Related papers: Will GRB 990123 Perform an Encore?

The Redshift of GRB 970508

GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It is the first GRB for which a distance scale has been determined: absorption and emission features in spectra of the optical afterglow place…

Astrophysics · Physics 2015-06-24 Daniel E. Reichart

Afterglow spectrum of a gamma-ray burst with the highest known redshift z=6.295

Gamma-ray bursts (GRBs) and their afterglows have been proposed as an excellent probe to study the evolution of cosmic star formation, the reionization of the intergalactic medium, and the metal enrichment history of the universe, since the…

Astrophysics · Physics 2007-05-23 N. Kawai , G. Kosugi , K. Aoki , T. Yamada , T. Totani , K. Ohta , M. Iye , T. Hattori , W. Aoki , H. Furusawa , K. Hurley , K. Kawabata , N. Kobayashi , Y. Komiyama , Y. Mizumoto , K. Nomoto , J. Noumaru , R. Ogasawara , R. Sato , K. Sekiguchi , Y. Shirasaki , M. Suzuki , T. Takata , T. Tamagawa , H. Terada , J. Watanabe , Y. Yatsu , A. Yoshida

Explaining the High Energy Spectral Component in GRB 941017

The gamma-ray burst (GRB) of October 17, 1994 (941017), showed a distinct high energy spectral component extending from $\lesssim$ a few MeV to $\gtrsim$ 200 MeV, in addition to the typical GRB emission which peaked at $\lesssim$ a few…

Astrophysics · Physics 2009-11-10 Jonathan Granot , Dafne Guetta

The redshift and afterglow of the extremely energetic gamma-ray burst GRB 080916C

The detection of GeV photons from gamma-ray bursts (GRBs) has important consequences for the interpretation and modelling of these most-energetic cosmological explosions. The full exploitation of the high-energy measurements relies,…

High Energy Astrophysical Phenomena · Physics 2009-11-13 J. Greiner , C. Clemens , T. Kruehler , A. v. Kienlin , A. Rau , R. Sari , D. B. Fox , N. Kawai , P. Afonso , M. Ajello , E. Berger , S. B. Cenko , A. Cucchiara , R. Filgas , S. Klose , A. Kuepue Yoldas , G. G. Lichti , S. Loew , S. McBreen , T. Nagayama , A. Rossi , S. Sato , G. Szokoly , A. Yoldas , X. -L. Zhang

The power of the rings: the GRB 221009A soft X-ray emission from its dust-scattering halo

GRB 221009A is the brightest gamma-ray burst (GRB) ever detected and occurred at low Galactic latitude. Owing to this exceptional combination, its prompt X-ray emission could be detected for weeks in the form of expanding X-ray rings…

High Energy Astrophysical Phenomena · Physics 2023-04-18 Andrea Tiengo , Fabio Pintore , Beatrice Vaia , Simone Filippi , Andrea Sacchi , Paolo Esposito , Michela Rigoselli , Sandro Mereghetti , Ruben Salvaterra , Barbara Siljeg , Andrea Bracco , Zeljka Bosnjak , Vibor Jelic , Sergio Campana

Cosmological Gamma-Ray Bursts and Evolution of Galaxies

Evolution of the rate density of cosmological gamma-ray bursts (GRBs) is calculated and compared to the BATSE brightness distribution in the context of binary neutron-star mergers as the source of GRBs, taking account of the realistic star…

Astrophysics · Physics 2010-04-06 Tomonori Totani

Swift observations of GRB050904: the most distant cosmic explosion ever observed

Swift discovered the high redshift (z=6.29) GRB050904 with the Burst Alert Telescope (BAT) and began observing with its narrow field instruments 161 s after the burst onset. This gamma-ray burst is the most distant cosmic explosion ever…

Astrophysics · Physics 2010-03-19 G. Cusumano , V. Mangano , G. Chincarini , A. Panaitescu , D. N. Burrows , V. La Parola , T. Sakamoto , S. Campana , T. Mineo , G. Tagliaferri , L. Angelini , S. D. Barthelemy , A. P. Beardmore , P. T. Boyd , L. Cominsky , C. Gronwall , E. E. Fenimore , N. Gehrels , P. Giommi , M. Goad , K. Hurley , S. Immler , J. A. Kennea , K. O. Mason , F. Marshall , P. Meszaros , J. A. Nousek , J. P. Osborne , D. M. Palmer , P. W. A. Roming , A. Wells , N. E. White , B. Zhang

Observations of GRBs at High Redshift

The extreme luminosity of gamma-ray bursts (GRBs) and their afterglows means they are detectable, in principle, to very high redshifts. Although the redshift distribution of GRBs is difficult to determine, due to incompleteness of present…

Astrophysics · Physics 2009-11-13 N. R. Tanvir , P. Jakobsson

GRB 071003: Broadband Follow-up Observations of a Very Bright Gamma-Ray Burst in a Galactic Halo

The optical afterglow of long-duration GRB 071003 is among the brightest yet to be detected from any GRB, with R ~ 12 mag in KAIT observations starting 42 s after the GRB trigger, including filtered detections during prompt emission.…

Astrophysics · Physics 2009-11-13 D. A. Perley , W. Li , R. Chornock , J. X. Prochaska , N. R. Butler , P. Chandra , L. K. Pollack , J. S. Bloom , A. V. Filippenko , H. Swan , F. Yuan , C. Akerlof , M. W. Auger , S. B. Cenko , H. -W. Chen , C. D. Fassnacht , D. Fox , D. Frail , E. M. Johansson , D. Le Mignant , T. McKay , M. Modjaz , W. Rujopakarn , R. Russell , M. A. Skinner , G. H. Smith , I. Smith , M. A. van Dam , S. Yost

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

Gravitational Lensing Limits on the Average Redshift of Gamma-Ray Bursts

The lack of bright host galaxies in several recently examined gamma-ray burst (GRB) error boxes suggests that the redshifts of cosmological GRBs may be significantly higher than previously believed. On the other hand, the non-detection of…

Astrophysics · Physics 2009-10-30 Daniel E. Holz , M. Coleman Miller , Jean M. Quashnock

Resolving Gamma-Ray Burst 000301C with a Gravitational Microlens

The afterglow of the Gamma-Ray Burst (GRB) 000301C exhibited achromatic, short time-scale variability that is difficult to reconcile with the standard relativistic shock model. We interpret the observed light curves as a microlensing event…

Astrophysics · Physics 2009-10-31 P. M. Garnavich , A. Loeb , K. Z. Stanek

HST/STIS Observations of the Optical Counterpart to GRB 970228

We report on observations of the fading optical counterpart of the gamma-ray burst GRB 970228, made on 4~September~1997 using the STIS CCD on the Hubble Space Telescope. The unresolved counterpart is detected at V=28 +/- 0.25, consistent…

Astrophysics · Physics 2009-10-30 Andrew S. Fruchter , Elena Pian , Stephen E. Thorsett , Rosa Gonzalez , Kailash C. Sahu , Max Mutchler , Filippo Frontera , Titus Galama , Paul Groot , Richard Hook , Chryssa Kouveliotou , Mario Livio , Duccio Macchetto , Jan van Paradijs , Eliana Palazzi , Larry Petro , Marco Tavani

Is Gamma-ray Burst 221009A Really a Once-in-10,000 Year Event?

Gamma-ray bursts (GRBs) brighter than the GRB 221009A, the brightest yet observed, have previously been estimated to occur at a rate of 1 per 10,000 years, based on the extrapolation of the distribution of fluences of the Long GRB…

High Energy Astrophysical Phenomena · Physics 2024-07-24 Justin Finke , Soebur Razzaque

A Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy

We present Hubble WFC3/IR slitless grism spectra of a remarkably bright $z\gtrsim10$ galaxy candidate, GN-z11, identified initially from CANDELS/GOODS-N imaging data. A significant spectroscopic continuum break is detected at…

Astrophysics of Galaxies · Physics 2016-03-18 P. A. Oesch , G. Brammer , P. G. van Dokkum , G. D. Illingworth , R. J. Bouwens , I. Labbe , M. Franx , I. Momcheva , M. L. N. Ashby , G. G. Fazio , V. Gonzalez , B. Holden , D. Magee , R. E. Skelton , R. Smit , L. R. Spitler , M. Trenti , S. P. Willner

Beaming in Gamma-Ray Bursts: Evidence for a Standard Energy Reservoir

Gamma-ray bursts (GRBs) are the most brilliant objects in the Universe but efforts to estimate the total energy released in the explosion -- a crucial physical quantity -- have been stymied by their unknown geometry: spheres or cones. We…

Astrophysics · Physics 2009-11-06 D. A. Frail , S. R. Kulkarni , R. Sari , S. G. Djorgovski , J. S. Bloom , T. J. Galama , D. E. Reichart , E. Berger , F. A. Harrison , P. A. Price , S. A. Yost , A. Diercks , R. W. Goodrich , F. Chaffee

Testing Einstein's special relativity with Fermi's short hard gamma-ray burst GRB090510

Gamma-ray bursts (GRBs) are the most powerful explosions in the universe and probe physics under extreme conditions. GRBs divide into two classes, of short and long duration, thought to originate from different types of progenitor systems.…

High Energy Astrophysical Phenomena · Physics 2014-11-20 LAT Collaboration

BeppoSAX measurements of the bright gamma-ray burst 010222

We analyze the BeppoSAX measurements of the prompt and afterglow emission of the gamma-ray burst GRB010222. Among 45 GRBs detected with the Wide Field Cameras on BeppoSAX, the 40-700 keV fluence of (9.3+/-0.3)E-5 erg cm-2 is only surpassed…

Astrophysics · Physics 2009-11-06 J. J. M. in 't Zand , L. Kuiper , L. Amati , L. A. Antonelli , R. C. Butler , E. Costa , M. Feroci , F. Frontera , G. Gandolfi , C. Guidorzi , J. Heise , R. G. Kaptein , E. Kuulkers , L. Nicastro , L. Piro , P. Soffitta , M. Tavani

JWST Spectroscopy of GRB 250702B: An Extremely Rare and Exceptionally Energetic Burst in a Dusty, Massive Galaxy at $z=1.036$

We present follow-up observations of the day-long, repeating GRB 250702B with the Near Infrared Spectrograph (NIRSpec) on board the James Webb Space Telescope (JWST). Through the identification of narrow hydrogen emission lines at a…

High Energy Astrophysical Phenomena · Physics 2025-09-30 Benjamin P. Gompertz , Andrew J. Levan , Tanmoy Laskar , Benjamin Schneider , Ashley A. Chrimes , Antonio Martin-Carrillo , Albert Sneppen , David ONeill , Daniele B. Malesani , Peter G. Jonker , Eric Burns , Gregory Corcoran , Laura Cotter , Antonio de Ugarte Postigo , Dimple , Rob A. J. Eyles-Ferris , L. Izzo , Pall Jakobsson , Gavin P. Lamb , Jesse T. Palmerio , Giovanna Pugliese , Maria Edvige Ravasio , Andrea Saccardi , Ruben Salvaterra , Nikhil Sarin , Steve Schulze , Nial Tanvir , Makenzie E. Wortley

Probing the very high redshift Universe with Gamma-ray Bursts: prospects for observations with future X-ray instruments

Gamma-Ray Bursts (GRBs) are the most violent explosions in the Universe. Long duration GRBs are associated with the collapse of massive stars, rivaling their host galaxies in luminosity. The discovery of the most distant spectroscopically…

High Energy Astrophysical Phenomena · Physics 2015-05-19 S. Campana , R. Salvaterra , G. Tagliaferri , C. Kouveliotou , J. Grindlay