design and measurements to date demonstrate the capability of GMOD in low Earth orbit, the scalability of the design for larger CubeSats and as an element of future large gamma-ray missions., Comment: 31 pages, 16 figures. This is an author accepted manuscript of an article accepted for publication in Experimental Astronomy. The final open-access version will be available at: https://doi.org/10.1007/s10686-022-09842-z
Published: 2022
Full Text: View/download PDF

23. Update on the status of the Educational Irish Research Satellite (EIRSAT-1)

Author: Doyle, Maeve, Murphy, David, Reilly, Jack, Thompson, Joseph, Walsh, Sarah, Akarapu, Sai Krishna Reddy, Dunwoody, Rachel, Erkal, Jessica, Finneran, Gabriel, Mangan, Joseph, Marshall, Fergal, Salmon, Lána, Somers, Eoghan, Franchi, Loris, Ha, Lily, Palma, David, Ulyanov, Alexey, Martin Carrillo, Antonio, McBreen, Sheila, McKeown, David, O'Connor, William, Wall, Ronan, Hanlon, Lorraine, Doyle, Maeve, Murphy, David, Reilly, Jack, Thompson, Joseph, Walsh, Sarah, Akarapu, Sai Krishna Reddy, Dunwoody, Rachel, Erkal, Jessica, Finneran, Gabriel, Mangan, Joseph, Marshall, Fergal, Salmon, Lána, Somers, Eoghan, Franchi, Loris, Ha, Lily, Palma, David, Ulyanov, Alexey, Martin Carrillo, Antonio, McBreen, Sheila, McKeown, David, O'Connor, William, Wall, Ronan, and Hanlon, Lorraine
Abstract: The Educational Irish Research Satellite, EIRSAT-1, is a 2U CubeSat being implemented by a student-led team at University College Dublin, as part of the 2nd round of the European Space Agency’s Fly Your Satellite! programme. In development since 2017, the mission has several scientific, technological and outreach goals. It will fly an in-house developed antenna deployment module, along with three custom payloads, which are integrated with commercial off-the-shelf subsystems. In preparation for the flight model, a full-system engineering qualification model of the spacecraft has undergone an extensive period of test campaigns, including full functional tests, a mission test, and environmental testing at the European Space Agency’s CubeSat Support Facility in Redu, Belgium. Beyond the technical, educational, and capacity-building goals of the mission, EIRSAT-1 aims to inspire wider study of STEM subjects, while highlighting the importance of multidisciplinary teams and creating greater awareness of space in everyday life. A wide range of outreach activities are being undertaken to realise these aims. This paper provides a status update on key aspects of the EIRSAT-1 project and the next steps towards launch
Published: 2022

24. Thermal characterization testing of a robust and reliable thermal knife HDRM (Hold Down and Release Mechanism) for CubeSat deployables

Author: Thompson, Joseph, Murphy, David, Reilly, Jack, Salmon, Lána, Dunwoody, Rachel, Doyle, Maeve, Walsh, Sarah, Reddy Akarapu, Sai Krishna, Erkal, Jessica, Finneran, Gabriel, Mangan, Joseph, Marshall, Fergal, Franchi, Loris, Ha, Lily, Palma, David, Ulyanov, Alexey, Martin-Carrillo, Antonio, McBreen, Sheila, O'Connor, William, Wall, Ronan, Hanlon, Lorraine, McKeown, David, Thompson, Joseph, Murphy, David, Reilly, Jack, Salmon, Lána, Dunwoody, Rachel, Doyle, Maeve, Walsh, Sarah, Reddy Akarapu, Sai Krishna, Erkal, Jessica, Finneran, Gabriel, Mangan, Joseph, Marshall, Fergal, Franchi, Loris, Ha, Lily, Palma, David, Ulyanov, Alexey, Martin-Carrillo, Antonio, McBreen, Sheila, O'Connor, William, Wall, Ronan, Hanlon, Lorraine, and McKeown, David
Abstract: Thermal knife HDRMs (Hold Down and Release Mechanisms) are commonly used in CubeSats and other small satellites. However, detailed information on proven designs is difficult to find. Design of a robust and reliable mechanism can present technical challenges which may only become apparent during testing, and often only when tested in a space representative environment. A custom thermal knife HDRM was designed and built for the antenna deployment module of EIRSAT-1 to deploy four coil spring antenna elements, but the same or a similar design could be repurposed quite easily to release a wide range of CubeSat deployables. In this design resistors are used to cut dyneema lines. For robustness and reliability, the thermal response of the mechanism must be well understood. To reach the melting point of the dyneema (150C) the power dissipated in the resistors must often exceed the maximum rated value. Therefore, choosing the operating current and the burn time is a careful trade-off between ensuring that the resistor reliably cuts the dyneema line and ensuring that the resistor, solder joints, PCB and nearby components are not damaged by the high temperatures. These choices are further complicated by the requirement that the mechanism operates over a range of temperatures. A thermal vacuum test campaign was carried out to better understand and characterise the thermal behaviour of the EIRSAT-1 mechanism. For the test a model of the mechanism was built with several temperature sensors installed. Two of these sensors were installed directly on the body of the resistors using a thermally conductive epoxy. Burn tests were performed in vacuum at temperatures between -37C and +56C. The test shows many interesting results including the effect of the dyneema lines on the thermal response, the possibility of desoldering the burn resistors and a comparison between the performance at ambient and vacuum conditions. Finally, a summary is given of the key technical challenges associated
Published: 2022

25. A compact instrument for gamma-ray burst detection on a CubeSat platform II: Detailed design, assembly and validation

Author: Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Mangan, Joseph, Dunwoody, Rachel, Doyle, Maeve, O'Toole, Conor, Thompson, Joseph, Reilly, Jack, Walsh, Sarah, Shortt, Brian, Martin-Carrillo, Antonio, Hanlon, Lorraine, Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Mangan, Joseph, Dunwoody, Rachel, Doyle, Maeve, O'Toole, Conor, Thompson, Joseph, Reilly, Jack, Walsh, Sarah, Shortt, Brian, Martin-Carrillo, Antonio, and Hanlon, Lorraine
Abstract: The Gamma-ray Module, GMOD, is a miniaturised novel gamma-ray detector which will be the primary scientific payload on the Educational Irish Research Satellite (EIRSAT-1) 2U CubeSat mission. GMOD comprises a compact (25mm $\times$ 25mm $\times$ 40mm) cerium bromide scintillator coupled to a tiled array of 4$\times$4 silicon photomultipliers, with front-end readout provided by the IDE3380 SIPHRA. This paper presents the detailed GMOD design and the accommodation of the instrument within the restrictive CubeSat form factor. The electronic and mechanical interfaces are compatible with many off-the-shelf CubeSat systems and structures. The energy response of the GMOD engineering qualification model has been determined using radioactive sources, and an energy resolution of 5.4% at 662keV has been measured. EIRSAT-1 will perform on-board processing of GMOD data. Trigger results, including light-curves and spectra, will be incorporated into the spacecraft beacon and transmitted continuously. Inexpensive hardware can be used to decode the beacon signal, making the data accessible to a wide community. GMOD will have scientific capability for the detection of gamma-ray bursts, in addition to the educational and technology demonstration goals of the EIRSAT-1 mission. The detailed design and measurements to date demonstrate the capability of GMOD in low Earth orbit, the scalability of the design for larger CubeSats and as an element of future large gamma-ray missions., Comment: 31 pages, 16 figures. This is an author accepted manuscript of an article accepted for publication in Experimental Astronomy. The final open-access version will be available at: https://doi.org/10.1007/s10686-022-09842-z
Published: 2022
Full Text: View/download PDF

26. Teaching computational thinking to space science students

Author: Jeffrey, Robert, Lundy, Megan, Coffey, Deirdre, McBreen, Sheila, Martin-Carrillo, Antonio, Hanlon, Lorraine, Jeffrey, Robert, Lundy, Megan, Coffey, Deirdre, McBreen, Sheila, Martin-Carrillo, Antonio, and Hanlon, Lorraine
Abstract: Computational thinking is a key skill for space science graduates, who must apply advanced problem-solving skills to model complex systems, analyse big data sets, and develop control software for mission-critical space systems. We describe our work using Design Thinking to understand the challenges that students face in learning these skills. In the MSc Space Science & Technology at University College Dublin, we have used insights from this process to develop new teaching strategies, including improved assessment rubrics, supported by workshops promoting collaborative programming techniques. We argue that postgraduate- level space science courses play a valuable role in developing more advanced computational skills in early-career space scientists.
Published: 2022

27. The supernova of the MAGIC gamma-ray burst GRB190114C

Author: Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, Valerio, de Ugarte Postigo, A., De Pasquale, M., Filippenko, A., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., Watson, D., Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, Valerio, de Ugarte Postigo, A., De Pasquale, M., Filippenko, A., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., and Watson, D.
Abstract: We observed GRB 190114C (redshift z = 0.4245), the first gamma-ray burst (GRB) ever detected at TeV energies, at optical and near-infrared wavelengths with several ground-based telescopes and the Hubble Space Telescope, with the primary goal of studying its underlying supernova, SN 2019jrj. The monitoring spanned the time interval between 1.3 and 370 days after the burst, in the observer frame. We find that the afterglow emission can be modelled with a forward shock propagating in a uniform medium modified by time-variable extinction along the line of sight. A jet break could be present after 7 rest-frame days, and accordingly the maximum luminosity of the underlying supernova (SN) ranges between that of stripped-envelope core-collapse SNe of intermediate luminosity and that of the luminous GRB-associated SN 2013dx. The observed spectral absorption lines of SN 2019jrj are not as broad as in classical GRB SNe and are instead more similar to those of less-luminous core-collapse SNe. Taking the broad-lined stripped-envelope core-collapse SN 2004aw as an analogue, we tentatively derive the basic physical properties of SN 2019jrj. We discuss the possibility that a fraction of the TeV emission of this source might have had a hadronic origin and estimate the expected high-energy neutrino detection level with IceCube.
Published: 2022

28. The supernova of the MAGIC gamma-ray burst GRB190114C

Author: Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, Valerio, de Ugarte Postigo, A., De Pasquale, M., Filippenko, A., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., Watson, D., Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, Valerio, de Ugarte Postigo, A., De Pasquale, M., Filippenko, A., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., and Watson, D.
Abstract: We observed GRB 190114C (redshift z = 0.4245), the first gamma-ray burst (GRB) ever detected at TeV energies, at optical and near-infrared wavelengths with several ground-based telescopes and the Hubble Space Telescope, with the primary goal of studying its underlying supernova, SN 2019jrj. The monitoring spanned the time interval between 1.3 and 370 days after the burst, in the observer frame. We find that the afterglow emission can be modelled with a forward shock propagating in a uniform medium modified by time-variable extinction along the line of sight. A jet break could be present after 7 rest-frame days, and accordingly the maximum luminosity of the underlying supernova (SN) ranges between that of stripped-envelope core-collapse SNe of intermediate luminosity and that of the luminous GRB-associated SN 2013dx. The observed spectral absorption lines of SN 2019jrj are not as broad as in classical GRB SNe and are instead more similar to those of less-luminous core-collapse SNe. Taking the broad-lined stripped-envelope core-collapse SN 2004aw as an analogue, we tentatively derive the basic physical properties of SN 2019jrj. We discuss the possibility that a fraction of the TeV emission of this source might have had a hadronic origin and estimate the expected high-energy neutrino detection level with IceCube.
Published: 2022

29. The supernova of the MAGIC gamma-ray burst GRB 190114C

Author: Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., DAvanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., DElia, V., De Ugarte Postigo, A., De Pasquale, M., Filippenko, A. V., Fruchter, A. S., Fynbo, J. P.U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Møller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L.C., Stella, L., Tagliaferri, G., Tanvir, N., Watson, D., Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., DAvanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., DElia, V., De Ugarte Postigo, A., De Pasquale, M., Filippenko, A. V., Fruchter, A. S., Fynbo, J. P.U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Møller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L.C., Stella, L., Tagliaferri, G., Tanvir, N., and Watson, D.
Abstract: We observed GRB 190114C (redshift z = 0.4245), the first gamma-ray burst (GRB) ever detected at TeV energies, at optical and near-infrared wavelengths with several ground-based telescopes and the Hubble Space Telescope, with the primary goal of studying its underlying supernova, SN 2019jrj. The monitoring spanned the time interval between 1.3 and 370 days after the burst, in the observer frame. We find that the afterglow emission can be modelled with a forward shock propagating in a uniform medium modified by time-variable extinction along the line of sight. A jet break could be present after 7 rest-frame days, and accordingly the maximum luminosity of the underlying supernova (SN) ranges between that of stripped-envelope core-collapse SNe of intermediate luminosity and that of the luminous GRB-associated SN 2013dx. The observed spectral absorption lines of SN 2019jrj are not as broad as in classical GRB SNe and are instead more similar to those of less-luminous core-collapse SNe. Taking the broad-lined stripped-envelope core-collapse SN 2004aw as an analogue, we tentatively derive the basic physical properties of SN 2019jrj. We discuss the possibility that a fraction of the TeV emission of this source might have had a hadronic origin and estimate the expected high-energy neutrino detection level with IceCube.
Published: 2022

30. The supernova of the MAGIC GRB190114C

Author: Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, V., Postigo, A. de Ugarte, De Pasquale, M., Filippenko, A. V., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., Watson, D., Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, V., Postigo, A. de Ugarte, De Pasquale, M., Filippenko, A. V., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., and Watson, D.
Abstract: We observed GRB190114C (redshift z = 0.4245), the first GRB ever detected at TeV energies, at optical and near-infrared wavelengths with several ground-based telescopes and the Hubble Space Telescope, with the primary goal of studying its underlying supernova, SN2019jrj. The monitoring spanned the time interval between 1.3 and 370 days after the burst, in the observer frame. We find that the afterglow emission can be modelled with a forward shock propagating in a uniform medium modified by time-variable extinction along the line of sight. A jet break could be present after 7 rest-frame days, and accordingly the maximum luminosity of the underlying SN ranges between that of stripped-envelope corecollapse supernovae (SNe) of intermediate luminosity, and that of the luminous GRB-associated SN2013dx. The observed spectral absorption lines of SN2019jrj are not as broad as in classical GRB-SNe, and are rather more similar to those of less-luminous core-collapse SNe. Taking the broad-lined stripped-envelope core-collapse SN2004aw as an analogue, we tentatively derive the basic physical properties of SN2019jrj. We discuss the possibility that a fraction of the TeV emission of this source might have had a hadronic origin and estimate the expected high-energy neutrino detection level with IceCube., Comment: 9 pages, 4 figures, accepted for publication in A&A
Published: 2021
Full Text: View/download PDF

31. INTEGRAL Results on Gamma-Ray Bursts and Polarization of Hard X-ray Sources

Author: Gotz, D, Gouiffes, C., Rodriguez, J., Laurent, P., Jourdain, E., Roques, J. P., Mereghetti, S., Lutovinonv, S., Savchenko, V., Hanlon, L., Martin-Carrillo, A., Moran, P., Gotz, D, Gouiffes, C., Rodriguez, J., Laurent, P., Jourdain, E., Roques, J. P., Mereghetti, S., Lutovinonv, S., Savchenko, V., Hanlon, L., Martin-Carrillo, A., and Moran, P.
Abstract: In this paper we first review the results obtained by the INTEGRAL mission in the domain of Gamma-Ray Bursts (GRBs), thanks to the INTEGRAL Burst Alert System, which is able to deliver near real-time alerts for GRBs detected within the IBIS field of view. More than 120 GRBs have been detected to date and we summarize their properties here. In the second part of this review we focus on the polarimetric results obtained by IBIS and SPI on GRBs and Galactic compact objects., Comment: 24 pages, 8 figures, accepted for publication in New Astronomy Reviews volume "Fifteen-plus years of INTEGRAL Science"
Published: 2021

32. A compact instrument for gamma-ray burst detection on a CubeSat platform I: Design drivers and expected performance

Author: Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Doyle, Maeve, Dunwoody, Rachel, Mangan, Joseph, Thompson, Joseph, Shortt, Brian, Martin-Carrillo, Antonio, Hanlon, Lorraine, Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Doyle, Maeve, Dunwoody, Rachel, Mangan, Joseph, Thompson, Joseph, Shortt, Brian, Martin-Carrillo, Antonio, and Hanlon, Lorraine
Abstract: The Educational Irish Research Satellite 1 (EIRSAT-1) is a 2U CubeSat being developed under ESA's Fly Your Satellite! programme. The project has many aspects, which are primarily educational, but also include space qualification of new detector technologies for gamma-ray astronomy and the detection of gamma-ray bursts (GRBs). The Gamma-ray Module (GMOD), the main mission payload, is a small gamma-ray spectrometer comprising a 25 mm $\times$ 25 mm $\times$ 40 mm cerium bromide scintillator coupled to an array of 16 silicon photomultipliers. The readout is provided by IDE3380 (SIPHRA), a low-power and radiation tolerant readout ASIC. GMOD will detect gamma-rays and measure their energies in a range from tens of keV to a few MeV. Monte Carlo simulations were performed using the Medium Energy Gamma-ray Astronomy Library to evaluate GMOD's capability for the detection of GRBs in low Earth orbit. The simulations used a detailed mass model of the full spacecraft derived from a very high-fidelity 3D CAD model. The sky-average effective area of GMOD on board EIRSAT-1 was found to be 10 cm$^2$ at 120 keV. The instrument is expected to detect between 11 and 14 GRBs, at a significance greater than 10$\sigma$ (and up to 32 at 5$\sigma$), during a nominal one-year mission. The shape of the scintillator in GMOD results in omni-directional sensitivity which allows for a nearly all-sky field of view., Comment: 27 pages, 13 figures. This is an author accepted manuscript of an article published in Experimental Astronomy. The final open-access version is available at: https://doi.org/10.1007/s10686-021-09779-9
Published: 2021
Full Text: View/download PDF

33. Corporación de TIC y recursos educativos digitales en el programa De Ingeniería Civil de la Universidad Católica de Colombia

Author: Cartagena-Linares, Carlos Julio, dir., Martin-Carrillo, Diana Marcela, Cartagena-Linares, Carlos Julio, dir., and Martin-Carrillo, Diana Marcela
Abstract: Analizar la percepción de estudiantes y profesores en cuanto a la incorporación permanente de aplicación de sobre el uso actual de TIC y recursos educativos digitales como herramientas pedagógicas en la Universidad Católica de Colombia en el programa de Ingeniería Civil.
Published: 2021

34. Corporación de TIC y recursos educativos digitales en el programa De Ingeniería Civil de la Universidad Católica de Colombia

Author: Cartagena-Linares, Carlos Julio, dir., Martin-Carrillo, Diana Marcela, Cartagena-Linares, Carlos Julio, dir., and Martin-Carrillo, Diana Marcela
Abstract: Analizar la percepción de estudiantes y profesores en cuanto a la incorporación permanente de aplicación de sobre el uso actual de TIC y recursos educativos digitales como herramientas pedagógicas en la Universidad Católica de Colombia en el programa de Ingeniería Civil.
Published: 2021

35. Corporación de TIC y recursos educativos digitales en el programa De Ingeniería Civil de la Universidad Católica de Colombia

Author: Cartagena-Linares, Carlos Julio, dir., Martin-Carrillo, Diana Marcela, Cartagena-Linares, Carlos Julio, dir., and Martin-Carrillo, Diana Marcela
Abstract: Analizar la percepción de estudiantes y profesores en cuanto a la incorporación permanente de aplicación de sobre el uso actual de TIC y recursos educativos digitales como herramientas pedagógicas en la Universidad Católica de Colombia en el programa de Ingeniería Civil.
Published: 2021

36. Corporación de TIC y recursos educativos digitales en el programa De Ingeniería Civil de la Universidad Católica de Colombia

Author: Cartagena-Linares, Carlos Julio, Martin-Carrillo, Diana Marcela, Cartagena-Linares, Carlos Julio, and Martin-Carrillo, Diana Marcela
Abstract: Analizar la percepción de estudiantes y profesores en cuanto a la incorporación permanente de aplicación de sobre el uso actual de TIC y recursos educativos digitales como herramientas pedagógicas en la Universidad Católica de Colombia en el programa de Ingeniería Civil.
Published: 2021

37. Time domain astronomy with the THESEUS satellite

Author: Mereghetti, S., Balman, S., Caballero-Garcia, M., Del Santo, M., Doroshenko, V., Erkut, M. H., Hanlon, L., Hoeflich, P., Markowitz, A., Osborne, J. P., Pian, E., Rivera Sandoval, L., Webb, N., Amati, L., Ambrosi, E., Beardmore, A. P., Blain, A., Bozzo, E., Burderi, L., Campana, S., Casella, P., D’Aí, A., D’Ammando, F., De Colle, F., Della Valle, M., De Martino, D., Di Salvo, T., Doyle, M., Esposito, P., Frontera, F., Gandhi, P., Ghisellini, G., Gotz, D., Grinberg, V., Guidorzi, C., Hudec, R., Iaria, R., Izzo, L., Jaisawal, G. K., Jonker, P. G., Kong, A. K.H., Krumpe, M., Kumar, P., Manousakis, A., Marino, A., Martin-Carrillo, A., Mignani, R., Miniutti, G., Mundell, C. G., Mukai, K., Nucita, A. A., O’Brien, P. T., Orlandini, M., Orio, M., Palazzi, E., Papitto, A., Pintore, F., Piranomonte, S., Porquet, D., Ricci, C., Riggio, A., Rigoselli, M., Rodriguez, J., Saha, T., Sanna, A., Santangelo, A., Saxton, R., Sidoli, L., Stiele, H., Tagliaferri, G., Tavecchio, F., Tiengo, A., Tsygankov, S., Turriziani, S., Wijnands, R., Zane, S., Zhang, B., Mereghetti, S., Balman, S., Caballero-Garcia, M., Del Santo, M., Doroshenko, V., Erkut, M. H., Hanlon, L., Hoeflich, P., Markowitz, A., Osborne, J. P., Pian, E., Rivera Sandoval, L., Webb, N., Amati, L., Ambrosi, E., Beardmore, A. P., Blain, A., Bozzo, E., Burderi, L., Campana, S., Casella, P., D’Aí, A., D’Ammando, F., De Colle, F., Della Valle, M., De Martino, D., Di Salvo, T., Doyle, M., Esposito, P., Frontera, F., Gandhi, P., Ghisellini, G., Gotz, D., Grinberg, V., Guidorzi, C., Hudec, R., Iaria, R., Izzo, L., Jaisawal, G. K., Jonker, P. G., Kong, A. K.H., Krumpe, M., Kumar, P., Manousakis, A., Marino, A., Martin-Carrillo, A., Mignani, R., Miniutti, G., Mundell, C. G., Mukai, K., Nucita, A. A., O’Brien, P. T., Orlandini, M., Orio, M., Palazzi, E., Papitto, A., Pintore, F., Piranomonte, S., Porquet, D., Ricci, C., Riggio, A., Rigoselli, M., Rodriguez, J., Saha, T., Sanna, A., Santangelo, A., Saxton, R., Sidoli, L., Stiele, H., Tagliaferri, G., Tavecchio, F., Tiengo, A., Tsygankov, S., Turriziani, S., Wijnands, R., Zane, S., and Zhang, B.
Abstract: THESEUS is a medium size space mission of the European Space Agency, currently under evaluation for a possible launch in 2032. Its main objectives are to investigate the early Universe through the observation of gamma-ray bursts and to study the gravitational waves electromagnetic counterparts and neutrino events. On the other hand, its instruments, which include a wide field of view X-ray (0.3-5 keV) telescope based on lobster-eye focussing optics and a gamma-ray spectrometer with imaging capabilities in the 2-150 keV range, are also ideal for carrying out unprecedented studies in time domain astrophysics. In addition, the presence onboard of a 70 cm near infrared telescope will allow simultaneous multiwavelegth studies. Here we present the THESEUS capabilities for studying the time variability of different classes of sources in parallel to, and without affecting, the gamma-ray bursts hunt.
Published: 2021

38. Corporación de TIC y recursos educativos digitales en el programa De Ingeniería Civil de la Universidad Católica de Colombia

Author: Cartagena-Linares, Carlos Julio, Martin-Carrillo, Diana Marcela, Cartagena-Linares, Carlos Julio, and Martin-Carrillo, Diana Marcela
Abstract: Analizar la percepción de estudiantes y profesores en cuanto a la incorporación permanente de aplicación de sobre el uso actual de TIC y recursos educativos digitales como herramientas pedagógicas en la Universidad Católica de Colombia en el programa de Ingeniería Civil.
Published: 2021

39. Corporación de TIC y recursos educativos digitales en el programa De Ingeniería Civil de la Universidad Católica de Colombia

Author: Cartagena-Linares, Carlos Julio, Martin-Carrillo, Diana Marcela, Cartagena-Linares, Carlos Julio, and Martin-Carrillo, Diana Marcela
Abstract: Analizar la percepción de estudiantes y profesores en cuanto a la incorporación permanente de aplicación de sobre el uso actual de TIC y recursos educativos digitales como herramientas pedagógicas en la Universidad Católica de Colombia en el programa de Ingeniería Civil.
Published: 2021

40. Time domain astronomy with the THESEUS satellite

Author: Istituto Nazionale di Astrofisica, Science Foundation Ireland, Agenzia Spaziale Italiana, European Commission, Ministerio de Ciencia e Innovación (España), Mereghetti, S., Balman, S., Caballero-García, María Dolores, Del Santo, M., Doroshenko, V., Erkut, M. H., Hanlon, L., Hoeflich, Peter, Markowitz, A., Osborne, J. P., Pian, E., Rivera Sandoval, L., Webb, N., Amati, L., Ambrosi, E., Beardmore, A. P., Blain, A., Bozz, Enrico, Burderi, L., Campana, S., Casella, P., D'Aí, A., D'Ammando, F., De Colle, F., Della Valle, M., De Martino, D., Di Salvo, T., Doyle, M., Esposito, P., Frontera, F., Gandhi, P., Ghisellini, G., Götz, Diego, Grinberg, Victoria, Guidorzi, C., Hudec, René, Iaria, R., Izzo, L., Jaisawal, G. K., Jonker, P.G., Kong, A. K. H., Krumpe, M., Kumar, P., Manousakis, A., Marino, Alessio, Martin-Carrillo, A., Mignani, R., Miniutti, Giovanni, Mundell, C. G., Mukai, K., Nucita, A. A., O'Brien, P. T., Orlandini, M., Orio, M., Palazzi, E., Papitto, A., Pintore, Fabio, Piranomonte, S., Porquet, D., Ricci, C., Riggio, A., Rigoselli, M., Rodríguez, J., Saha, T., Sanna, Antonio, Santangelo, Andrea, Saxton, R., Sidoli, L., Stiele, H., Tagliaferri, G., Tavecchio, F., Tiengo, A., Tsygankov, S., Turriziani, S., Wijnands, R., Zane, S., Zhang, B., Istituto Nazionale di Astrofisica, Science Foundation Ireland, Agenzia Spaziale Italiana, European Commission, Ministerio de Ciencia e Innovación (España), Mereghetti, S., Balman, S., Caballero-García, María Dolores, Del Santo, M., Doroshenko, V., Erkut, M. H., Hanlon, L., Hoeflich, Peter, Markowitz, A., Osborne, J. P., Pian, E., Rivera Sandoval, L., Webb, N., Amati, L., Ambrosi, E., Beardmore, A. P., Blain, A., Bozz, Enrico, Burderi, L., Campana, S., Casella, P., D'Aí, A., D'Ammando, F., De Colle, F., Della Valle, M., De Martino, D., Di Salvo, T., Doyle, M., Esposito, P., Frontera, F., Gandhi, P., Ghisellini, G., Götz, Diego, Grinberg, Victoria, Guidorzi, C., Hudec, René, Iaria, R., Izzo, L., Jaisawal, G. K., Jonker, P.G., Kong, A. K. H., Krumpe, M., Kumar, P., Manousakis, A., Marino, Alessio, Martin-Carrillo, A., Mignani, R., Miniutti, Giovanni, Mundell, C. G., Mukai, K., Nucita, A. A., O'Brien, P. T., Orlandini, M., Orio, M., Palazzi, E., Papitto, A., Pintore, Fabio, Piranomonte, S., Porquet, D., Ricci, C., Riggio, A., Rigoselli, M., Rodríguez, J., Saha, T., Sanna, Antonio, Santangelo, Andrea, Saxton, R., Sidoli, L., Stiele, H., Tagliaferri, G., Tavecchio, F., Tiengo, A., Tsygankov, S., Turriziani, S., Wijnands, R., Zane, S., and Zhang, B.
Abstract: THESEUS is a medium size space mission of the European Space Agency, currently under evaluation for a possible launch in 2032. Its main objectives are to investigate the early Universe through the observation of gamma-ray bursts and to study the gravitational waves electromagnetic counterparts and neutrino events. On the other hand, its instruments, which include a wide field of view X-ray (0.3-5 keV) telescope based on lobster-eye focussing optics and a gamma-ray spectrometer with imaging capabilities in the 2-150 keV range, are also ideal for carrying out unprecedented studies in time domain astrophysics. In addition, the presence onboard of a 70 cm near infrared telescope will allow simultaneous multiwavelegth studies. Here we present the THESEUS capabilities for studying the time variability of different classes of sources in parallel to, and without affecting, the gamma-ray bursts hunt. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
Published: 2021

41. The supernova of the MAGIC GRB190114C

Author: Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, V., Postigo, A. de Ugarte, De Pasquale, M., Filippenko, A. V., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., Watson, D., Melandri, A., Izzo, L., Pian, E., Malesani, D. B., Della Valle, M., Rossi, A., D'Avanzo, P., Guetta, D., Mazzali, P. A., Benetti, S., Masetti, N., Palazzi, E., Savaglio, S., Amati, L., Antonelli, L. A., Ashall, C., Bernardini, M. G., Campana, S., Carini, R., Covino, S., D'Elia, V., Postigo, A. de Ugarte, De Pasquale, M., Filippenko, A. V., Fruchter, A. S., Fynbo, J. P. U., Giunta, A., Hartmann, D. H., Jakobsson, P., Japelj, J., Jonker, P. G., Kann, D. A., Lamb, G. P., Levan, A. J., Martin-Carrillo, A., Moller, P., Piranomonte, S., Pugliese, G., Salvaterra, R., Schulze, S., Starling, R. L. C., Stella, L., Tagliaferri, G., Tanvir, N., and Watson, D.
Abstract: We observed GRB190114C (redshift z = 0.4245), the first GRB ever detected at TeV energies, at optical and near-infrared wavelengths with several ground-based telescopes and the Hubble Space Telescope, with the primary goal of studying its underlying supernova, SN2019jrj. The monitoring spanned the time interval between 1.3 and 370 days after the burst, in the observer frame. We find that the afterglow emission can be modelled with a forward shock propagating in a uniform medium modified by time-variable extinction along the line of sight. A jet break could be present after 7 rest-frame days, and accordingly the maximum luminosity of the underlying SN ranges between that of stripped-envelope corecollapse supernovae (SNe) of intermediate luminosity, and that of the luminous GRB-associated SN2013dx. The observed spectral absorption lines of SN2019jrj are not as broad as in classical GRB-SNe, and are rather more similar to those of less-luminous core-collapse SNe. Taking the broad-lined stripped-envelope core-collapse SN2004aw as an analogue, we tentatively derive the basic physical properties of SN2019jrj. We discuss the possibility that a fraction of the TeV emission of this source might have had a hadronic origin and estimate the expected high-energy neutrino detection level with IceCube., Comment: 9 pages, 4 figures, accepted for publication in A&A
Published: 2021
Full Text: View/download PDF

42. INTEGRAL Results on Gamma-Ray Bursts and Polarization of Hard X-ray Sources

Author: Gotz, D, Gouiffes, C., Rodriguez, J., Laurent, P., Jourdain, E., Roques, J. P., Mereghetti, S., Lutovinonv, S., Savchenko, V., Hanlon, L., Martin-Carrillo, A., Moran, P., Gotz, D, Gouiffes, C., Rodriguez, J., Laurent, P., Jourdain, E., Roques, J. P., Mereghetti, S., Lutovinonv, S., Savchenko, V., Hanlon, L., Martin-Carrillo, A., and Moran, P.
Abstract: In this paper we first review the results obtained by the INTEGRAL mission in the domain of Gamma-Ray Bursts (GRBs), thanks to the INTEGRAL Burst Alert System, which is able to deliver near real-time alerts for GRBs detected within the IBIS field of view. More than 120 GRBs have been detected to date and we summarize their properties here. In the second part of this review we focus on the polarimetric results obtained by IBIS and SPI on GRBs and Galactic compact objects., Comment: 24 pages, 8 figures, accepted for publication in New Astronomy Reviews volume "Fifteen-plus years of INTEGRAL Science"
Published: 2021

43. A compact instrument for gamma-ray burst detection on a CubeSat platform I: Design drivers and expected performance

Author: Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Doyle, Maeve, Dunwoody, Rachel, Mangan, Joseph, Thompson, Joseph, Shortt, Brian, Martin-Carrillo, Antonio, Hanlon, Lorraine, Murphy, David, Ulyanov, Alexey, McBreen, Sheila, Doyle, Maeve, Dunwoody, Rachel, Mangan, Joseph, Thompson, Joseph, Shortt, Brian, Martin-Carrillo, Antonio, and Hanlon, Lorraine
Abstract: The Educational Irish Research Satellite 1 (EIRSAT-1) is a 2U CubeSat being developed under ESA's Fly Your Satellite! programme. The project has many aspects, which are primarily educational, but also include space qualification of new detector technologies for gamma-ray astronomy and the detection of gamma-ray bursts (GRBs). The Gamma-ray Module (GMOD), the main mission payload, is a small gamma-ray spectrometer comprising a 25 mm $\times$ 25 mm $\times$ 40 mm cerium bromide scintillator coupled to an array of 16 silicon photomultipliers. The readout is provided by IDE3380 (SIPHRA), a low-power and radiation tolerant readout ASIC. GMOD will detect gamma-rays and measure their energies in a range from tens of keV to a few MeV. Monte Carlo simulations were performed using the Medium Energy Gamma-ray Astronomy Library to evaluate GMOD's capability for the detection of GRBs in low Earth orbit. The simulations used a detailed mass model of the full spacecraft derived from a very high-fidelity 3D CAD model. The sky-average effective area of GMOD on board EIRSAT-1 was found to be 10 cm$^2$ at 120 keV. The instrument is expected to detect between 11 and 14 GRBs, at a significance greater than 10$\sigma$ (and up to 32 at 5$\sigma$), during a nominal one-year mission. The shape of the scintillator in GMOD results in omni-directional sensitivity which allows for a nearly all-sky field of view., Comment: 27 pages, 13 figures. This is an author accepted manuscript of an article published in Experimental Astronomy. The final open-access version is available at: https://doi.org/10.1007/s10686-021-09779-9
Published: 2021
Full Text: View/download PDF

44. Multi-Messenger Astrophysics with THESEUS in the 2030s

Author: Ciolfi, Riccardo, Stratta, Giulia, Branchesi, Marica, Gendre, Bruce, Grimm, Stefan, Harms, Jan, Lamb, Gavin Paul, Martin-Carrillo, Antonio, McCann, Ayden, Oganesyan, Gor, Palazzi, Eliana, Ronchini, Samuele, Rossi, Andrea, Salafia, Om Sharan, Salmon, Lana, Ascenzi, Stefano, Capone, Antonio, Celli, Silvia, Dall'Osso, Simone, Di Palma, Irene, Fasano, Michela, Fermani, Paolo, Guetta, Dafne, Hanlon, Lorraine, Howell, Eric, Paltani, Stephane, Rezzolla, Luciano, Vinciguerra, Serena, Zegarelli, Angela, Amati, Lorenzo, Blain, Andrew, Bozzo, Enrico, Chaty, Sylvain, D'Avanzo, Paolo, De Pasquale, Massimiliano, Dereli-Bégué, Hüsne, Ghirlanda, Giancarlo, Gomboc, Andreja, Götz, Diego, Horvath, Istvan, Hudec, Rene, Izzo, Luca, Floch, Emeric Le, Li, Liang, Longo, Francesco, Komossa, S., Kong, Albert K. H., Mereghetti, Sandro, Mignani, Roberto, Nathanail, Antonios, O'Brien, Paul T., Osborne, Julian P., Pe'er, Asaf, Piranomonte, Silvia, Rosati, Piero, Savaglio, Sandra, Schüssler, Fabian, Sergijenko, Olga, Shao, Lijing, Tanvir, Nial, Turriziani, Sara, Urata, Yuji, van Putten, Maurice, Vergani, Susanna, Zane, Silvia, Zhang, Bing, Ciolfi, Riccardo, Stratta, Giulia, Branchesi, Marica, Gendre, Bruce, Grimm, Stefan, Harms, Jan, Lamb, Gavin Paul, Martin-Carrillo, Antonio, McCann, Ayden, Oganesyan, Gor, Palazzi, Eliana, Ronchini, Samuele, Rossi, Andrea, Salafia, Om Sharan, Salmon, Lana, Ascenzi, Stefano, Capone, Antonio, Celli, Silvia, Dall'Osso, Simone, Di Palma, Irene, Fasano, Michela, Fermani, Paolo, Guetta, Dafne, Hanlon, Lorraine, Howell, Eric, Paltani, Stephane, Rezzolla, Luciano, Vinciguerra, Serena, Zegarelli, Angela, Amati, Lorenzo, Blain, Andrew, Bozzo, Enrico, Chaty, Sylvain, D'Avanzo, Paolo, De Pasquale, Massimiliano, Dereli-Bégué, Hüsne, Ghirlanda, Giancarlo, Gomboc, Andreja, Götz, Diego, Horvath, Istvan, Hudec, Rene, Izzo, Luca, Floch, Emeric Le, Li, Liang, Longo, Francesco, Komossa, S., Kong, Albert K. H., Mereghetti, Sandro, Mignani, Roberto, Nathanail, Antonios, O'Brien, Paul T., Osborne, Julian P., Pe'er, Asaf, Piranomonte, Silvia, Rosati, Piero, Savaglio, Sandra, Schüssler, Fabian, Sergijenko, Olga, Shao, Lijing, Tanvir, Nial, Turriziani, Sara, Urata, Yuji, van Putten, Maurice, Vergani, Susanna, Zane, Silvia, and Zhang, Bing
Abstract: Multi-messenger astrophysics is becoming a major avenue to explore the Universe, with the potential to span a vast range of redshifts. The growing synergies between different probes is opening new frontiers, which promise profound insights into several aspects of fundamental physics and cosmology. In this context, THESEUS will play a central role during the 2030s in detecting and localizing the electromagnetic counterparts of gravitational wave and neutrino sources that the unprecedented sensitivity of next generation detectors will discover at much higher rates than the present. Here, we review the most important target signals from multi-messenger sources that THESEUS will be able to detect and characterize, discussing detection rate expectations and scientific impact., Comment: Submitted to Experimental Astronomy
Published: 2021
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45. Synergies of THESEUS with the large facilities of the 2030s and guest observer opportunities

Author: Rosati, P., Basa, S., Blain, A. W., Bozzo, E., Branchesi, M., Christensen, L., Ferrara, A., Gomboc, A., O'Brien, P. T., Osborne, J. P., Rossi, A., Schüssler, F., Spurio, M., Stergioulas, N., Stratta, G., Amati, L., Casewell, S., Ciolfi, R., Ghirlanda, G., Grimm, S., Guetta, D., Harms, J., Floc'h, E. Le, Longo, F., Maggiore, M., Mereghetti, S., Oganesyan, G., Salvaterra, R., Tanvir, N. R., Turriziani, S., Vergani, S. D., Balman, S., Caruana, J., Erkut, M. H., Guidorzi, G., Frontera, F., Martin-Carrillo, A., Paltani, S., Porquet, D., Sergijenko, O., Rosati, P., Basa, S., Blain, A. W., Bozzo, E., Branchesi, M., Christensen, L., Ferrara, A., Gomboc, A., O'Brien, P. T., Osborne, J. P., Rossi, A., Schüssler, F., Spurio, M., Stergioulas, N., Stratta, G., Amati, L., Casewell, S., Ciolfi, R., Ghirlanda, G., Grimm, S., Guetta, D., Harms, J., Floc'h, E. Le, Longo, F., Maggiore, M., Mereghetti, S., Oganesyan, G., Salvaterra, R., Tanvir, N. R., Turriziani, S., Vergani, S. D., Balman, S., Caruana, J., Erkut, M. H., Guidorzi, G., Frontera, F., Martin-Carrillo, A., Paltani, S., Porquet, D., and Sergijenko, O.
Abstract: The proposed THESEUS mission will vastly expand the capabilities to monitor the high-energy sky, and will exploit large samples of gamma-ray bursts to probe the early Universe back to the first generation of stars, and to advance multi-messenger astrophysics by detecting and localizing the counterparts of gravitational waves and cosmic neutrino sources. The combination and coordination of these activities with multi-wavelength, multi-messenger facilities expected to be operating in the thirties will open new avenues of exploration in many areas of astrophysics, cosmology and fundamental physics, thus adding considerable strength to the overall scientific impact of THESEUS and these facilities. We discuss here a number of these powerful synergies., Comment: Revised version after submission to Experimental Astronomy
Published: 2021
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46. Time Domain Astronomy with the THESEUS Satellite

Author: Mereghetti, S., Balman, S., Caballero-Garcia, M., Del Santo, M., Doroshenko, V., Erkut, M. H., Hanlon, L., Hoeflich, P., Markowitz, A., Osborne, J. P., Pian, E., Sandoval, L. Rivera, Webb, N., Amati, L., Ambrosi, E., Beardmore, A. P., Blain, A., Bozzo, E., Burderi, L., Campana, S., Casella, P., D'Aì, A., D'Ammando, F., De Colle, F., Della Valle, M., De Martino, D., Di Salvo, T., Doyle, M., Esposito, P., Frontera, F., Gandhi, P., Ghisellini, G., Gotz, D., Grinberg, V., Guidorzi, C., Hudec, R., Iaria, R., Izzo, L., Jaisawal, G. K., Jonker, P., Kong, A. K. H., Krumpe, M., Kumar, P., Manousakis, A., Marino, A., Martin-Carrillo, A., Mignani, R., Miniutti, G., Mundell, C. G., Mukai, K., Nucita, A. A., O'Brien, P. T., Orlandini, M., Orio, M., Palazzi, E., Papitto, A., Pintore, F., Piranomonte, S., Porquet, D., Ricci, C., Riggio, A., Rigoselli, M., Rodriguez, J., Saha, T., Sanna, A., Santangelo, A., Saxton, R., Sidoli, L., Stiele, H., Tagliaferri, G., Tavecchio, F., Tiengo, A., Tsygankov, S., Turriziani, S., Wijnands, R., Zane, S., Zhang, B., Mereghetti, S., Balman, S., Caballero-Garcia, M., Del Santo, M., Doroshenko, V., Erkut, M. H., Hanlon, L., Hoeflich, P., Markowitz, A., Osborne, J. P., Pian, E., Sandoval, L. Rivera, Webb, N., Amati, L., Ambrosi, E., Beardmore, A. P., Blain, A., Bozzo, E., Burderi, L., Campana, S., Casella, P., D'Aì, A., D'Ammando, F., De Colle, F., Della Valle, M., De Martino, D., Di Salvo, T., Doyle, M., Esposito, P., Frontera, F., Gandhi, P., Ghisellini, G., Gotz, D., Grinberg, V., Guidorzi, C., Hudec, R., Iaria, R., Izzo, L., Jaisawal, G. K., Jonker, P., Kong, A. K. H., Krumpe, M., Kumar, P., Manousakis, A., Marino, A., Martin-Carrillo, A., Mignani, R., Miniutti, G., Mundell, C. G., Mukai, K., Nucita, A. A., O'Brien, P. T., Orlandini, M., Orio, M., Palazzi, E., Papitto, A., Pintore, F., Piranomonte, S., Porquet, D., Ricci, C., Riggio, A., Rigoselli, M., Rodriguez, J., Saha, T., Sanna, A., Santangelo, A., Saxton, R., Sidoli, L., Stiele, H., Tagliaferri, G., Tavecchio, F., Tiengo, A., Tsygankov, S., Turriziani, S., Wijnands, R., Zane, S., and Zhang, B.
Abstract: THESEUS is a medium size space mission of the European Space Agency, currently under evaluation for a possible launch in 2032. Its main objectives are to investigate the early Universe through the observation of gamma-ray bursts and to study the gravitational waves electromagnetic counterparts and neutrino events. On the other hand, its instruments, which include a wide field of view X-ray (0.3-5 keV) telescope based on lobster-eye focusing optics and a gamma-ray spectrometer with imaging capabilities in the 2-150 keV range, are also ideal for carrying out unprecedented studies in time domain astrophysics. In addition, the presence onboard of a 70 cm near infrared telescope will allow simultaneous multi-wavelegth studies. Here we present the THESEUS capabilities for studying the time variability of different classes of sources in parallel to, and without affecting, the gamma-ray bursts hunt., Comment: Submitted to Experimental Astronomy
Published: 2021
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47. Photometric and spectroscopic evolution of the interacting transient AT 2016jbu (Gaia16cfr)

Author: Brennan, S. J., Fraser, M., Johansson, J., Pastorello, A., Kotak, R., Stevance, H. F., Chen, T. -W., Eldridge, J. J., Bose, S., Brown, P. J., Callis, E., Cartier, R., Dennefeld, M., Dong, Subo, Duffy, P., Elias-Rosa, N., Hosseinzadeh, G., Hsiao, E., Kuncarayakti, H., Martin-Carrillo, A., Monard, B., Nyholm, A., Pignata, G., Sand, D., Shappee, B. J., Smartt, S. J., Tucker, B. E., Wyrzykowski, L., Abbot, H., Benetti, S., Blondin, S., Chen, Ping, Bento, J., Delgado, A., Galbany, L., Gromadzki, M., Gutiérrez, C. P., Hanlon, L., Harrison, D. L., Hiramatsu, D., Hodgkin, S. T., Holoien, T. W. -S., Howell, D. A., Inserra, C., Kankare, E., Kozlowski, S., Maguire, K., Müller-Bravo, T. E., McCully, C., Meintjes, P., Morrell, N., Nicholl, M., O'Neill, D., Pietrukowicz, P., Poleski, R., Prieto, J. L., Rau, A., Reichart, D. E., Schweyer, T., Shahbandeh, M., Skowron, J., Sollerman, J., Soszńyski, I., Stritzinger, M. D., Szymański, M., Tartaglia, L., Udalski, A., Ulaczyk, K., Young, D. R., van Leeuwen, M., van Soelen, B., Brennan, S. J., Fraser, M., Johansson, J., Pastorello, A., Kotak, R., Stevance, H. F., Chen, T. -W., Eldridge, J. J., Bose, S., Brown, P. J., Callis, E., Cartier, R., Dennefeld, M., Dong, Subo, Duffy, P., Elias-Rosa, N., Hosseinzadeh, G., Hsiao, E., Kuncarayakti, H., Martin-Carrillo, A., Monard, B., Nyholm, A., Pignata, G., Sand, D., Shappee, B. J., Smartt, S. J., Tucker, B. E., Wyrzykowski, L., Abbot, H., Benetti, S., Blondin, S., Chen, Ping, Bento, J., Delgado, A., Galbany, L., Gromadzki, M., Gutiérrez, C. P., Hanlon, L., Harrison, D. L., Hiramatsu, D., Hodgkin, S. T., Holoien, T. W. -S., Howell, D. A., Inserra, C., Kankare, E., Kozlowski, S., Maguire, K., Müller-Bravo, T. E., McCully, C., Meintjes, P., Morrell, N., Nicholl, M., O'Neill, D., Pietrukowicz, P., Poleski, R., Prieto, J. L., Rau, A., Reichart, D. E., Schweyer, T., Shahbandeh, M., Skowron, J., Sollerman, J., Soszńyski, I., Stritzinger, M. D., Szymański, M., Tartaglia, L., Udalski, A., Ulaczyk, K., Young, D. R., van Leeuwen, M., and van Soelen, B.
Abstract: We present the results from a high cadence, multi-wavelength observation campaign of AT 2016jbu (aka Gaia16cfr), an interacting transient. This dataset complements the current literature by adding higher cadence as well as extended coverage of the lightcurve evolution and late-time spectroscopic evolution. Photometric coverage reveals that AT 2016jbu underwent significant photometric variability followed by two luminous events, the latter of which reached an absolute magnitude of M$_V\sim$-18.5 mag. This is similar to the transient SN 2009ip whose nature is still debated. Spectra are dominated by narrow emission lines and show a blue continuum during the peak of the second event. AT 2016jbu shows signatures of a complex, non-homogeneous circumstellar material (CSM). We see slowly evolving asymmetric hydrogen line profiles, with velocities of 500km$s^{-1}$ seen in narrow emission features from a slow moving CSM, and up to 10,000km$s^{-1}$ seen in broad absorption from some high velocity material. Late-time spectra ($\sim$+1 year) show a lack of forbidden emission lines expected from a core-collapse supernova and are dominated by strong emission from H, He i and Ca ii. Strong asymmetric emission features, a bumpy lightcurve, and continually evolving spectra suggest an inhibit nebular phase. We compare the evolution of H$\alpha$ among SN 2009ip-like transients and find possible evidence for orientation angle effects. The light-curve evolution of AT 2016jbu suggests similar, but not identical, circumstellar environments to other SN 2009ip-like transients., Comment: 27 pages, 21 figures, accepted for publication in MNRAS
Published: 2021
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48. Progenitor, environment, and modelling of the interacting transient, AT 2016jbu (Gaia16cfr)

Author: Brennan, S. J., Fraser, M., Johansson, J., Pastorello, A., Kotak, R., Stevance, H. F., Chen, T. -W., Eldridge, J. J., Bose, S., Brown, P. J., Callis, E., Cartier, R., Dennefeld, M., Dong, Subo, Duffy, P., Elias-Rosa, N., Hosseinzadeh, G., Hsiao, E., Kuncarayakti, H., Martin-Carrillo, A., Monard, B., Pignata, G., Sand, D., Shappee, B. J., Smartt, S. J., Tucker, B. E., Wyrzykowski, L., Abbot, H., Benetti, S., Blondin, S., Chen, Ping, Bento, J., Delgado, A., Galbany, L., Gromadzki, M., Gutiérrez, C. P., Hanlon, L., Harrison, D. L., Hiramatsu, D., Hodgkin, S. T., Holoien, T. W. -S., Howell, D. A., Inserra, C., Kankare, E., Kozlowski, S., Maguire, K., Müller-Bravo, T. E., McCully, C., Meintjes, P., Morrell, N., Nicholl, M., O'Neill, D., Pietrukowicz, P., Poleski, R., Prieto, J. L., Rau, A., Reichart, D. E., Schweyer, T., Shahbandeh, M., Skowron, J., Sollerman, J., Soszńyski, I., Stritzinger, M. D., Szymański, M., Tartaglia, L., Udalski, A., Ulaczyk, K., Young, D. R., van Leeuwen, M., van Soelen, B., Brennan, S. J., Fraser, M., Johansson, J., Pastorello, A., Kotak, R., Stevance, H. F., Chen, T. -W., Eldridge, J. J., Bose, S., Brown, P. J., Callis, E., Cartier, R., Dennefeld, M., Dong, Subo, Duffy, P., Elias-Rosa, N., Hosseinzadeh, G., Hsiao, E., Kuncarayakti, H., Martin-Carrillo, A., Monard, B., Pignata, G., Sand, D., Shappee, B. J., Smartt, S. J., Tucker, B. E., Wyrzykowski, L., Abbot, H., Benetti, S., Blondin, S., Chen, Ping, Bento, J., Delgado, A., Galbany, L., Gromadzki, M., Gutiérrez, C. P., Hanlon, L., Harrison, D. L., Hiramatsu, D., Hodgkin, S. T., Holoien, T. W. -S., Howell, D. A., Inserra, C., Kankare, E., Kozlowski, S., Maguire, K., Müller-Bravo, T. E., McCully, C., Meintjes, P., Morrell, N., Nicholl, M., O'Neill, D., Pietrukowicz, P., Poleski, R., Prieto, J. L., Rau, A., Reichart, D. E., Schweyer, T., Shahbandeh, M., Skowron, J., Sollerman, J., Soszńyski, I., Stritzinger, M. D., Szymański, M., Tartaglia, L., Udalski, A., Ulaczyk, K., Young, D. R., van Leeuwen, M., and van Soelen, B.
Abstract: We present the bolometric lightcurve, identification and analysis of the progenitor candidate, and preliminary modelling of AT2016jbu (Gaia16cfr). We find a progenitor consistent with a $\sim$22--25~$M_{\odot}$ yellow hypergiant surrounded by a dusty circumstellar shell, in agreement with what has been previously reported. We see evidence for significant photometric variability in the progenitor, as well as strong H$\alpha$ emission consistent with pre-existing circumstellar material. The age of the environment as well as the resolved stellar population surrounding AT2016jbu, support a progenitor age of $>$10 Myr, consistent with a progenitor mass of $\sim$22~$M_{\odot}$. A joint analysis of the velocity evolution of AT2016jbu, and the photospheric radius inferred from the bolometric lightcurve shows the transient is consistent with two successive outbursts/explosions. The first outburst ejected material with velocity $\sim$650$kms^{-1}$, while the second, more energetic event, ejected material at $\sim$4500$kms^{-1}$. Whether the latter is the core-collapse of the progenitor remains uncertain. We place a limit on the ejected $^{56}$Ni mass of $<$0.016$M_{\odot}$. Using the BPASS code, we explore a wide range of possible progenitor systems, and find that the majority of these are in binaries, some of which are undergoing mass transfer or common envelope evolution immediately prior to explosion. Finally, we use the SNEC code to demonstrate that the low-energy explosion within some of these binary systems, together with sufficient CSM, can reproduce the overall morphology of the lightcurve of AT2016jbu., Comment: 23 pages, 15 figures, accepted for publication in MNRAS
Published: 2021
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49. Multi-messenger astronomy with INTEGRAL

Author: Ferrigno, Carlo, Savchenko, Volodymyr, Coleiro, Alexis, Panessa, Francesca, Bazzano, Angela, Bozzo, Enrico, Chenevez, Jérôme, Domingo, Albert, Doyle, Maeve, Goldwurm, Andrea, Götz, Diego, Jourdain, Elisabeth, von Kienlin, Andreas, Kuulkers, Erik, Mereghetti, Sandro, Martin-Carrillo, Antonio, Natalucci, Lorenzo, Onori, Francesca, Rodi, James, Roques, Jean Pierre, Sánchez-Fernández, Celia, Ubertini, Pietro, Ferrigno, Carlo, Savchenko, Volodymyr, Coleiro, Alexis, Panessa, Francesca, Bazzano, Angela, Bozzo, Enrico, Chenevez, Jérôme, Domingo, Albert, Doyle, Maeve, Goldwurm, Andrea, Götz, Diego, Jourdain, Elisabeth, von Kienlin, Andreas, Kuulkers, Erik, Mereghetti, Sandro, Martin-Carrillo, Antonio, Natalucci, Lorenzo, Onori, Francesca, Rodi, James, Roques, Jean Pierre, Sánchez-Fernández, Celia, and Ubertini, Pietro
Abstract: At the time of defining the science objectives of the INTernational Gamma-Ray Astrophysics Laboratory (INTEGRAL), such a rapid and spectacular development of multi-messenger astronomy could not have been predicted, with new impulsive phenomena becoming accessible through different channels. Neutrino telescopes have routinely detected energetic neutrino events coming from unknown cosmic sources since 2013. Gravitational wave detectors opened a novel window on the sky in 2015 with the detection of the merging of two black holes and in 2017 with the merging of two neutron stars, followed by signals in the full electromagnetic range. Finally, since 2007, radio telescopes detected extremely intense and short burst of radio waves, known as Fast Radio Bursts (FRBs) whose origin is for most cases extragalactic, but enigmatic. The exceptionally robust and versatile design of the INTEGRAL mission has allowed researchers to exploit data collected not only with the pointed instruments, but also with the active cosmic-ray shields of the main instruments to detect impulses of gamma-rays in coincidence with unpredictable phenomena. The full-sky coverage, mostly unocculted by the Earth, the large effective area, the stable background, and the high duty cycle (85%) put INTEGRAL in a privileged position to give a major contribution to multi-messenger astronomy. In this review, we describe how INTEGRAL has provided upper limits on the gamma-ray emission from black-hole binary mergers, detected a short gamma-ray burst in coincidence with a binary neutron star merger, contributed to define the spectral energy distribution of a blazar associated with a neutrino event, set upper limits on impulsive and steady gamma-ray emission from cosmological FRBs, and detected a magnetar flare associated with fast radio bursting emission.
Published: 2021

50. Multi-messenger astrophysics with THESEUS in the 2030s

Author: Ciolfi, Riccardo, Stratta, Giulia, Branchesi, Marica, Gendre, Bruce, Grimm, Stefan, Harms, Jan, Lamb, Gavin Paul, Martin-Carrillo, Antonio, McCann, Ayden, Oganesyan, Gor, Palazzi, Eliana, Ronchini, Samuele, Rossi, Andrea, Salafia, Om Sharan, Salmon, Lana, Ascenzi, Stefano, Capone, Antonio, Celli, Silvia, Dall'Osso, Simone, Di Palma, Irene, Fasano, Michela, Fermani, Paolo, Guetta, Dafne, Hanlon, Lorraine, Howell, Eric, Paltani, Stephane, Rezzolla, Luciano, Vinciguerra, Serena, Zegarelli, Angela, Amati, Lorenzo, Blain, Andrew, Bozzo, Enrico, Chaty, Sylvain, D'Avanzo, Paolo, De Pasquale, FnmMassimiliano, Dereli-Begue, Husne, Ghirlanda, Giancarlo, Gomboc, Andreja, Gotz, Diego, Horvath, Istvan, Hudec, Rene, Izzo, Luca, Le Floch, Emeric, Li, Liang, Longo, Francesco, Komossa, S., Kong, Albert K. H., Mereghetti, Sandro, Mignani, Roberto, Nathanail, Antonios, O'Brien, Paul T., Osborne, Julian P., Pe'er, Asaf, Piranomonte, Silvia, Rosati, Piero, Savaglio, Sandra, Schussler, Fabian, Sergijenko, Olga, Shao, Lijing, Tanvir, Nial, Turriziani, Sara, Urata, Yuji, van Putten, Maurice, Vergani, Susanna, Zane, Silvia, Zhang, Bing, Ciolfi, Riccardo, Stratta, Giulia, Branchesi, Marica, Gendre, Bruce, Grimm, Stefan, Harms, Jan, Lamb, Gavin Paul, Martin-Carrillo, Antonio, McCann, Ayden, Oganesyan, Gor, Palazzi, Eliana, Ronchini, Samuele, Rossi, Andrea, Salafia, Om Sharan, Salmon, Lana, Ascenzi, Stefano, Capone, Antonio, Celli, Silvia, Dall'Osso, Simone, Di Palma, Irene, Fasano, Michela, Fermani, Paolo, Guetta, Dafne, Hanlon, Lorraine, Howell, Eric, Paltani, Stephane, Rezzolla, Luciano, Vinciguerra, Serena, Zegarelli, Angela, Amati, Lorenzo, Blain, Andrew, Bozzo, Enrico, Chaty, Sylvain, D'Avanzo, Paolo, De Pasquale, FnmMassimiliano, Dereli-Begue, Husne, Ghirlanda, Giancarlo, Gomboc, Andreja, Gotz, Diego, Horvath, Istvan, Hudec, Rene, Izzo, Luca, Le Floch, Emeric, Li, Liang, Longo, Francesco, Komossa, S., Kong, Albert K. H., Mereghetti, Sandro, Mignani, Roberto, Nathanail, Antonios, O'Brien, Paul T., Osborne, Julian P., Pe'er, Asaf, Piranomonte, Silvia, Rosati, Piero, Savaglio, Sandra, Schussler, Fabian, Sergijenko, Olga, Shao, Lijing, Tanvir, Nial, Turriziani, Sara, Urata, Yuji, van Putten, Maurice, Vergani, Susanna, Zane, Silvia, and Zhang, Bing
Abstract: Multi-messenger astrophysics is becoming a major avenue to explore the Universe, with the potential to span a vast range of redshifts. The growing synergies between different probes is opening new frontiers, which promise profound insights into several aspects of fundamental physics and cosmology. In this context, THESEUS will play a central role during the 2030s in detecting and localizing the electromagnetic counterparts of gravitational wave and neutrino sources that the unprecedented sensitivity of next generation detectors will discover at much higher rates than the present. Here, we review the most important target signals from multi-messenger sources that THESEUS will be able to detect and characterize, discussing detection rate expectations and scientific impact.
Published: 2021

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