Related papers: Major Change in Understanding of GRBs at TeV

Modeling gamma-ray burst observations by Fermi and MAGIC including attenuation due to diffuse background light

Gamma rays from extragalactic sources are attenuated by pair-production interactions with diffuse photons of the extragalactic background light (EBL). Gamma-ray bursts (GRBs) are a source of high-redshift photons above 10 GeV, and could be…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Rudy C. Gilmore , Francisco Prada , Joel R. Primack

Synchrotron Self-Compton Model of TeV Afterglows in Gamma-Ray Bursts

The detection of a very-high-energy TeV spectral component in the afterglow emission of gamma-ray bursts (GRBs) has opened a new probe into the energetics of ultra-relativistic blast waves and the nature of the circumburst environment in…

High Energy Astrophysical Phenomena · Physics 2025-12-01 Edilberto Aguilar-Ruiz , Ramandeep Gill , Paz Beniamini , Jonathan Granot

Very High Energy Gamma-ray Afterglow Emission of Nearby Gamma-ray Bursts

The synchrotron self-Compton (SSC) emission from Gamma-ray Burst (GRB) forward shock can extend to the very-high-energy (VHE; $E_\gamma > $100 GeV) range. Such high energy photons are rare and are attenuated by the cosmic infrared…

High Energy Astrophysical Phenomena · Physics 2015-05-13 R. R. Xue , P. H. Tam , S. J. Wagner , B. Behera , Y. Z. Fan , D. M. Wei

Search for gamma-ray bursts above 20 TeV with the HEGRA AIROBICC Cherenkov array

A search for gamma-ray bursts (GRBs) above 20 TeV within the field of view (1 sr) of the HEGRA AIROBICC Cherenkov array (29N, 18W, 2200 m a.s.l.) has been performed using data taken between March 1992 and March 1993. The search is based on…

Astrophysics · Physics 2007-05-23 HEGRA collaboration , L. Padilla , B. Funk , H. Krawczynski , J. L. Contreras , A. Moralejo , F. Aharonian , A. G. Akhperjanian , J. A. Barrio , J. G. Beteta , J. Cortina , T. Deckers , V. Fonseca , H. -J. Gebauer , J. C. Gonzalez , G. Heinzelmann , D. Horns , H. Kornmayer , A. Lindner , E. Lorenz , N. Magnussen , H. Meyer , R. Mirzoyan , D. Petry , R. Plaga , J. Prahl , C. Prosch , G. Rauterberg , W. Rhode , A. Roehring , V. Sahakian , M. Samorski , D. Schmele , W. Stamm , B. Wiebel-Sooth , M. Willmer , W. Wittek

The afterglow, the redshift, and the extreme energetics of the gamma-ray burst 990123

Afterglow, or long-lived emission, has now been detected from about a dozen well-positioned gamma-ray bursts. Distance determinations made by measuring optical emission lines from the host galaxy, or absorption lines in the afterglow…

Astrophysics · Physics 2008-11-26 S. R. Kulkarni , S. G. Djorgovski , S. C. Odewahn , J. S. Bloom , R. R. Gal , C. D. Koresko , F. A. Harrison , L. M. Lubin , L. Armus , R. Sari , G. D. Illingworth , D. D. Kelson , D. K Magee , P. G. van Dokkum , D. A. Frail , J. S. Mulchaey , M. A. Malkan , I. S. McLean , H. I. Teplitz , D. Koerner , D. Kirkpatrick , N. Kobayashi , I. A. Yadigaroglu , J. Halpern , T. Piran , R. Goodrich , F. Chaffee , M. Feroci , E. Costa

The Physics of Gamma-Ray Bursts

Gamma-Ray Bursts (GRBs), short and intense pulses of low energy gamma-rays, have fascinated astronomers and astrophysicists since their unexpected discovery in the late sixties. During the last decade, several space missions: BATSE (Burst…

Astrophysics · Physics 2008-11-26 Tsvi Piran

Very high energy follow-up observations of GRBs detected by Fermi and Swift

In many theoretical models of gamma-ray bursts (GRBs) and their afterglows, the emission of photons above 100 GeV is predicted. The Large Area Telescope (LAT) on-board the Fermi Gamma-ray Space Telescope has detected delayed, high-energy…

High Energy Astrophysical Phenomena · Physics 2019-08-13 Taylor Aune

Very high energy gamma-ray emission beyond 10 TeV from GRB 221009A

The highest energy gamma-rays from gamma-ray bursts (GRBs) have important implications for their radiation mechanism. Here we report for the first time the detection of gamma-rays up to 13 TeV from the brightest GRB 221009A by the Large…

High Energy Astrophysical Phenomena · Physics 2023-11-27 Zhen Cao , F. Aharonian , Q. An , A. Axikegu , Y. X. Bai , Y. W. Bao , D. Bastieri , X. J. Bi , Y. J. Bi , J. T. Cai , Q. Cao , W. Y. Cao , Zhe Cao , J. Chang , J. F. Chang , A. M. Chen , E. S. Chen , Liang Chen , Lin Chen , Long Chen , M. J. Chen , M. L. Chen , Q. H. Chen , S. H. Chen , S. Z. Chen , T. L. Chen , Y. Chen , N. Cheng , Y. D. Cheng , M. Y. Cui , S. W. Cui , X. H. Cui , Y. D. Cui , B. Z. Dai , H. L. Dai , Z. G. Dai , Danzengluobu , D. della Volpe , X. Q. Dong , K. K. Duan , J. H. Fan , Y. Z. Fan , J. Fang , K. Fang , C. F. Feng , L. Feng , S. H. Feng , X. T. Feng , Y. L. Feng , S. Gabici , B. Gao , C. D. Gao , L. Q. Gao , Q. Gao , W. Gao , W. K. Gao , M. M. Ge , L. S. Geng , G. Giacinti , G. H. Gong , Q. B. Gou , M. H. Gu , F. L. Guo , X. L. Guo , Y. Q. Guo , Y. Y. Guo , Y. A. Han , H. H. He , H. N. He , J. Y. He , X. B. He , Y. He , M. Heller , Y. K. Hor , B. W. Hou , C. Hou , X. Hou , H. B. Hu , Q. Hu , S. C. Hu , D. H. Huang , T. Q. Huang , W. J. Huang , X. T. Huang , X. Y. Huang , Y. Huang , Z. C. Huang , X. L. Ji , H. Y. Jia , K. Jia , K. Jiang , X. W. Jiang , Z. J. Jiang , M. Jin , M. M. Kang , T. Ke , D. Kuleshov , K. Kurinov , B. B. Li , Cheng Li , Cong Li , D. Li , F. Li , H. B. Li , H. C. Li , H. Y. Li , J. Li , Jian Li , Jie Li , K. Li , W. L. Li , W. L. Li , X. R. Li , Xin Li , Y. Z. Li , Zhe Li , Zhuo Li , E. W. Liang , Y. F. Liang , S. J. Lin , B. Liu , C. Liu , D. Liu , H. Liu , H. D. Liu , J. Liu , J. L. Liu , J. Y. Liu , M. Y. Liu , R. Y. Liu , S. M. Liu , W. Liu , Y. Liu , Y. N. Liu , R. Lu , Q. Luo , H. K. Lv , B. Q. Ma , L. L. Ma , X. H. Ma , J. R. Mao , Z. Min , W. Mitthumsiri , H. J. Mu , Y. C. Nan , A. Neronov , Z. W. Ou , B. Y. Pang , P. Pattarakijwanich , Z. Y. Pei , M. Y. Qi , Y. Q. Qi , B. Q. Qiao , J. J. Qin , D. Ruffolo , A. Sáiz , D. Semikoz , C. Y. Shao , L. Shao , O. Shchegolev , X. D. Sheng , F. W. Shu , H. C. Song , Yu. V. Stenkin , V. Stepanov , Y. Su , Q. N. Sun , X. N. Sun , Z. B. Sun , P. H. T. Tam , Q. W. Tang , Z. B. Tang , W. W. Tian , C. Wang , C. B. Wang , G. W. Wang , H. G. Wang , H. H. Wang , J. C. Wang , K. Wang , L. P. Wang , L. Y. Wang , P. H. Wang , R. Wang , W. Wang , X. G. Wang , X. Y. Wang , Y. Wang , Y. D. Wang , Y. J. Wang , Z. H. Wang , Z. X. Wang , Zhen Wang , Zheng Wang , D. M. Wei , J. J. Wei , Y. J. Wei , T. Wen , C. Y. Wu , H. R. Wu , S. Wu , X. F. Wu , Y. S. Wu , S. Q. Xi , J. Xia , J. J. Xia , G. M. Xiang , D. X. Xiao , G. Xiao , G. G. Xin , Y. L. Xin , Y. Xing , Z. Xiong , D. L. Xu , R. F. Xu , R. X. Xu , W. L. Xu , L. Xue , D. H. Yan , J. Z. Yan , T. Yan , C. W. Yang , F. Yang , F. F. Yang , H. W. Yang , J. Y. Yang , L. L. Yang , M. J. Yang , R. Z. Yang , S. B. Yang , Y. H. Yao , Z. G. Yao , Y. M. Ye , L. Q. Yin , N. Yin , X. H. You , Z. Y. You , Y. H. Yu , Q. Yuan , H. Yue , H. D. Zeng , T. X. Zeng , W. Zeng , M. Zha , B. B. Zhang , F. Zhang , H. M. Zhang , H. Y. Zhang , J. L. Zhang , L. X. Zhang , Li Zhang , P. F. Zhang , P. P. Zhang , R. Zhang , S. B. Zhang , S. R. Zhang , S. S. Zhang , X. Zhang , X. P. Zhang , Y. F. Zhang , Yi Zhang , Yong Zhang , B. Zhao , J. Zhao , L. Zhao , L. Z. Zhao , S. P. Zhao , F. Zheng , B. Zhou , H. Zhou , J. N. Zhou , M. Zhou , P. Zhou , R. Zhou , X. X. Zhou , C. G. Zhu , F. R. Zhu , H. Zhu , K. J. Zhu , X. Zuo

Sub-GeV flashes in $\gamma-$ray burst afterglows as probes of underlying bright UV flares

Bright optical and X-ray flares have been observed in many Gamma-ray Burst (GRB) afterglows. These flares have been attributed to late activity of the central engine. In most cases the peak energy is not known and it is possible and even…

Astrophysics · Physics 2007-05-23 Yizhong Fan , Tsvi Piran

Search of extended or delayed TeV emission from GRBs with HAWC

Gamma-ray bursts (GRBs) are among the most luminous sources in the universe and the nature of their emission up to very high energy is one of the most important open issue connected with the study of these peculiar events. The High Altitude…

High Energy Astrophysical Phenomena · Physics 2019-08-14 Simone Dichiara , Maria Magdalena González , Nissim Fraija , Ibrahim Torres , Ana Delia Becerril , Ruben Alfaro , Dirk Lennarz

Gravitational-wave follow-up with CTA after the detection of GRBs in the TeV energy domain

The recent discovery of TeV emission from gamma-ray bursts (GRBs) by the MAGIC and H.E.S.S. Cherenkov telescopes confirmed that emission from these transients can extend to very high energies. The TeV energy domain reaches the most…

High Energy Astrophysical Phenomena · Physics 2019-10-16 Imre Bartos , K. Rainer Corley , Nihar Gupte , Neil Ash , Zsuzsa. Márka , Szabolcs Márka

Gamma-Ray Bursts Above 1 GeV

One of the principal results obtained by the Compton Gamma Ray Observatory relating to the study of gamma-ray bursts was the detection by the EGRET instrument of energetic ($>$100 MeV) photons from a handful of bright bursts. The most…

Astrophysics · Physics 2007-05-23 Matthew G. Baring

Evidence for GeV Gamma-Ray Emission from Intense GRB 240529A During the Afterglow's Shallow Decay Phase

X-ray light curves of gamma-ray burst (GRB) afterglows exhibit various features, with the shallow decay phase being particularly puzzling. While some studies report absence of the X-ray shallow decay for hyper-energetic GRBs, recently…

High Energy Astrophysical Phenomena · Physics 2025-04-16 Kenta Terauchi , Tomohiko Oka , Katsuaki Asano

LST-1 observations of GRB 221009A: Insights into its late-time VHE afterglow

Gamma-ray bursts (GRBs) originate from explosions at cosmological distances, generating collimated jets. GRB 221009A, exploded on 9 October 2022, has been established as the brightest GRB to date. Its bright and long emission was…

High Energy Astrophysical Phenomena · Physics 2025-09-30 Arnau Aguasca-Cabot , Susumu Inoue , Monica Seglar-Arroyo , Kenta Terauchi , Pol Bordas , Marc Ribó

Prospects for GeV-TeV detection of short gamma-ray bursts with extended emission

We discuss the GeV to TeV photon emission of gamma-ray bursts (GRBs) within the refreshed shock and the continuous injection scenarios, motivated by the observation of extended emission in a substantial fraction of short GRBs. In the first…

High Energy Astrophysical Phenomena · Physics 2015-06-18 P. Veres , P. Mészáros

Extremely luminous optical afterglow of an energetic gamma-ray burst GRB 230204B

Robotic telescope networks play an important role in capturing early and bright optical afterglows, providing critical insights into the energetics and emission mechanisms of GRBs. In this study, we analyze GRB 230204B, an exceptionally…

High Energy Astrophysical Phenomena · Physics 2025-12-03 Rahul Gupta , Judith Racusin , Vladimir Lipunov , Y. -D. Hu , Ashna Gulati , Alberto J. Castro-Tirado , Tara Murphy , Motoko Serino , Kirill Zhirkov , S. Shilling , Samantha R. Oates , James K. Leung , T. Parsotan , Amit K. Ror , Shashi B. Pandey , S. Iyyani , V. Sharma , A. Aryan , Jin-Ming Bai , Pavel Balanutsa , David Buckley , María D. Caballero-García , I. M. Carrasco-García , A. Castellón , Sebastián Castillo , Chen-Zhou Cui , Yu-Feng Fan , Emilio Fernández-García , Guillermo García-Segura , Maria Gritsevich , Sergiy Guziy , David Hiriart , William H. Lee , Soomin Jeong , Carlos Jesus Pérez del Pulgar , Ignacio Olivares , I. H. Park , Ignacio Pérez-García , S. Razzaque , Rubén Sánchez-Ramírez , Nataly Tyurina , Vladislav Topolev , Chuan-Jun Wang , Si-Yu Wu , Yu-Xin Xin , Ding-Rong Xiong , Xiao-Hong Zhao , Jirong Mao , Bao-Li Lun , Ye Kai

Peculiar prompt emission and afterglow in H.E.S.S. detected GRB 190829A

We present the results of a detailed investigation of the prompt and afterglow emission in the HESS detected GRB 190829A. Swift and Fermi observations of the prompt phase of this GRB reveal two isolated sub-bursts or episodes, separated by…

High Energy Astrophysical Phenomena · Physics 2020-07-29 Vikas Chand , Ankush Banerjee , Rahul Gupta , Dimple , Partha Sarathi Pal , Jagdish C. Joshi , Bin-Bin Zhang , R. Basak , P. H. T. Tam , Vidushi Sharma , S. B. Pandey , Amit Kumar , Yi-Si Yang

Probing Particle Acceleration through Broadband Early Afterglow Emission of MAGIC Gamma-Ray Burst GRB 190114C

Major Atmospheric Gamma Imaging Cherenkov Telescopes (MAGIC) detected the gamma-ray afterglow of GRB 190114C, which can constrain microscopic parameters of the shock-heated plasma emitting non-thermal emission. Focusing on the early…

High Energy Astrophysical Phenomena · Physics 2020-12-22 Katsuaki Asano , Kohta Murase , Kenji Toma

The Expected Rate of Gamma-Ray Burst Afterglows In Supernova Searches

We predict the rate at which Gamma-Ray Burst (GRB) afterglows should be detected in supernova searches as a function of limiting flux. Although GRB afterglows are rarer than supernovae, they are detectable at greater distances because of…

Astrophysics · Physics 2009-10-30 Eric Woods , Abraham Loeb

Synchrotron self-Compton as a likely mechanism of photons beyond the synchrotron limit in GRB 190114C

GRB 190114C, a long and luminous burst, was detected by several satellites and ground-based telescopes from radio wavelengths to GeV gamma-rays. In the GeV gamma-rays, the Fermi LAT detected 48 photons above 1 GeV during the first hundred…

High Energy Astrophysical Phenomena · Physics 2019-10-09 N. Fraija , R. Barniol Duran , S. Dichiara , P. Beniamini