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- Brendan O’Connor
- Department of Physics, The George Washington University, 725 21st Street NW, Washington, DC 20052, USA.
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- Eleonora Troja
- Department of Physics, University of Rome “Tor Vergata”, via della Ricerca Scientifica 1, I-00133 Rome, Italy.
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- Geoffrey Ryan
- Perimeter Institute for Theoretical Physics, 31 Caroline St. N., Waterloo, ON N2L 2Y5, Canada.
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- Paz Beniamini
- Department of Natural Sciences, The Open University of Israel, P.O. Box 808, Ra’anana 4353701, Israel.
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- Hendrik van Eerten
- Physics Department, University of Bath, Claverton Down, Bath BA2 7AY, UK.
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- Jonathan Granot
- Department of Physics, The George Washington University, 725 21st Street NW, Washington, DC 20052, USA.
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- Simone Dichiara
- The Pennsylvania State University, 525 Davey Lab, University Park, PA 16802, USA.
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- Roberto Ricci
- Istituto Nazionale di Ricerca Metrologica, I-10135 Torino, Italy.
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- Vladimir Lipunov
- Sternberg Astronomical Institute, Lomonosov Moscow State University, Universitetsky pr. 13, 119234 Moscow, Russia.
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- James H. Gillanders
- Department of Physics, University of Rome “Tor Vergata”, via della Ricerca Scientifica 1, I-00133 Rome, Italy.
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- Ramandeep Gill
- Instituto de Radioastronomía y Astrofísica, Universidad Nacional Autónoma de México, Antigua Carretera. a Pátzcuaro #8701, Ex-Hda. San José de la Huerta, Morelia, Michoacán, C.P. 58089, México.
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- Michael Moss
- Department of Physics, The George Washington University, 725 21st Street NW, Washington, DC 20052, USA.
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- Shreya Anand
- Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA.
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- Igor Andreoni
- Department of Astronomy, University of Maryland, College Park, MD 20742-4111, USA.
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- Rosa L. Becerra
- Instituto de Ciencias Nucleares, Universidad Nacional Autónoma de México, 04510 México, CDMX, Mexico.
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- David A. H. Buckley
- Department of Astronomy, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa.
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- Nathaniel R. Butler
- School of Earth and Space Exploration, Arizona State University, Tempe, AZ 85287, USA.
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- Stephen B. Cenko
- Astrophysics Science Division, NASA Goddard Space Flight Center, 8800 Greenbelt Rd, Greenbelt, MD 20771, USA.
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- Aristarkh Chasovnikov
- Sternberg Astronomical Institute, Lomonosov Moscow State University, Universitetsky pr. 13, 119234 Moscow, Russia.
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- Joseph Durbak
- Department of Astronomy, University of Maryland, College Park, MD 20742-4111, USA.
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- Carlos Francile
- Observatorio Astronomico Felix Aguilar (OAFA), San Juan 5400, Argentina.
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- Erica Hammerstein
- Department of Astronomy, University of Maryland, College Park, MD 20742-4111, USA.
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- Alexander J. van der Horst
- Department of Physics, The George Washington University, 725 21st Street NW, Washington, DC 20052, USA.
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- Mansi M. Kasliwal
- Division of Physics, Mathematics and Astronomy, California Institute of Technology, Pasadena, CA 91125, USA.
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- Chryssa Kouveliotou
- Istituto Nazionale di Ricerca Metrologica, I-10135 Torino, Italy.
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- Alexander S. Kutyrev
- Department of Astronomy, University of Maryland, College Park, MD 20742-4111, USA.
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- William H. Lee
- Instituto de Astronomía, Universidad Nacional Autónoma de México, 04510 México, CDMX, Mexico.
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- Gokul P. Srinivasaragavan
- Department of Astronomy, University of Maryland, College Park, MD 20742-4111, USA.
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- Vladislav Topolev
- Sternberg Astronomical Institute, Lomonosov Moscow State University, Universitetsky pr. 13, 119234 Moscow, Russia.
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- Alan M. Watson
- Sternberg Astronomical Institute, Lomonosov Moscow State University, Universitetsky pr. 13, 119234 Moscow, Russia.
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- Yuhan Yang
- Department of Physics, University of Rome “Tor Vergata”, via della Ricerca Scientifica 1, I-00133 Rome, Italy.
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- Kirill Zhirkov
- Sternberg Astronomical Institute, Lomonosov Moscow State University, Universitetsky pr. 13, 119234 Moscow, Russia.
抄録
<jats:p> Long-duration gamma-ray bursts (GRBs) are powerful cosmic explosions, signaling the death of massive stars. Among them, GRB 221009A is by far the brightest burst ever observed. Because of its enormous energy ( <jats:italic>E</jats:italic> <jats:sub>iso</jats:sub> ≈ 10 <jats:sup>55</jats:sup> erg) and proximity ( <jats:italic>z</jats:italic> ≈ 0.15), GRB 221009A is an exceptionally rare event that pushes the limits of our theories. We present multiwavelength observations covering the first 3 months of its afterglow evolution. The x-ray brightness decays as a power law with slope ≈ <jats:italic>t</jats:italic> <jats:sup>−1.66</jats:sup> , which is not consistent with standard predictions for jetted emission. We attribute this behavior to a shallow energy profile of the relativistic jet. A similar trend is observed in other energetic GRBs, suggesting that the most extreme explosions may be powered by structured jets launched by a common central engine. </jats:p>
収録刊行物
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- Science Advances
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Science Advances 9 (23), eadi1405-, 2023-06-09
American Association for the Advancement of Science (AAAS)