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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
earth and planetary sciences
Fermi-GBM Discovery of GRB 221009A: An Extraordinarily Bright GRB from Onset to Afterglow
Astrophysical Journal Letters, Volume 952, No. 2, Article L42, Year 2023
Notification
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Description
We report the discovery of GRB 221009A, the highest flux gamma-ray burst (GRB) ever observed by the Fermi Gamma-ray Burst Monitor (Fermi-GBM). This GRB has continuous prompt emission lasting more than 600 s, which smoothly transitions to afterglow emission visible in the Fermi-GBM energy range (8 keV-40 MeV), and total energetics higher than any other burst in the Fermi-GBM sample. By using a variety of new and existing analysis techniques we probe the spectral and temporal evolution of GRB 221009A. We find no emission prior to the Fermi-GBM trigger time (t 0; 2022 October 9 at 13:16:59.99 UTC), indicating that this is the time of prompt emission onset. The triggering pulse exhibits distinct spectral and temporal properties suggestive of the thermal, photospheric emission of shock breakout, with significant emission up to ∼15 MeV. We characterize the onset of external shock at t 0 + 600 s and find evidence of a plateau region in the early-afterglow phase, which transitions to a slope consistent with Swift-XRT afterglow measurements. We place the total energetics of GRB 221009A in context with the rest of the Fermi-GBM sample and find that this GRB has the highest total isotropic-equivalent energy (E γ,iso = 1.0 × 1055 erg) and second highest isotropic-equivalent luminosity (L γ,iso = 9.9 × 1053 erg s-1) based on its redshift of z = 0.151. These extreme energetics are what allowed us to observe the continuously emitting central engine of Fermi-GBM from the beginning of the prompt emission phase through the onset of early afterglow. © 2023. The Author(s). Published by the American Astronomical Society.
Authors & Co-Authors
Veres, Péter
United States, Huntsville
The University of Alabama in Huntsville
Briggs, Michael S.
United States, Huntsville
The University of Alabama in Huntsville
Kocevski, Daniel
United States, Washington, D.c.
National Aeronautics and Space Administration
Burns, Eric
United States, Baton Rouge
Louisiana State University
Wilson-Hodge, Colleen A.
United States, Washington, D.c.
National Aeronautics and Space Administration
Bhat, P. Narayana
United States, Huntsville
The University of Alabama in Huntsville
Huppenkothen, Daniela
Netherlands, Utrecht
Sron Netherlands Institute for Space Research
Fryer, Chris L.
United States, Los Alamos
Los Alamos National Laboratory
Hamburg, Rachel
France, Orsay
Laboratoire de Physique Des 2 Infinis Irène Joliot-curie
Racusin, Judith L.
United States, Greenbelt
Nasa Goddard Space Flight Center
Bissaldi, Elisabetta
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Fletcher, Corinne L.
United States, Huntsville
Huntsville Program Office
Hristov, Boyan A.
United States, Huntsville
The University of Alabama in Huntsville
Hui, C. Michelle
United States, Washington, D.c.
National Aeronautics and Space Administration
Mailyan, Bagrat G.
United States, Melbourne
Florida Institute of Technology
Malacaria, Christian
Switzerland, Bern
International Space Science Institute
Poolakkil, S.
United States, Huntsville
The University of Alabama in Huntsville
Roberts, Oliver J.
United States, Huntsville
Huntsville Program Office
von Kienlin, Andreas
Germany, Garching Bei Munchen
Max Planck Institute for Extraterrestrial Physics
Ajello, Marco
United States, Clemson
Clemson University
Baldini, Luca
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Ballet, Jean
France, Gif-sur-yvette
Commissariat a L'energie Atomique et Aux Energies Alternatives
Baring, Matthew G.
United States, Houston
Rice University
Bastieri, D.
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
González, Josefa Becerra
Spain, San Cristobal de la Laguna
Instituto Astrofisico de Canarias
Bellazzini, Ronaldo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Blandford, Rogerd D.
Unknown Affiliation
Bonino, Raffaella
Unknown Affiliation
Bruel, Philippe V.
Unknown Affiliation
Buson, Sara
Unknown Affiliation
Cameron, Robert A.
Unknown Affiliation
Caputo, Regina
Unknown Affiliation
Caraveo, Patrizia A.
Unknown Affiliation
Cavazzuti, Elisabetta
Unknown Affiliation
Chiaro, Graziano
Unknown Affiliation
Cibrario, Nicolò
Unknown Affiliation
Ciprini, Stefano
Unknown Affiliation
Crnogorcevic, Milena
Unknown Affiliation
Cuoco, Alessandro
Unknown Affiliation
Cutini, S.
Unknown Affiliation
D'Ammando, Filippo
Unknown Affiliation
de Gaetano, Salvatore
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Di Lalla, Niccoló D.
Unknown Affiliation
Di Venere, Leonardo
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Domínguez, A. D.
Unknown Affiliation
Fegan, Stephen J.
Unknown Affiliation
Ferrara, Elizabeth C.
Unknown Affiliation
Fleischhack, Henrike
Unknown Affiliation
Fukazawa, Yasushi
Unknown Affiliation
Fusco, Piergiorgio G.
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Galanti, Giorgio
Unknown Affiliation
Gammaldi, Viviana
Unknown Affiliation
Gargano, Fabio
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Gasparrini, Dario
Unknown Affiliation
Germani, Stefano
Unknown Affiliation
Giacchino, F.
Unknown Affiliation
Giglietto, Nicola
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Gill, Ramandeep
Unknown Affiliation
Giroletti, Marcello
Unknown Affiliation
Granot, Jonathan
Unknown Affiliation
Green, David M.
Unknown Affiliation
Grenier, Isabelle A.
Unknown Affiliation
Guiriec, Sylvain
Unknown Affiliation
Gustafsson, Michael
Unknown Affiliation
Hays, Elizabeth A.
Unknown Affiliation
Horan, Deirdre
Unknown Affiliation
Hou, Xian
Unknown Affiliation
Kuss, Michael W.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Latronico, Luca
Unknown Affiliation
Lemoine-Goumard, Marianne
Unknown Affiliation
Li, Jian
Unknown Affiliation
Liodakis, Ioannis
Unknown Affiliation
Longo, Francesco
Unknown Affiliation
Loparco, Francesco
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Lovellette, Michael N.
Unknown Affiliation
Lubrano, Pasquale
Unknown Affiliation
Maldera, Simone
Unknown Affiliation
Manfreda, Alberto
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Martí.-Devesa, G.
Unknown Affiliation
Mazziotta, Mario Nicola
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
McEnery, Julie E.
Unknown Affiliation
Mereu, Isabella
Unknown Affiliation
Meyer, Manuel S.
Unknown Affiliation
Michelson, Peter F.
Unknown Affiliation
Mizuno, Tsunefumi
Unknown Affiliation
Monzani, Maria Elena
Unknown Affiliation
Morselli, Aldo
Unknown Affiliation
Moskalenko, Igor V.
Unknown Affiliation
Negro, Michela
Unknown Affiliation
Nuss, Eric
Unknown Affiliation
Omodei, Nicola
Unknown Affiliation
Orlando, E.
Unknown Affiliation
Paneque, David
Unknown Affiliation
Persic, Massimo
Unknown Affiliation
Pesce-Rollins, Melissa
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Pillera, Roberta
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Piron, Frédéric
Unknown Affiliation
Poon, Helen
Unknown Affiliation
Porter, Troy A.
Unknown Affiliation
Principe, Giacomo
Unknown Affiliation
Rainó, Silvia
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Rando, Riccardo
Italy, Padua
Istituto Nazionale Di Fisica Nucleare, Sezione Di Padova
Italy, Padua
Università Degli Studi Di Padova
Rani, Bindu
Unknown Affiliation
Razzano, Massimiliano
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Razzaque, Soebur
Unknown Affiliation
Reimer, Anita
Unknown Affiliation
Reimer, Olaf
Unknown Affiliation
Sánchez-Conde, Miguel A. A.
Unknown Affiliation
Scotton, Lorenzo
Unknown Affiliation
Serini, Davide
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Sgro, Carmelo
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Sharma, Vidushi
Unknown Affiliation
Siskind, Eric J.
Unknown Affiliation
Spandre, G.
Italy, Pisa
Istituto Nazionale Di Fisica Nucleare, Sezione Di Pisa
Spinelli, Paolo
Italy, Bari
Politecnico Di Bari
Italy, Bari
Istituto Nazionale Di Fisica Nucleare, Sezione Di Bari
Tajima, Hiro
Unknown Affiliation
Torres, Diego F.
Unknown Affiliation
Valverde, Janeth
Unknown Affiliation
Venters, Tonia M.
Unknown Affiliation
Wadiasingh, Zorawar
Unknown Affiliation
Wood, Kent S.
Unknown Affiliation
Zaharijaš, Gabrijela
Unknown Affiliation
Statistics
Citations: 11
Authors: 122
Affiliations: 21
Identifiers
Doi:
10.3847/2041-8213/ace5b4
ISSN:
20418205
Research Areas
Environmental