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Catching TeV emission from GRB 221009A and alike with LHAASO, LACT and SWGO

Gamma-Ray Bursts (GRBs) are the most energetic electromagnetic explosions in the universe. Recently, the Large High Altitude Air Shower Observatory (LHAASO) reported the breakthrough observation of GRB 221009A with gamma-ray energies beyond…

高能天体物理现象 · 物理学 2026-03-10 Yunlei Huang , Sujie Lin , Soebur Razzaque , Lili Yang , Zijie Huang

The brightest GRB ever detected: GRB 221009A as a highly luminous event at z = 0.151

Context: The extreme luminosity of gamma-ray bursts (GRBs) makes them powerful beacons for studies of the distant Universe. The most luminous bursts are typically detected at moderate/high redshift, where the volume for seeing such rare…

高能天体物理现象 · 物理学 2025-09-10 D. B. Malesani , A. J. Levan , L. Izzo , A. de Ugarte Postigo , G. Ghirlanda , K. E. Heintz , D. A. Kann , G. P. Lamb , J. Palmerio , O. S. Salafia , R. Salvaterra , N. R. Tanvir , J. F. Agüí Fernández , S. Campana , A. A. Chrimes , P. D'Avanzo , V. D'Elia , M. Della Valle , M. De Pasquale , J. P. U. Fynbo , N. Gaspari , B. P. Gompertz , D. H. Hartmann , J. Hjorth , P. Jakobsson , E. Palazzi , E. Pian , G. Pugliese , M. E. Ravasio , A. Rossi , A. Saccardi , P. Schady , B. Schneider , J. Sollerman , R. L. C. Starling , C. C. Thöne , A. J. van der Horst , S. D. Vergani , D. Watson , K. Wiersema , D. Xu , T. Zafar

GRB 221009A: Observations with LST-1 of CTAO and Implications for Structured Jets in Long Gamma-Ray Bursts

GRB 221009A is the brightest gamma-ray burst (GRB) observed to date. Extensive observations of its afterglow emission across the electromagnetic spectrum were performed, providing the first strong evidence of a jet with a nontrivial angular…

高能天体物理现象 · 物理学 2026-03-11 LST Collaboration , K. Abe , S. Abe , A. Abhishek , F. Acero , A. Aguasca-Cabot , I. Agudo , C. Alispach , D. Ambrosino , F. Ambrosino , L. A. Antonelli , C. Aramo , A. Arbet-Engels , C. Arcaro , T. T. H. Arnesen , K. Asano , P. Aubert , A. Baktash , M. Balbo , A. Bamba , A. Baquero Larriva , U. Barres de Almeida , J. A. Barrio , L. Barrios Jiménez , I. Batkovic , J. Baxter , J. Becerra González , E. Bernardini , J. Bernete , A. Berti , I. Bezshyiko , C. Bigongiari , E. Bissaldi , O. Blanch , G. Bonnoli , P. Bordas , G. Borkowski , G. Brunelli , A. Bulgarelli , M. Bunse , I. Burelli , L. Burmistrov , M. Cardillo , S. Caroff , A. Carosi , R. Carraro , M. S. Carrasco , F. Cassol , D. Cerasole , G. Ceribella , A. Cerviño Cortínez , Y. Chai , K. Cheng , A. Chiavassa , M. Chikawa , G. Chon , L. Chytka , G. M. Cicciari , A. Cifuentes , J. L. Contreras , J. Cortina , H. Costantini , M. Dalchenko , P. Da Vela , F. Dazzi , A. De Angelis , M. de Bony de Lavergne , R. Del Burgo , C. Delgado , J. Delgado Mengual , M. Dellaiera , D. della Volpe , B. De Lotto , L. Del Peral , R. de Menezes , G. De Palma , C. Díaz , A. Di Piano , F. Di Pierro , R. Di Tria , L. Di Venere , R. M. Dominik , D. Dominis Prester , A. Donini , D. Dorner , M. Doro , L. Eisenberger , D. Elsässer , G. Emery , J. Escudero , V. Fallah Ramazani , F. Ferrarotto , A. Fiasson , L. Foffano , F. Frías García-Lago , S. Fröse , Y. Fukazawa , S. Gallozzi , R. Garcia López , S. Garcia Soto , C. Gasbarra , D. Gasparrini , D. Geyer , J. Giesbrecht Paiva , N. Giglietto , F. Giordano , N. Godinovic , T. Gradetzke , R. Grau , D. Green , J. Green , S. Gunji , P. Günther , J. Hackfeld , D. Hadasch , A. Hahn , M. Hashizume , T. Hassan , K. Hayashi , L. Heckmann , M. Heller , J. Herrera Llorente , K. Hirotani , D. Hoffmann , D. Horns , J. Houles , M. Hrabovsky , D. Hrupec , D. Hui , M. Iarlori , R. Imazawa , T. Inada , Y. Inome , S. Inoue , K. Ioka , M. Iori , T. Itokawa , A. Iuliano , J. Jahanvi , I. Jimenez Martinez , J. Jimenez Quiles , I. Jorge Rodrigo , J. Jurysek , M. Kagaya , O. Kalashev , V. Karas , H. Katagiri , D. Kerszberg , T. Kiyomot , Y. Kobayashi , K. Kohri , A. Kong , P. Kornecki , H. Kubo , J. Kushida , B. Lacave , M. Lainez , G. Lamanna , A. Lamastra , L. Lemoigne , M. Linhoff , S. Lombardi , F. Longo , R. López-Coto , M. López-Moya , A. López-Oramas , S. Loporchio , A. Lorini , J. Lozano Bahilo , F. Lucarelli , H. Luciani , P. L. Luque-Escamilla , P. Majumdar , M. Makariev , M. Mallamaci , D. Mandat , M. Manganaro , D. K. Maniadakis , G. Manicò , K. Mannheim , S. Marchesi , F. Marini , M. Mariotti , P. Marquez , G. Marsella , J. Martí , O. Martinez , G. Martínez , M. Martínez , A. Mas-Aguilar , M. Massa , G. Maurin , D. Mazin , J. Méndez-Gallego , S. Menon , E. Mestre Guillen , D. Miceli , T. Miener , J. M. Miranda , R. Mirzoyan , M. Mizote , T. Mizuno , M. Molero Gonzalez , E. Molina , T. Montaruli , A. Moralejo , D. Morcuende , A. Moreno Ramos , A. Morselli , V. Moya , H. Muraishi , S. Nagataki , T. Nakamori , A. Neronov , D. Nieto Castaño , M. Nievas Rosillo , L. Nikolic , K. Nishijima , K. Noda , D. Nosek , V. Novotny , S. Nozaki , M. Ohishi , Y. Ohtani , T. Oka , A. Okumura , R. Orito , L. Orsini , J. Otero-Santos , P. Ottanelli , M. Palatiello , G. Panebianco , D. Paneque , F. R. Pantaleo , R. Paoletti , J. M. Paredes , M. Pech , M. Pecimotika , M. Peresano , F. Pfeifle , E. Pietropaolo , M. Pihet , G. Pirola , C. Plard , F. Podobnik , M. Polo , E. Prandini , M. Prouza , S. Rainò , R. Rando , W. Rhode , M. Ribó , V. Rizi , G. Rodriguez Fernandez , M. D. Rodríguez Frías , P. Romano , A. Roy , A. Ruina , E. Ruiz-Velasco , T. Saito , S. Sakurai , D. A. Sanchez , H. Sano , T. Šarić , Y. Sato , F. G. Saturni , V. Savchenko , F. Schiavone , B. Schleicher , F. Schmuckermaier , J. L. Schubert , F. Schussler , T. Schweizer , M. Seglar Arroyo , T. Siegert , G. Silvestri , A. Simongini , J. Sitarek , V. Sliusar , A. Stamerra , J. Strišković , M. Strzys , Y. Suda , A. Sunny , H. Tajima , M. Takahashi , J. Takata , R. Takeishi , P. H. T. Tam , S. J. Tanaka , D. Tateishi , T. Tavernier , P. Temnikov , Y. Terada , K. Terauchi , T. Terzic , M. Teshima , M. Tluczykont , F. Tokanai , T. Tomura , D. F. Torres , F. Tramonti , P. Travnicek , G. Tripodo , A. Tutone , M. Vacula , J. van Scherpenberg , M. Vázquez Acosta , S. Ventura , S. Vercellone , G. Verna , I. Viale , A. Vigliano , C. F. Vigorito , E. Visentin , V. Vitale , V. Voitsekhovskyi , G. Voutsinas , I. Vovk , T. Vuillaume , R. Walter , L. Wan , M. Will , J. Wójtowicz , T. Yamamoto , R. Yamazaki , Y. Yao , P. K. H. Yeung , T. Yoshida , T. Yoshikoshi , W. Zhang

A structured jet explains the extreme GRB 221009A

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. Due to its enormous energy ($E_\textrm{iso}\!\approx$10$^{55}$…

高能天体物理现象 · 物理学 2023-02-17 B. O'Connor , E. Troja , G. Ryan , P. Beniamini , H. van Eerten , J. Granot , S. Dichiara , R. Ricci , V. Lipunov , J. H. Gillanders , R. Gill , M. Moss , S. Anand , I. Andreoni , R. L. Becerra , D. A. H. Buckley , N. R. Butler , S. B. Cenko , A. Chasovnikov , J. Durbak , C. Francile , E. Hammerstein , A. J. van der Horst , M. Kasliwal , C. Kouveliotou , A. S. Kutyrev , W. H. Lee , G. Srinivasaragavan , V. Topolev , A. M. Watson , Y. H. Yang , K. Zhirkov

A tera-electronvolt afterglow from a narrow jet in an extremely bright gamma-ray burst 221009A

Some gamma-ray bursts (GRBs) have an afterglow in the tera-electronvolt (TeV) band, but the early onset of this afterglow has not been observed. We report observations with the Large High Altitude Air Shower Observatory of the bright GRB…

高能天体物理现象 · 物理学 2023-07-11 LHAASO Collaboration

Gamma Ray Burst GRB 221009A: two distinct hints at once at new physics

The brightest ever observed gamma ray burst GRB 221009A at redshift $z = 0.151$ was detected on October 9, 2022. Its highest energy photons have been recorded by the LHAASO collaboration up to above $12 \, \rm TeV$, and one of the at ${\cal…

高能天体物理现象 · 物理学 2025-02-06 Giorgio Galanti , Marco Roncadelli , Giacomo Bonnoli , Lara Nava , Fabrizio Tavecchio

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…

高能天体物理现象 · 物理学 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

Insight-HXMT and GECAM-C observations of the brightest-of-all-time GRB 221009A

GRB 221009A is the brightest gamma-ray burst ever detected since the discovery of this kind of energetic explosions. However, an accurate measurement of the prompt emission properties of this burst is very challenging due to its exceptional…

高能天体物理现象 · 物理学 2023-03-06 Zheng-Hua An , S. Antier , Xing-Zi Bi , Qing-Cui Bu , Ce Cai , Xue-Lei Cao , Anna-Elisa Camisasca , Zhi Chang , Gang Chen , Li Chen , Tian-Xiang Chen , Wen Chen , Yi-Bao Chen , Yong Chen , Yu-Peng Chen , Michael W. Coughlin , Wei-Wei Cui , Zi-Gao Dai , T. Hussenot-Desenonges , Yan-Qi Du , Yuan-Yuan Du , Yun-Fei Du , Cheng-Cheng Fan , Filippo Frontera , He Gao , Min Gao , Ming-Yu Ge , Ke Gong , Yu-Dong Gu , Ju Guan , Dong-Ya Guo , Zhi-Wei Guo , Cristiano Guidorzi , Da-Wei Han , Jian-Jian He , Jun-Wang He , Dong-Jie Hou , Yue Huang , Jia Huo , Zhen Ji , Shu-Mei Jia , Wei-Chun Jiang , David Alexander Kann , A. Klotz , Ling-Da Kong , Lin Lan , An Li , Bing Li , Chao-Yang Li , Cheng-Kui Li , Gang Li , Mao-Shun Li , Ti-Pei Li , Wei Li , Xiao-Bo Li , Xin-Qiao Li , Xu-Fang Li , Yan-Guo Li , Zheng-Wei Li , Jing Liang , Xiao-Hua Liang , Jin-Yuan Liao , Lin Lin , Cong-Zhan Liu , He-Xin Liu , Hong-Wei Liu , Jia-Cong Liu , Xiao-Jing Liu , Ya-Qing Liu , Yu-Rong Liu , Fang-Jun Lu , Hong Lu , Xue-Feng Lu , Qi Luo , Tao Luo , Bin-Yuan Ma , Fu-Li Ma , Rui-Can Ma , Xiang Ma , Romain Maccary , Ji-Rong Mao , Bin Meng , Jian-Yin Nie , Mauro Orlandini , Ge Ou , Jing-Qiang Peng , Wen-Xi Peng , Rui Qiao , Jin-Lu Qu , Xiao-Qin Ren , Jing-Yan Shi , Qi Shi , Li-Ming Song , Xin-Ying Song , Ju Su , Gong-Xing Sun , Liang Sun , Xi-Lei Sun , Wen-Jun Tan , Ying Tan , Lian Tao , You-Li Tuo , Damien Turpin , Jin-Zhou Wang , Chen Wang , Chen-Wei Wang , Hong-Jun Wang , Hui Wang , Jin Wang , Ling-Jun Wang , Peng-Ju Wang , Ping Wang , Wen-Shuai Wang , Xiang-Yu Wang , Xi-Lu Wang , Yu-Sa Wang , Yue Wang , Xiang-Yang Wen , Bo-Bing Wu , Bai-Yang Wu , Hong Wu , Sheng-Hui Xiao , Shuo Xiao , Yun-Xiang Xiao , Sheng-Lun Xie , Shao-Lin Xiong , Sen-Lin Xiong , Dong Xu , He Xu , Yan-Jun Xu , Yan-Bing Xu , Ying-Chen Xu , Yu-Peng Xu , Wang-Chen Xue , Sheng Yang , Yan-Ji Yang , Zi-Xu Yang , Wen-Tao Ye , Qi-Bin Yi , Shu-Xu Yi , Qian-Qing Yin , Yuan You , Yun-Wei Yu , Wei Yu , Wen-Hui Yu , Ming Zeng , Bing Zhang , Bin-Bin Zhang , Da-Li Zhang , Fan Zhang , Hong-Mei Zhang , Juan Zhang , Liang Zhang , Peng Zhang , Peng Zhang , Shu Zhang , Shuang-Nan Zhang , Wan-Chang Zhang , Xiao-Feng Zhang , Xiao-Lu Zhang , Yan-Qiu Zhang , Yan-Ting Zhang , Yi-Fei Zhang , Yuan-Hang Zhang , Zhen Zhang , Guo-Ying Zhao , Hai-Sheng Zhao , Hong-Yu Zhao , Qing-Xia Zhao , Shu-Jie Zhao , Xiao-Yun Zhao , Xiao-Fan Zhao , Yi Zhao , Chao Zheng , Shi-Jie Zheng , Deng-Ke Zhou , Xing Zhou , Xiao-Cheng Zhu

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…

高能天体物理现象 · 物理学 2025-09-30 Arnau Aguasca-Cabot , Susumu Inoue , Monica Seglar-Arroyo , Kenta Terauchi , Pol Bordas , Marc Ribó

The origin of very-high-energy gamma-rays from GRB 221009A: implications for reverse shock proton synchrotron emission

Recently, GRB 221009A, known as the brightest of all time (BOAT), has been observed across an astounding range of $\sim 18$ orders of magnitude in energy, spanning from radio to VHE bands. Notably, the Large High Altitude Air Shower…

高能天体物理现象 · 物理学 2025-01-22 B. Theodore Zhang , Kohta Murase , Kunihito Ioka , Bing Zhang

Relation between the keV-MeV and TeV emission of GRB 221009A and its implications

Gamma-ray bursts (GRBs) are believed to launch relativistic jets, which generate prompt emission by internal processes, and produce long-lasting afterglows by driving external shocks into surrounding medium. However, how the jet powers the…

高能天体物理现象 · 物理学 2024-09-24 Yan-Qiu Zhang , Hao-Xiang Lin , Shao-Lin Xiong , Zhuo Li , Ming-Yu Ge , Chen-Wei Wang , Shu-Xu Yi , Zhen Zhang , Shuang-Nan Zhang , Li-Ming Song , Chao Zheng , Wang-Chen Xue , Jia-Cong Liu , Wen-Jun Tan , Yue Wang , Wen-Long Zhang

LST-1 follow-up of the exceptionally bright gamma-ray burst GRB 221009A

On 9 October 2022, the brightest gamma-ray burst (GRB) ever recorded (GRB 221009A) was detected. Its remarkably bright emission, partially due to its close distance to Earth ($z\sim0.15$), makes this GRB a unique event. The outstanding…

高能天体物理现象 · 物理学 2025-12-02 Arnau Aguasca-Cabot , Alessandro Carosi , Alice Donini , Susumu Inoue , Yuri Sato , Monica Seglar Arroyo , Kenta Terauchi , Pol Bordas , Marc Ribó

Effect of the brightest gamma-ray burst (GRB 221009A) on low energy gamma-ray counts at sea level

A gamma-ray burst, named GRB 221009A, occurred on 9 October 2022 and is the brightest ever observed GRB, whose frequency is now estimated as once in 10,000 years. This GRB was reported to be observed from many space missions, VLF receivers,…

高能天体物理现象 · 物理学 2024-03-18 Pranali Thakur , Gauri Datar , Geeta Vichare , Selvaraj Chelliah

IceCube search for neutrinos from GRB 221009A

GRB 221009A is the brightest Gamma Ray Burst (GRB) ever observed. The observed extremely high flux of high and very-high-energy photons provide a unique opportunity to probe the predicted neutrino counterpart to the electromagnetic…

高能天体物理现象 · 物理学 2024-07-23 Karlijn Kruiswijk , Bennett Brinson , Rachel Procter-Murphy , Jessie Thwaites , Nora Valtonen-Mattila

A self-consistent explanation of the MeV line in GRB 221009A unveils a dense circum-stellar medium

GRB~221009A has been the brightest gamma-ray burst (GRB) observed to date, and its afterglow has been characterised with unprecedented detail at TeV energies by LHAASO. Quite puzzlingly, it is also the most energetic GRB known. Among the…

高能天体物理现象 · 物理学 2026-01-21 O. S. Salafia , A. Celotti , E. Sobacchi , L. Nava , G. Oganesyan , G. Ghirlanda , S. Boula , M. E. Ravasio , G. Ghisellini

Evidence of Hadronic Emission from the brightest-of-all-time GRB 221009A

Acceleration of hadrons in relativistic shocks has been long expected and invoked to model GRB high-energy photon and neutrino emissions. However, so far there has been no direct observational evidence of hadronic emission from GRBs. The…

高能天体物理现象 · 物理学 2023-10-19 Kai Wang , Qing-Wen Tang , Yan-Qiu Zhang , Chao Zheng , Shao-Lin Xiong , Jia Ren , Bing Zhang

What absorbs the early TeV photons of GRB 221009A?

The tera-electronvolt (TeV) light curve of gamma-ray burst (GRB) 221009A shows an unprecedentedly rapid rise at the beginning epoch. This phenomenon could be due to the strong absorption of photons and electrons within the emitting region.…

高能天体物理现象 · 物理学 2023-12-08 Jun-Yi Shen , Yuan-Chuan Zou , A. M. Chen , Duan-Yuan Gao

Insight-HXMT observations of the extremely bright GRB 221009A

The Hard X-ray Modulation Telescope (\insight) detected GRB 221009A, the brightest gamma-ray burst observed to date, with all its three telescopes, i.e. High Energy telescope (HE, 20-250 keV), Medium Energy telescope (ME, 5-30 keV), and Low…

高能天体物理现象 · 物理学 2025-04-29 Wen-Long Zhang , Wang-Chen Xue , Cheng-Kui Li , Shao-Lin Xiong , Gang Li , Yong Chen , Wei-Wei Cui , Xiao-Bo Li , Cong-Zhan Liu , Ming-Yu Ge , Wen-Jun Tan , Jia-Cong Liu , Chen-Wei Wang , Chao Zheng , Yan-Qiu Zhang , Yue Wang , Zhen Zhang , Shu-Xu Yi , Shuo Xiao , Ce Cai , Shuang-Xi Yi , Li-Ming Song , Lian Tao , Shu Zhang , Shuang-Nan Zhang

Multi-TeV $\gamma$-ray candidates from GRB 221009A: a downturn in the intrinsic $\gamma$-ray spectrum, an echo of the prompt emission phase, and intergalactic electromagnetic cascades

The detection of $\gamma$-ray candidates up to the energy of $\approx$13 TeV from the exceptionally bright $\gamma$-ray burst GRB 221009A by the Large High Altitude Air-Shower Observatory (LHAASO) has raised considerable interest in the…

高能天体物理现象 · 物理学 2026-04-14 Timur A. Dzhatdoev , Jagdish C. Joshi , Abhijit Roy , Grigory I. Rubtsov , Anatoly A. Semenov

Deciphering the ~18 TeV photons from GRB 221009A

On 9 October, 2022, an extremely powerful gamma-ray burst, GRB 221009A, was detected by several instruments. Despite being obstructed by the Milky Way galaxy, its afterglow outburst outshone all other GRBs seen before. LHAASO detected…

高能天体物理现象 · 物理学 2023-01-18 Sarira Sahu , B. Medina-Carrillo , G. Sánchez-Colón , Subhash Rajpoot