MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*

Acciari, V. A.; Ansoldi, S.; Antonelli, L. A.; Engels, A. Arbet; Asano, K.; Baack, D.; Babic, A.; Baquero, A.; de Almeida, U. Barres; Barrio, J. A.; Becerra Gonzalez, J.; Bednarek, W.; Bellizzi, L.; Bernardini, E.; Bernardos, M.; Berti, A.; Besenrieder, J.; Bhattacharyya, W.; Bigongiari, C.; Biland, A.; Blanch, O.; Bonnoli, G.; Bosnjak, Z.; Busetto, G.; Carosi, R.; Ceribella, G.; Cerruti, M.; Chai, Y.; Chilingarian, A.; Cikota, S.; Colak, S. M.; Colombo, Elisabetta; Contreras, J. L.; Cortina, J.; Covino, S.; D'Amico, G.; D'Elia, V.; Da Vela, P.; Dazzi, F.; De Angelis, A.; De Lotto, B.; Delfino, M.; Delgado, J.; Delgado Mendez, C.; Depaoli, D.; Di Pierro, F.; Di Venere, L.; Do Souto Espineira, E.; Prester, D. Dominis; Donini, A.; Dorner, D.; Doro, M.; Elsaesser, D.; Ramazani, V. Fallah; Fattorini, A.; Ferrara, G.; Foffano, L.; Fonseca, M. V; Font, L.; Fruck, C.; Fukami, S.; Garcia Lopez, R. J.; Garczarczyk, M.; Gasparyan, S.; Gaug, M.; Giglietto, N.; Giordano, F.; Gliwny, P.; Godinovic, N.; Green, J. G.; Green, D.; Hadasch, D.; Hahn, A.; Heckmann, L.; Herrera, J.; Hoang, J.; Hrupec, D.; Huetten, M.; Inada, T.; Inoue, S.; Ishio, K.; Iwamura, Y.; Jormanainen, J.; Jouvin, L.; Kajiwara, Y.; Karjalainen, M.; Kerszberg, D.; Kobayashi, Y.; Kubo, H.; Kushida, J.; Lamastra, A.; Lelas, D.; Leone, F.; Lindfors, E.; Lombardi, S.; Longo, F.; Lopez-Coto, R.; Lopez-Moya, M.; Lopez-Oramas, A.; Loporchio, S.; Fraga, B. Machado de Oliveira; Maggio, C.; Majumdar, P.; Makariev, M.; Mallamaci, M.; Maneva, G.; Manganaro, M.; Mannheim, K.; Maraschi, L.; Mariotti, M.; Martinez, M.; Mazin, D.; Mender, S.; Miceli, D.; Miener, T.; Micanovic, S.; Minev, M.; Miranda, J. M.; Mirzoyan, R.; Molina, Edgar; Moralejo, A.; Morcuende, D.; Moreno Baltà, Victorià; Moretti, E.; Neustroev, V; Nigro, C.; Nilsson, K.; Ninci, D.; Nishijima, K.; Noda, K.; Nozaki, S.; Ohtani, Y.; Oka, T.; Otero-Santos, J.; Paiano, S.; Palatiello, M.; Paneque, D.; Paoletti, R.; Paredes i Poy, Josep Maria; Pavletic, L.; Penil, P.; Perennes, C.; Persic, M.; Moroni, P. G. Prada; Prandini, E.; Priyadarshi, C.; Puljak, I; Rhode, W.; Ribó Gomis, Marc; Rico, J.; Righi, C.; Rugliancich, A.; Saha, L.; Sahakyan, N.; Saito, T.; Sakurai, S.; Satalecka, K.; Saturni, F. G.; Schleicher, B.; Schmidt, K.; Schweizer, T.; Sitarek, J.; Snidaric, I; Sobczynska, D.; Spolon, A.; Stamerra, A.; Strom, D.; Strzys, M.; Suda, Y.; Suric, T.; Takahashi, M.; Tavecchio, F.; Temnikov, P.; Terzic, T.; Teshima, M.; Torres-Alba, N.; Tosti, L.; Truzzi, S.; Tutone, A.; van Scherpenberg, J.; Vanzo, G.; Vazquez Acosta, M.; Ventura, Salvador; Verguilov, V.; Vigorito, C. F.; Vitale, V.; Vovk, I; Will, M.; Zaric, D.; Nava, L.

MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*

The coincident detection of GW170817 in gravitational waves and electromagnetic radiation spanning the radio to MeV gamma-ray bands provided the rst direct evidence that short gamma-ray bursts (GRBs) can originate from binary neutron star (BNS) mergers. On the other hand, the properties of short GRB...

Descripción completa

Detalles Bibliográficos
Autores:	Acciari, V. A., Ansoldi, S., Antonelli, L. A., Engels, A. Arbet, Asano, K., Baack, D., Babic, A., Baquero, A., de Almeida, U. Barres, Barrio, J. A., Becerra Gonzalez, J., Bednarek, W., Bellizzi, L., Bernardini, E., Bernardos, M., Berti, A., Besenrieder, J., Bhattacharyya, W., Bigongiari, C., Biland, A., Blanch, O., Bonnoli, G., Bosnjak, Z., Busetto, G., Carosi, R., Ceribella, G., Cerruti, M., Chai, Y., Chilingarian, A., Cikota, S., Colak, S. M., Colombo, Elisabetta, Contreras, J. L., Cortina, J., Covino, S., D'Amico, G., D'Elia, V., Da Vela, P., Dazzi, F., De Angelis, A., De Lotto, B., Delfino, M., Delgado, J., Delgado Mendez, C., Depaoli, D., Di Pierro, F., Di Venere, L., Do Souto Espineira, E., Prester, D. Dominis, Donini, A., Dorner, D., Doro, M., Elsaesser, D., Ramazani, V. Fallah, Fattorini, A., Ferrara, G., Foffano, L., Fonseca, M. V, Font, L., Fruck, C., Fukami, S., Garcia Lopez, R. J., Garczarczyk, M., Gasparyan, S., Gaug, M., Giglietto, N., Giordano, F., Gliwny, P., Godinovic, N., Green, J. G., Green, D., Hadasch, D., Hahn, A., Heckmann, L., Herrera, J., Hoang, J., Hrupec, D., Huetten, M., Inada, T., Inoue, S., Ishio, K., Iwamura, Y., Jormanainen, J., Jouvin, L., Kajiwara, Y., Karjalainen, M., Kerszberg, D., Kobayashi, Y., Kubo, H., Kushida, J., Lamastra, A., Lelas, D., Leone, F., Lindfors, E., Lombardi, S., Longo, F., Lopez-Coto, R., Lopez-Moya, M., Lopez-Oramas, A., Loporchio, S., Fraga, B. Machado de Oliveira, Maggio, C., Majumdar, P., Makariev, M., Mallamaci, M., Maneva, G., Manganaro, M., Mannheim, K., Maraschi, L., Mariotti, M., Martinez, M., Mazin, D., Mender, S., Miceli, D., Miener, T., Micanovic, S., Minev, M., Miranda, J. M., Mirzoyan, R., Molina, Edgar, Moralejo, A., Morcuende, D., Moreno Baltà, Victorià, Moretti, E., Neustroev, V, Nigro, C., Nilsson, K., Ninci, D., Nishijima, K., Noda, K., Nozaki, S., Ohtani, Y., Oka, T., Otero-Santos, J., Paiano, S., Palatiello, M., Paneque, D., Paoletti, R., Paredes i Poy, Josep Maria, Pavletic, L., Penil, P., Perennes, C., Persic, M., Moroni, P. G. Prada, Prandini, E., Priyadarshi, C., Puljak, I, Rhode, W., Ribó Gomis, Marc, Rico, J., Righi, C., Rugliancich, A., Saha, L., Sahakyan, N., Saito, T., Sakurai, S., Satalecka, K., Saturni, F. G., Schleicher, B., Schmidt, K., Schweizer, T., Sitarek, J., Snidaric, I, Sobczynska, D., Spolon, A., Stamerra, A., Strom, D., Strzys, M., Suda, Y., Suric, T., Takahashi, M., Tavecchio, F., Temnikov, P., Terzic, T., Teshima, M., Torres-Alba, N., Tosti, L., Truzzi, S., Tutone, A., van Scherpenberg, J., Vanzo, G., Vazquez Acosta, M., Ventura, Salvador, Verguilov, V., Vigorito, C. F., Vitale, V., Vovk, I, Will, M., Zaric, D., Nava, L.
Tipo de recurso:	artículo
Estado:	Versión publicada
Fecha de publicación:	2021
País:	España
Institución:	Universidad de Barcelona
Repositorio:	Dipòsit Digital de la UB
OAI Identifier:	oai:diposit.ub.edu:2445/220302
Acceso en línea:	https://hdl.handle.net/2445/220302
Access Level:	acceso abierto
Palabra clave:	Astrofísica Esclat de raigs gamma Estels de neutrons Astrophysics Gamma ray bursts Neutron stars

id	ES_cd218fbc48ea6ba8ccc7779e1d9f9a5b
oai_identifier_str	oai:diposit.ub.edu:2445/220302
network_acronym_str	ES
network_name_str	España
repository_id_str
dc.title.none.fl_str_mv	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*
title	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*
spellingShingle	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B* Acciari, V. A. Astrofísica Esclat de raigs gamma Estels de neutrons Astrophysics Gamma ray bursts Neutron stars
title_short	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*
title_full	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*
title_fullStr	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*
title_full_unstemmed	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*
title_sort	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*
dc.creator.none.fl_str_mv	Acciari, V. A. Ansoldi, S. Antonelli, L. A. Engels, A. Arbet Asano, K. Baack, D. Babic, A. Baquero, A. de Almeida, U. Barres Barrio, J. A. Becerra Gonzalez, J. Bednarek, W. Bellizzi, L. Bernardini, E. Bernardos, M. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bosnjak, Z. Busetto, G. Carosi, R. Ceribella, G. Cerruti, M. Chai, Y. Chilingarian, A. Cikota, S. Colak, S. M. Colombo, Elisabetta Contreras, J. L. Cortina, J. Covino, S. D'Amico, G. D'Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Delgado Mendez, C. Depaoli, D. Di Pierro, F. Di Venere, L. Do Souto Espineira, E. Prester, D. Dominis Donini, A. Dorner, D. Doro, M. Elsaesser, D. Ramazani, V. Fallah Fattorini, A. Ferrara, G. Foffano, L. Fonseca, M. V Font, L. Fruck, C. Fukami, S. Garcia Lopez, R. J. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Green, J. G. Green, D. Hadasch, D. Hahn, A. Heckmann, L. Herrera, J. Hoang, J. Hrupec, D. Huetten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jormanainen, J. Jouvin, L. Kajiwara, Y. Karjalainen, M. Kerszberg, D. Kobayashi, Y. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Lombardi, S. Longo, F. Lopez-Coto, R. Lopez-Moya, M. Lopez-Oramas, A. Loporchio, S. Fraga, B. Machado de Oliveira Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Mariotti, M. Martinez, M. Mazin, D. Mender, S. Miceli, D. Miener, T. Micanovic, S. Minev, M. Miranda, J. M. Mirzoyan, R. Molina, Edgar Moralejo, A. Morcuende, D. Moreno Baltà, Victorià Moretti, E. Neustroev, V Nigro, C. Nilsson, K. Ninci, D. Nishijima, K. Noda, K. Nozaki, S. Ohtani, Y. Oka, T. Otero-Santos, J. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes i Poy, Josep Maria Pavletic, L. Penil, P. Perennes, C. Persic, M. Moroni, P. G. Prada Prandini, E. Priyadarshi, C. Puljak, I Rhode, W. Ribó Gomis, Marc Rico, J. Righi, C. Rugliancich, A. Saha, L. Sahakyan, N. Saito, T. Sakurai, S. Satalecka, K. Saturni, F. G. Schleicher, B. Schmidt, K. Schweizer, T. Sitarek, J. Snidaric, I Sobczynska, D. Spolon, A. Stamerra, A. Strom, D. Strzys, M. Suda, Y. Suric, T. Takahashi, M. Tavecchio, F. Temnikov, P. Terzic, T. Teshima, M. Torres-Alba, N. Tosti, L. Truzzi, S. Tutone, A. van Scherpenberg, J. Vanzo, G. Vazquez Acosta, M. Ventura, Salvador Verguilov, V. Vigorito, C. F. Vitale, V. Vovk, I Will, M. Zaric, D. Nava, L.
author	Acciari, V. A.
author_facet	Acciari, V. A. Ansoldi, S. Antonelli, L. A. Engels, A. Arbet Asano, K. Baack, D. Babic, A. Baquero, A. de Almeida, U. Barres Barrio, J. A. Becerra Gonzalez, J. Bednarek, W. Bellizzi, L. Bernardini, E. Bernardos, M. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bosnjak, Z. Busetto, G. Carosi, R. Ceribella, G. Cerruti, M. Chai, Y. Chilingarian, A. Cikota, S. Colak, S. M. Colombo, Elisabetta Contreras, J. L. Cortina, J. Covino, S. D'Amico, G. D'Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Delgado Mendez, C. Depaoli, D. Di Pierro, F. Di Venere, L. Do Souto Espineira, E. Prester, D. Dominis Donini, A. Dorner, D. Doro, M. Elsaesser, D. Ramazani, V. Fallah Fattorini, A. Ferrara, G. Foffano, L. Fonseca, M. V Font, L. Fruck, C. Fukami, S. Garcia Lopez, R. J. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Green, J. G. Green, D. Hadasch, D. Hahn, A. Heckmann, L. Herrera, J. Hoang, J. Hrupec, D. Huetten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jormanainen, J. Jouvin, L. Kajiwara, Y. Karjalainen, M. Kerszberg, D. Kobayashi, Y. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Lombardi, S. Longo, F. Lopez-Coto, R. Lopez-Moya, M. Lopez-Oramas, A. Loporchio, S. Fraga, B. Machado de Oliveira Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Mariotti, M. Martinez, M. Mazin, D. Mender, S. Miceli, D. Miener, T. Micanovic, S. Minev, M. Miranda, J. M. Mirzoyan, R. Molina, Edgar Moralejo, A. Morcuende, D. Moreno Baltà, Victorià Moretti, E. Neustroev, V Nigro, C. Nilsson, K. Ninci, D. Nishijima, K. Noda, K. Nozaki, S. Ohtani, Y. Oka, T. Otero-Santos, J. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes i Poy, Josep Maria Pavletic, L. Penil, P. Perennes, C. Persic, M. Moroni, P. G. Prada Prandini, E. Priyadarshi, C. Puljak, I Rhode, W. Ribó Gomis, Marc Rico, J. Righi, C. Rugliancich, A. Saha, L. Sahakyan, N. Saito, T. Sakurai, S. Satalecka, K. Saturni, F. G. Schleicher, B. Schmidt, K. Schweizer, T. Sitarek, J. Snidaric, I Sobczynska, D. Spolon, A. Stamerra, A. Strom, D. Strzys, M. Suda, Y. Suric, T. Takahashi, M. Tavecchio, F. Temnikov, P. Terzic, T. Teshima, M. Torres-Alba, N. Tosti, L. Truzzi, S. Tutone, A. van Scherpenberg, J. Vanzo, G. Vazquez Acosta, M. Ventura, Salvador Verguilov, V. Vigorito, C. F. Vitale, V. Vovk, I Will, M. Zaric, D. Nava, L.
author_role	author
author2	Ansoldi, S. Antonelli, L. A. Engels, A. Arbet Asano, K. Baack, D. Babic, A. Baquero, A. de Almeida, U. Barres Barrio, J. A. Becerra Gonzalez, J. Bednarek, W. Bellizzi, L. Bernardini, E. Bernardos, M. Berti, A. Besenrieder, J. Bhattacharyya, W. Bigongiari, C. Biland, A. Blanch, O. Bonnoli, G. Bosnjak, Z. Busetto, G. Carosi, R. Ceribella, G. Cerruti, M. Chai, Y. Chilingarian, A. Cikota, S. Colak, S. M. Colombo, Elisabetta Contreras, J. L. Cortina, J. Covino, S. D'Amico, G. D'Elia, V. Da Vela, P. Dazzi, F. De Angelis, A. De Lotto, B. Delfino, M. Delgado, J. Delgado Mendez, C. Depaoli, D. Di Pierro, F. Di Venere, L. Do Souto Espineira, E. Prester, D. Dominis Donini, A. Dorner, D. Doro, M. Elsaesser, D. Ramazani, V. Fallah Fattorini, A. Ferrara, G. Foffano, L. Fonseca, M. V Font, L. Fruck, C. Fukami, S. Garcia Lopez, R. J. Garczarczyk, M. Gasparyan, S. Gaug, M. Giglietto, N. Giordano, F. Gliwny, P. Godinovic, N. Green, J. G. Green, D. Hadasch, D. Hahn, A. Heckmann, L. Herrera, J. Hoang, J. Hrupec, D. Huetten, M. Inada, T. Inoue, S. Ishio, K. Iwamura, Y. Jormanainen, J. Jouvin, L. Kajiwara, Y. Karjalainen, M. Kerszberg, D. Kobayashi, Y. Kubo, H. Kushida, J. Lamastra, A. Lelas, D. Leone, F. Lindfors, E. Lombardi, S. Longo, F. Lopez-Coto, R. Lopez-Moya, M. Lopez-Oramas, A. Loporchio, S. Fraga, B. Machado de Oliveira Maggio, C. Majumdar, P. Makariev, M. Mallamaci, M. Maneva, G. Manganaro, M. Mannheim, K. Maraschi, L. Mariotti, M. Martinez, M. Mazin, D. Mender, S. Miceli, D. Miener, T. Micanovic, S. Minev, M. Miranda, J. M. Mirzoyan, R. Molina, Edgar Moralejo, A. Morcuende, D. Moreno Baltà, Victorià Moretti, E. Neustroev, V Nigro, C. Nilsson, K. Ninci, D. Nishijima, K. Noda, K. Nozaki, S. Ohtani, Y. Oka, T. Otero-Santos, J. Paiano, S. Palatiello, M. Paneque, D. Paoletti, R. Paredes i Poy, Josep Maria Pavletic, L. Penil, P. Perennes, C. Persic, M. Moroni, P. G. Prada Prandini, E. Priyadarshi, C. Puljak, I Rhode, W. Ribó Gomis, Marc Rico, J. Righi, C. Rugliancich, A. Saha, L. Sahakyan, N. Saito, T. Sakurai, S. Satalecka, K. Saturni, F. G. Schleicher, B. Schmidt, K. Schweizer, T. Sitarek, J. Snidaric, I Sobczynska, D. Spolon, A. Stamerra, A. Strom, D. Strzys, M. Suda, Y. Suric, T. Takahashi, M. Tavecchio, F. Temnikov, P. Terzic, T. Teshima, M. Torres-Alba, N. Tosti, L. Truzzi, S. Tutone, A. van Scherpenberg, J. Vanzo, G. Vazquez Acosta, M. Ventura, Salvador Verguilov, V. Vigorito, C. F. Vitale, V. Vovk, I Will, M. Zaric, D. Nava, L.
author2_role	author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author
dc.subject.none.fl_str_mv	Astrofísica Esclat de raigs gamma Estels de neutrons Astrophysics Gamma ray bursts Neutron stars
topic	Astrofísica Esclat de raigs gamma Estels de neutrons Astrophysics Gamma ray bursts Neutron stars
description	The coincident detection of GW170817 in gravitational waves and electromagnetic radiation spanning the radio to MeV gamma-ray bands provided the rst direct evidence that short gamma-ray bursts (GRBs) can originate from binary neutron star (BNS) mergers. On the other hand, the properties of short GRBs in high-energy gamma-rays are still poorly constrained, with only∼20 events detected in the GeV band, and none in the TeV band. GRB 160821B is one of the nearest short GRBs known at z = 0.162. Recent analyses of the multiwavelength observational data of its afterglow emission revealed an optical-infrared kilonova component, characteristic of heavy-element nucleosynthesis in a BNS merger. Aiming to better clarify the nature of short GRBs, this burst was automatically followed up with the MAGIC telescopes, starting from 24 s after the burst trigger. Evidence of a gamma-ray signal is found above∼0.5 TeV at a signi cance of∼ 3σ during observations that lasted until 4 hr after the burst. Assuming that the observed excess events correspond to gamma-ray emission from GRB 160821B, in conjunction with data at other wavelengths, we investigate its origin in the framework of GRB afterglow models. The simplest interpretation with one-zone models of synchrotron-self-Compton emission from the external forward shock has dif culty accounting for the putative TeV ux. Alternative scenarios are discussed where the TeV emission can be relatively enhanced. The role of future GeV–TeV observations of short GRBs in advancing our understanding of BNS mergers and related topics is brie y addressed.
publishDate	2021
dc.date.none.fl_str_mv	2021
dc.type.none.fl_str_mv	info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion
format	article
status_str	publishedVersion
dc.identifier.none.fl_str_mv	https://hdl.handle.net/2445/220302
url	https://hdl.handle.net/2445/220302
dc.language.none.fl_str_mv	Inglés
language_invalid_str_mv	Inglés
dc.relation.none.fl_str_mv	Reproducció del document publicat a: https://doi.org/10.3847/1538-4357/abd249 Astrophysical Journal, 2021, vol. 908, num.1 https://doi.org/10.3847/1538-4357/abd249
dc.rights.none.fl_str_mv	(c) American Astronomical Society, 2021 info:eu-repo/semantics/openAccess
rights_invalid_str_mv	(c) American Astronomical Society, 2021
eu_rights_str_mv	openAccess
dc.format.none.fl_str_mv	application/pdf
dc.publisher.none.fl_str_mv	Institute of Physics (IOP)
publisher.none.fl_str_mv	Institute of Physics (IOP)
dc.source.none.fl_str_mv	Articles publicats en revistes (Física Quàntica i Astrofísica) reponame:Dipòsit Digital de la UB instname:Universidad de Barcelona
instname_str	Universidad de Barcelona
reponame_str	Dipòsit Digital de la UB
collection	Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_	1869419782650986496
spelling	MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*Acciari, V. A.Ansoldi, S.Antonelli, L. A.Engels, A. ArbetAsano, K.Baack, D.Babic, A.Baquero, A.de Almeida, U. BarresBarrio, J. A.Becerra Gonzalez, J.Bednarek, W.Bellizzi, L.Bernardini, E.Bernardos, M.Berti, A.Besenrieder, J.Bhattacharyya, W.Bigongiari, C.Biland, A.Blanch, O.Bonnoli, G.Bosnjak, Z.Busetto, G.Carosi, R.Ceribella, G.Cerruti, M.Chai, Y.Chilingarian, A.Cikota, S.Colak, S. M.Colombo, ElisabettaContreras, J. L.Cortina, J.Covino, S.D'Amico, G.D'Elia, V.Da Vela, P.Dazzi, F.De Angelis, A.De Lotto, B.Delfino, M.Delgado, J.Delgado Mendez, C.Depaoli, D.Di Pierro, F.Di Venere, L.Do Souto Espineira, E.Prester, D. DominisDonini, A.Dorner, D.Doro, M.Elsaesser, D.Ramazani, V. FallahFattorini, A.Ferrara, G.Foffano, L.Fonseca, M. VFont, L.Fruck, C.Fukami, S.Garcia Lopez, R. J.Garczarczyk, M.Gasparyan, S.Gaug, M.Giglietto, N.Giordano, F.Gliwny, P.Godinovic, N.Green, J. G.Green, D.Hadasch, D.Hahn, A.Heckmann, L.Herrera, J.Hoang, J.Hrupec, D.Huetten, M.Inada, T.Inoue, S.Ishio, K.Iwamura, Y.Jormanainen, J.Jouvin, L.Kajiwara, Y.Karjalainen, M.Kerszberg, D.Kobayashi, Y.Kubo, H.Kushida, J.Lamastra, A.Lelas, D.Leone, F.Lindfors, E.Lombardi, S.Longo, F.Lopez-Coto, R.Lopez-Moya, M.Lopez-Oramas, A.Loporchio, S.Fraga, B. Machado de OliveiraMaggio, C.Majumdar, P.Makariev, M.Mallamaci, M.Maneva, G.Manganaro, M.Mannheim, K.Maraschi, L.Mariotti, M.Martinez, M.Mazin, D.Mender, S.Miceli, D.Miener, T.Micanovic, S.Minev, M.Miranda, J. M.Mirzoyan, R.Molina, EdgarMoralejo, A.Morcuende, D.Moreno Baltà, VictoriàMoretti, E.Neustroev, VNigro, C.Nilsson, K.Ninci, D.Nishijima, K.Noda, K.Nozaki, S.Ohtani, Y.Oka, T.Otero-Santos, J.Paiano, S.Palatiello, M.Paneque, D.Paoletti, R.Paredes i Poy, Josep MariaPavletic, L.Penil, P.Perennes, C.Persic, M.Moroni, P. G. PradaPrandini, E.Priyadarshi, C.Puljak, IRhode, W.Ribó Gomis, MarcRico, J.Righi, C.Rugliancich, A.Saha, L.Sahakyan, N.Saito, T.Sakurai, S.Satalecka, K.Saturni, F. G.Schleicher, B.Schmidt, K.Schweizer, T.Sitarek, J.Snidaric, ISobczynska, D.Spolon, A.Stamerra, A.Strom, D.Strzys, M.Suda, Y.Suric, T.Takahashi, M.Tavecchio, F.Temnikov, P.Terzic, T.Teshima, M.Torres-Alba, N.Tosti, L.Truzzi, S.Tutone, A.van Scherpenberg, J.Vanzo, G.Vazquez Acosta, M.Ventura, SalvadorVerguilov, V.Vigorito, C. F.Vitale, V.Vovk, IWill, M.Zaric, D.Nava, L.AstrofísicaEsclat de raigs gammaEstels de neutronsAstrophysicsGamma ray burstsNeutron starsThe coincident detection of GW170817 in gravitational waves and electromagnetic radiation spanning the radio to MeV gamma-ray bands provided the rst direct evidence that short gamma-ray bursts (GRBs) can originate from binary neutron star (BNS) mergers. On the other hand, the properties of short GRBs in high-energy gamma-rays are still poorly constrained, with only∼20 events detected in the GeV band, and none in the TeV band. GRB 160821B is one of the nearest short GRBs known at z = 0.162. Recent analyses of the multiwavelength observational data of its afterglow emission revealed an optical-infrared kilonova component, characteristic of heavy-element nucleosynthesis in a BNS merger. Aiming to better clarify the nature of short GRBs, this burst was automatically followed up with the MAGIC telescopes, starting from 24 s after the burst trigger. Evidence of a gamma-ray signal is found above∼0.5 TeV at a signi cance of∼ 3σ during observations that lasted until 4 hr after the burst. Assuming that the observed excess events correspond to gamma-ray emission from GRB 160821B, in conjunction with data at other wavelengths, we investigate its origin in the framework of GRB afterglow models. The simplest interpretation with one-zone models of synchrotron-self-Compton emission from the external forward shock has dif culty accounting for the putative TeV ux. Alternative scenarios are discussed where the TeV emission can be relatively enhanced. The role of future GeV–TeV observations of short GRBs in advancing our understanding of BNS mergers and related topics is brie y addressed.Institute of Physics (IOP)2021info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/220302Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció del document publicat a: https://doi.org/10.3847/1538-4357/abd249Astrophysical Journal, 2021, vol. 908, num.1https://doi.org/10.3847/1538-4357/abd249(c) American Astronomical Society, 2021info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2203022026-05-27T06:46:51Z
score	15,81155

MAGIC Observations of the Nearby Short Gamma-Ray Burst GRB 160821B*

Similares en LA Referencia