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GRB 221009A: the B.O.A.T Burst that Shines in Gamma Rays

Fuente: arXiv

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Autori principali:	Axelsson, M., Ajello, M., Arimoto, M., Baldini, L., Ballet, J., Baring, M. G., Bartolini, C., Bastieri, D., Gonzalez, J. Becerra, Bellazzini, R., Berenji, B., Bissaldi, E., Blandford, R. D., Bonino, R., Bruel, P., Buson, S., Cameron, R. A., Caputo, R., Caraveo, P. A., Cavazzuti, E., Cheung, C. C., Chiaro, G., Cibrario, N., Ciprini, S., Cozzolongo, G., Orestano, P. Cristarella, Crnogorcevic, M., Cuoco, A., Cutini, S., D'Ammando, F., De Gaetano, S., Di Lalla, N., Dinesh, A., Di Tria, R., Di Venere, L., Domínguez, A., Fegan, S. J., Ferrara, E. C., Fiori, A., Franckowiak, A., Fukazawa, Y., Funk, S., Fusco, P., Galanti, G., Gargano, F., Gasbarra, C., Germani, S., Giacchino, F., Giglietto, N., Giliberti, M., Gill, R., Giordano, F., Giroletti, M., Granot, J., Green, D., Grenier, I. A., Guiriec, S., Gustafsson, M., Hashizume, M., Hays, E., Hewitt, J. W., Horan, D., Kayanoki, T., Kuss, M., Laviron, A., Li, J., Liodakis, I., Longo, F., Loparco, F., Lorusso, L., Lott, B., Lovellette, M. N., Lubrano, P., Maldera, S., Malyshev, D., Manfreda, A., Martí-Devesa, G., Martinelli, R., Castellanos, I. Martinez, Mazziotta, M. N., McEnery, J. E., Mereu, I., Meyer, M., Michelson, P. F., Mirabal, N., Mitthumsiri, W., Mizuno, T., Monti-Guarnieri, P., Monzani, M. E., Morishita, T., Morselli, A., Moskalenko, I. V., Negro, M., Niwa, R., Omodei, N., Orienti, M., Orlando, E., Paneque, D., Panzarini, G., Persic, M., Pesce-Rollins, M., Petrosian, V., Pillera, R., Piron, F., Porter, T. A., Principe, G., Racusin, J. L., Rainò, S., Rando, R., Rani, B., Razzano, M., Razzaque, S., Reimer, A., Reimer, O., Ryde, F., Sánchez-Conde, M., Parkinson, P. M. Saz, Serini, D., Sgrò, C., Sharma, V., Siskind, E. J., Spandre, G., Spinelli, P., Suson, D. J., Tajima, H., Tak, D., Thayer, J. B., Torres, D. F., Valverde, J., Zaharijas, G., Lesage, S., Briggs, M. S., Burns, E., Bala, S., Bhat, P. N., Cleveland, W. H., Dalessi, S., de Barra, C., Gibby, M., Giles, M. M., Hamburg, R., Hristov, B. A., Hui, C. M., Kocevski, D., Mailyan, B., Malacaria, C., McBreen, S., Poolakkil, S., Roberts, O. J., Scotton, L., Veres, P., von Kienlin, A., Wilson-Hodge, C. A., Wood, J.
Natura:	Preprint
Pubblicazione:	2024
Soggetti:	High Energy Astrophysical Phenomena
Accesso online:	Acceder al recurso
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_version_	1866916384957530112
author	Axelsson, M. Ajello, M. Arimoto, M. Baldini, L. Ballet, J. Baring, M. G. Bartolini, C. Bastieri, D. Gonzalez, J. Becerra Bellazzini, R. Berenji, B. Bissaldi, E. Blandford, R. D. Bonino, R. Bruel, P. Buson, S. Cameron, R. A. Caputo, R. Caraveo, P. A. Cavazzuti, E. Cheung, C. C. Chiaro, G. Cibrario, N. Ciprini, S. Cozzolongo, G. Orestano, P. Cristarella Crnogorcevic, M. Cuoco, A. Cutini, S. D'Ammando, F. De Gaetano, S. Di Lalla, N. Dinesh, A. Di Tria, R. Di Venere, L. Domínguez, A. Fegan, S. J. Ferrara, E. C. Fiori, A. Franckowiak, A. Fukazawa, Y. Funk, S. Fusco, P. Galanti, G. Gargano, F. Gasbarra, C. Germani, S. Giacchino, F. Giglietto, N. Giliberti, M. Gill, R. Giordano, F. Giroletti, M. Granot, J. Green, D. Grenier, I. A. Guiriec, S. Gustafsson, M. Hashizume, M. Hays, E. Hewitt, J. W. Horan, D. Kayanoki, T. Kuss, M. Laviron, A. Li, J. Liodakis, I. Longo, F. Loparco, F. Lorusso, L. Lott, B. Lovellette, M. N. Lubrano, P. Maldera, S. Malyshev, D. Manfreda, A. Martí-Devesa, G. Martinelli, R. Castellanos, I. Martinez Mazziotta, M. N. McEnery, J. E. Mereu, I. Meyer, M. Michelson, P. F. Mirabal, N. Mitthumsiri, W. Mizuno, T. Monti-Guarnieri, P. Monzani, M. E. Morishita, T. Morselli, A. Moskalenko, I. V. Negro, M. Niwa, R. Omodei, N. Orienti, M. Orlando, E. Paneque, D. Panzarini, G. Persic, M. Pesce-Rollins, M. Petrosian, V. Pillera, R. Piron, F. Porter, T. A. Principe, G. Racusin, J. L. Rainò, S. Rando, R. Rani, B. Razzano, M. Razzaque, S. Reimer, A. Reimer, O. Ryde, F. Sánchez-Conde, M. Parkinson, P. M. Saz Serini, D. Sgrò, C. Sharma, V. Siskind, E. J. Spandre, G. Spinelli, P. Suson, D. J. Tajima, H. Tak, D. Thayer, J. B. Torres, D. F. Valverde, J. Zaharijas, G. Lesage, S. Briggs, M. S. Burns, E. Bala, S. Bhat, P. N. Cleveland, W. H. Dalessi, S. de Barra, C. Gibby, M. Giles, M. M. Hamburg, R. Hristov, B. A. Hui, C. M. Kocevski, D. Mailyan, B. Malacaria, C. McBreen, S. Poolakkil, S. Roberts, O. J. Scotton, L. Veres, P. von Kienlin, A. Wilson-Hodge, C. A. Wood, J.
author_facet	Axelsson, M. Ajello, M. Arimoto, M. Baldini, L. Ballet, J. Baring, M. G. Bartolini, C. Bastieri, D. Gonzalez, J. Becerra Bellazzini, R. Berenji, B. Bissaldi, E. Blandford, R. D. Bonino, R. Bruel, P. Buson, S. Cameron, R. A. Caputo, R. Caraveo, P. A. Cavazzuti, E. Cheung, C. C. Chiaro, G. Cibrario, N. Ciprini, S. Cozzolongo, G. Orestano, P. Cristarella Crnogorcevic, M. Cuoco, A. Cutini, S. D'Ammando, F. De Gaetano, S. Di Lalla, N. Dinesh, A. Di Tria, R. Di Venere, L. Domínguez, A. Fegan, S. J. Ferrara, E. C. Fiori, A. Franckowiak, A. Fukazawa, Y. Funk, S. Fusco, P. Galanti, G. Gargano, F. Gasbarra, C. Germani, S. Giacchino, F. Giglietto, N. Giliberti, M. Gill, R. Giordano, F. Giroletti, M. Granot, J. Green, D. Grenier, I. A. Guiriec, S. Gustafsson, M. Hashizume, M. Hays, E. Hewitt, J. W. Horan, D. Kayanoki, T. Kuss, M. Laviron, A. Li, J. Liodakis, I. Longo, F. Loparco, F. Lorusso, L. Lott, B. Lovellette, M. N. Lubrano, P. Maldera, S. Malyshev, D. Manfreda, A. Martí-Devesa, G. Martinelli, R. Castellanos, I. Martinez Mazziotta, M. N. McEnery, J. E. Mereu, I. Meyer, M. Michelson, P. F. Mirabal, N. Mitthumsiri, W. Mizuno, T. Monti-Guarnieri, P. Monzani, M. E. Morishita, T. Morselli, A. Moskalenko, I. V. Negro, M. Niwa, R. Omodei, N. Orienti, M. Orlando, E. Paneque, D. Panzarini, G. Persic, M. Pesce-Rollins, M. Petrosian, V. Pillera, R. Piron, F. Porter, T. A. Principe, G. Racusin, J. L. Rainò, S. Rando, R. Rani, B. Razzano, M. Razzaque, S. Reimer, A. Reimer, O. Ryde, F. Sánchez-Conde, M. Parkinson, P. M. Saz Serini, D. Sgrò, C. Sharma, V. Siskind, E. J. Spandre, G. Spinelli, P. Suson, D. J. Tajima, H. Tak, D. Thayer, J. B. Torres, D. F. Valverde, J. Zaharijas, G. Lesage, S. Briggs, M. S. Burns, E. Bala, S. Bhat, P. N. Cleveland, W. H. Dalessi, S. de Barra, C. Gibby, M. Giles, M. M. Hamburg, R. Hristov, B. A. Hui, C. M. Kocevski, D. Mailyan, B. Malacaria, C. McBreen, S. Poolakkil, S. Roberts, O. J. Scotton, L. Veres, P. von Kienlin, A. Wilson-Hodge, C. A. Wood, J.
contents	We present a complete analysis of Fermi Large Area Telescope (LAT) data of GRB 221009A, the brightest Gamma-Ray Burst (GRB) ever detected. The burst emission above 30 MeV detected by the LAT preceded by 1 s the low-energy (< 10 MeV) pulse that triggered the Fermi Gamma-Ray Burst Monitor (GBM), as has been observed in other GRBs. The prompt phase of GRB 221009A lasted a few hundred seconds. It was so bright that we identify a Bad Time Interval (BTI) of 64 seconds caused by the extremely high flux of hard X-rays and soft gamma rays, during which the event reconstruction efficiency was poor and the dead time fraction quite high. The late-time emission decayed as a power law, but the extrapolation of the late-time emission during the first 450 seconds suggests that the afterglow started during the prompt emission. We also found that high-energy events observed by the LAT are incompatible with synchrotron origin, and, during the prompt emission, are more likely related to an extra component identified as synchrotron self-Compton (SSC). A remarkable 400 GeV photon, detected by the LAT 33 ks after the GBM trigger and directionally consistent with the location of GRB 221009A, is hard to explain as a product of SSC or TeV electromagnetic cascades, and the process responsible for its origin is uncertain. Because of its proximity and energetic nature, GRB 221009A is an extremely rare event.
format	Preprint
id	arxiv_https___arxiv_org_abs_2409_04580
institution	arXiv
publishDate	2024
record_format	arxiv
spellingShingle	GRB 221009A: the B.O.A.T Burst that Shines in Gamma Rays Axelsson, M. Ajello, M. Arimoto, M. Baldini, L. Ballet, J. Baring, M. G. Bartolini, C. Bastieri, D. Gonzalez, J. Becerra Bellazzini, R. Berenji, B. Bissaldi, E. Blandford, R. D. Bonino, R. Bruel, P. Buson, S. Cameron, R. A. Caputo, R. Caraveo, P. A. Cavazzuti, E. Cheung, C. C. Chiaro, G. Cibrario, N. Ciprini, S. Cozzolongo, G. Orestano, P. Cristarella Crnogorcevic, M. Cuoco, A. Cutini, S. D'Ammando, F. De Gaetano, S. Di Lalla, N. Dinesh, A. Di Tria, R. Di Venere, L. Domínguez, A. Fegan, S. J. Ferrara, E. C. Fiori, A. Franckowiak, A. Fukazawa, Y. Funk, S. Fusco, P. Galanti, G. Gargano, F. Gasbarra, C. Germani, S. Giacchino, F. Giglietto, N. Giliberti, M. Gill, R. Giordano, F. Giroletti, M. Granot, J. Green, D. Grenier, I. A. Guiriec, S. Gustafsson, M. Hashizume, M. Hays, E. Hewitt, J. W. Horan, D. Kayanoki, T. Kuss, M. Laviron, A. Li, J. Liodakis, I. Longo, F. Loparco, F. Lorusso, L. Lott, B. Lovellette, M. N. Lubrano, P. Maldera, S. Malyshev, D. Manfreda, A. Martí-Devesa, G. Martinelli, R. Castellanos, I. Martinez Mazziotta, M. N. McEnery, J. E. Mereu, I. Meyer, M. Michelson, P. F. Mirabal, N. Mitthumsiri, W. Mizuno, T. Monti-Guarnieri, P. Monzani, M. E. Morishita, T. Morselli, A. Moskalenko, I. V. Negro, M. Niwa, R. Omodei, N. Orienti, M. Orlando, E. Paneque, D. Panzarini, G. Persic, M. Pesce-Rollins, M. Petrosian, V. Pillera, R. Piron, F. Porter, T. A. Principe, G. Racusin, J. L. Rainò, S. Rando, R. Rani, B. Razzano, M. Razzaque, S. Reimer, A. Reimer, O. Ryde, F. Sánchez-Conde, M. Parkinson, P. M. Saz Serini, D. Sgrò, C. Sharma, V. Siskind, E. J. Spandre, G. Spinelli, P. Suson, D. J. Tajima, H. Tak, D. Thayer, J. B. Torres, D. F. Valverde, J. Zaharijas, G. Lesage, S. Briggs, M. S. Burns, E. Bala, S. Bhat, P. N. Cleveland, W. H. Dalessi, S. de Barra, C. Gibby, M. Giles, M. M. Hamburg, R. Hristov, B. A. Hui, C. M. Kocevski, D. Mailyan, B. Malacaria, C. McBreen, S. Poolakkil, S. Roberts, O. J. Scotton, L. Veres, P. von Kienlin, A. Wilson-Hodge, C. A. Wood, J. High Energy Astrophysical Phenomena We present a complete analysis of Fermi Large Area Telescope (LAT) data of GRB 221009A, the brightest Gamma-Ray Burst (GRB) ever detected. The burst emission above 30 MeV detected by the LAT preceded by 1 s the low-energy (< 10 MeV) pulse that triggered the Fermi Gamma-Ray Burst Monitor (GBM), as has been observed in other GRBs. The prompt phase of GRB 221009A lasted a few hundred seconds. It was so bright that we identify a Bad Time Interval (BTI) of 64 seconds caused by the extremely high flux of hard X-rays and soft gamma rays, during which the event reconstruction efficiency was poor and the dead time fraction quite high. The late-time emission decayed as a power law, but the extrapolation of the late-time emission during the first 450 seconds suggests that the afterglow started during the prompt emission. We also found that high-energy events observed by the LAT are incompatible with synchrotron origin, and, during the prompt emission, are more likely related to an extra component identified as synchrotron self-Compton (SSC). A remarkable 400 GeV photon, detected by the LAT 33 ks after the GBM trigger and directionally consistent with the location of GRB 221009A, is hard to explain as a product of SSC or TeV electromagnetic cascades, and the process responsible for its origin is uncertain. Because of its proximity and energetic nature, GRB 221009A is an extremely rare event.
title	GRB 221009A: the B.O.A.T Burst that Shines in Gamma Rays
topic	High Energy Astrophysical Phenomena
url	https://arxiv.org/abs/2409.04580