A tera-electron volt afterglow from a narrow jet in an extremely bright gamma-ray burst
Issued Date
2023-06-30
Resource Type
eISSN
10959203
Scopus ID
2-s2.0-85164234684
Pubmed ID
37289911
Journal Title
Science (New York, N.Y.)
Volume
380
Issue
6652
Start Page
1390
End Page
1396
Rights Holder(s)
SCOPUS
Bibliographic Citation
Science (New York, N.Y.) Vol.380 No.6652 (2023) , 1390-1396
Suggested Citation
Cao Z. A tera-electron volt afterglow from a narrow jet in an extremely bright gamma-ray burst. Science (New York, N.Y.) Vol.380 No.6652 (2023) , 1390-1396. 1396. doi:10.1126/science.adg9328 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/88061
Title
A tera-electron volt afterglow from a narrow jet in an extremely bright gamma-ray burst
Author(s)
Author's Affiliation
State Key Laboratory of Particle Detection & Electronics
Yunnan Observatories
Nanjing University
Shanghai Astronomical Observatory Chinese Academy of Sciences
Institute for Nuclear Research of the Russian Academy of Sciences
Shandong University
Yunnan University
Institute of High Energy Physics Chinese Academy of Science
University of Chinese Academy of Sciences
Guangzhou University
Tsinghua University
Sun Yat-Sen University
University of Science and Technology of China
Zhengzhou University
Institiúid Ard-Lénn Bhaile Átha Cliath
Sichuan University
National Astronomical Observatories Chinese Academy of Sciences
Max-Planck-Institut für Kernphysik
Southwest Jiaotong University
Purple Mountain Observatory Chinese Academy of Sciences
Université de Genève
Hebei Normal University
Tibet University
Moscow Institute of Physics and Technology
TIANFU Cosmic Ray Research Center
Yunnan Observatories
Nanjing University
Shanghai Astronomical Observatory Chinese Academy of Sciences
Institute for Nuclear Research of the Russian Academy of Sciences
Shandong University
Yunnan University
Institute of High Energy Physics Chinese Academy of Science
University of Chinese Academy of Sciences
Guangzhou University
Tsinghua University
Sun Yat-Sen University
University of Science and Technology of China
Zhengzhou University
Institiúid Ard-Lénn Bhaile Átha Cliath
Sichuan University
National Astronomical Observatories Chinese Academy of Sciences
Max-Planck-Institut für Kernphysik
Southwest Jiaotong University
Purple Mountain Observatory Chinese Academy of Sciences
Université de Genève
Hebei Normal University
Tibet University
Moscow Institute of Physics and Technology
TIANFU Cosmic Ray Research Center
Other Contributor(s)
Abstract
Some gamma-ray bursts (GRBs) have a tera-electron volt (TeV) afterglow, but the early onset of this has not been observed. We report observations with the Large High Altitude Air Shower Observatory (LHAASO) of the bright GRB 221009A, which serendipitously occurred within the instrument's field of view. More than 64,000 photons >0.2 TeV were detected within the first 3000 seconds. The TeV flux began several minutes after the GRB trigger and then rose to a peak ~10 seconds later. This was followed by a decay phase, which became more rapid ~650 seconds after the peak. We interpret the emission using a model of a relativistic jet with half-opening angle of ~0.8°. This is consistent with the core of a structured jet and could explain the high isotropic energy of this GRB.