Related papers: GRB160203A: an exploration of lumpy space

Variability of GRB Afterglows Due to Interstellar Turbulence

Gamma-Ray Burst (GRB) afterglows are commonly interpreted as synchrotron emission from a relativistic blast wave produced by a point explosion in an ambient medium, plausibly the interstellar medium of galaxies. We calculate the amplitude…

Astrophysics · Physics 2009-10-31 Xiaohu Wang , Abraham Loeb

The origin of the plateau and late rebrightening in the afterglow of GRB 120326A

GRB 120326A is an unusual gamma-ray burst (GRB) which has a quite long plateau and a very late rebrightening both in X-ray and optical bands. The similar behavior of the optical and X-ray light curves suggests that they maybe have a common…

High Energy Astrophysical Phenomena · Physics 2015-06-18 S. J. Hou , J. J. Geng , K. Wang , X. F. Wu , Y. F. Huang , Z. G. Dai , J. F. Lu

A new population of ultra-long duration gamma-ray bursts

We present comprehensive multiwavelength observations of three gamma-ray bursts (GRBs) with durations of several thousand seconds. We demonstrate that these events are extragalactic transients; in particular we resolve the long-standing…

High Energy Astrophysical Phenomena · Physics 2014-02-04 A. J. Levan , N. R. Tanvir , R. L. C. Starling , K. Wiersema , K. L. Page , D. A. Perley , S. Schulze , G. A. Wynn , R. Chornock , J. Hjorth , S. B. Cenko , A. S. Fruchter , P. T. O'Brien , G. C. Brown , R. L. Tunnicliffe , D. Malesani , P. Jakobsson , D. Watson , E. Berger , D. Bersier , B. E. Cobb , S. Covino , A. Cucchiara , A. de Ugarte Postigo , D. B. Fox , A. Gal-Yam , P. Goldoni , J. Gorosabel , L. Kaper , T. Kruehler , R. Karjalainen , J. P. Osborne , E. Pian , R. Sanchez-Ramirez , B. Schmidt , I. Skillen , G. Tagliaferri , C. Thone , O. Vaduvescu , R. A. M. J. Wijers , B. A. Zauderer

The puzzling case of GRB 990123: multiwavelength afterglow study

We report on the BeppoSAX data analysis of the afterglow of Gamma-Ray Burst (GRB) 990123, one of the brightest GRBs detected by BeppoSAX. Mainly due to its exceptional brightness, this is the only source for which the Wide Field Cameras…

Astrophysics · Physics 2009-11-11 E. Maiorano , N. Masetti , E. Palazzi , F. Frontera , P. Grandi , E. Pian , L. Amati , L. Nicastro , P. Soffitta , C. Guidorzi , R. Landi , E. Montanari , M. Orlandini , A. Corsi , L. Piro , L. A. Antonelli , E. Costa , M. Feroci , J. Heise , E. Kuulkers , J. J. M. in't Zand

GRB 081029: A Gamma-Ray Burst with a Multi-Component Afterglow

We present an analysis of the unusual optical light curve of the gamma-ray burst GRB 081029, a long-soft burst with a redshift of z = 3.8479. We combine X-ray and optical observations from the Swift X-Ray Telescope and the Swift…

High Energy Astrophysical Phenomena · Physics 2015-06-03 Stephen T. Holland , Massimiliano De Pasquale , Jirong Mao , Takanori Sakamoto , Patricia Schady , Stefano Covino , Yi-Zhong Fan , Zhi Ping Jin , Paolo D'Avanzo , Angelo Antonelli , Valerio D'Elia , Guido Chincarini , Fabrizio Fiore , Shashi Bhushan Pandey , Bethany E. Cobb

Revealing nature of GRB 210205A, ZTF21aaeyldq (AT2021any), and follow-up observations with the 4K$\times$4K CCD Imager+3.6m DOT

Optical follow-up observations of optical afterglows of gamma-ray bursts are crucial to probe the geometry of outflows, emission mechanisms, energetics, and burst environments. We performed the follow-up observations of GRB 210205A and…

High Energy Astrophysical Phenomena · Physics 2022-07-20 Rahul Gupta , Amit Kumar , Shashi Bhushan Pandey , A. J. Castro-Tirado , Ankur Ghosh , Dimple , Y. -D. Hu , E. Fernández-García , M. D. Caballero-García , M. Á. Castro-Tirado , R. P. Hedrosa , I. Hermelo , I. Vico , Kuntal Misra , Brajesh Kumar , Amar Aryan , Sugriva Nath Tiwari

GRB090426: the farthest short gamma-ray burst?

Aims. With an observed and rest-frame duration of < 2s and < 0.5s, respectively, GRB090426 could be classified as a short GRB. The prompt detection, both from space and ground-based telescopes, of a bright optical counterpart to this GRB…

High Energy Astrophysical Phenomena · Physics 2015-05-14 L. A. Antonelli , P. D Avanzo , R. Perna , L. Amati , S. Covino , S. Cutini , V. D Elia , S. Gallozzi , A. Grazian , E. Palazzi , S. Piranomonte , A. Rossi , S. Spiro , L. Stella , V. Testa , G. Chincarini , A. Di Paola , F. Fiore , D. Fugazza , E. Giallongo , E. Maiorano , N. Masetti , F. Pedichini , R. Salvaterra , G. Tagliaferri , S. Vergani

GRANDMA and HXMT Observations of GRB 221009A -- the Standard-Luminosity Afterglow of a Hyper-Luminous Gamma-Ray Burst

GRB 221009A is the brightest Gamma-Ray Burst (GRB) detected in more than 50 years of study. In this paper, we present observations in the X-ray and optical domains after the GRB obtained by the GRANDMA Collaboration (which includes…

High Energy Astrophysical Phenomena · Physics 2023-05-17 D. A. Kann , S. Agayeva , V. Aivazyan , S. Alishov , C. M. Andrade , S. Antier , A. Baransky , P. Bendjoya , Z. Benkhaldoun , S. Beradze , D. Berezin , M. Boër , E. Broens , S. Brunier , M. Bulla , O. Burkhonov , E. Burns , Y. Chen , Y. P. Chen , M. Conti , M. W. Coughlin , W. W. Cui , F. Daigne , B. Delaveau , H. A. R. Devillepoix , T. Dietrich , D. Dornic , F. Dubois , J. -G. Ducoin , E. Durand , P. -A. Duverne , H. -B. Eggenstein , S. Ehgamberdiev , A. Fouad , M. Freeberg , D. Froebrich , M. Y. Ge , S. Gervasoni , V. Godunova , P. Gokuldass , E. Gurbanov , D. W. Han , E. Hasanov , P. Hello , T. Hussenot-Desenonges , R. Inasaridze , A. Iskandar , N. Ismailov , A. Janati , T. Jegou du Laz , S. M. Jia , S. Karpov , A. Kaeouach , R. W. Kiendrebeogo , A. Klotz , R. Kneip , N. Kochiashvili , N. Kunert , A. Lekic , S. Leonini , C. K. Li , W. Li , X. B. Li , J. Y. Liao , L. Logie , F. J. Lu , J. Mao , D. Marchais , R. Ménard , D. Morris , R. Natsvlishvili , V. Nedora , K. Noonan , K. Noysena , N. B. Orange , P. T. H. Pang , H. W. Peng , C. Pellouin , J. Peloton , T. Pradier , O. Pyshna , Y. Rajabo , S. Rau , C. Rinner , J. -P. Rivet , F. D. Romanov , P. Rosi , V. A. Rupchandani , M. Serrau , A. Shokry , A. Simon , K. Smith , O. Sokoliuk , M. Soliman , L. M. Song , A. Takey , Y. Tillayev , L. M. Tinjaca Ramirez , I. Tosta e Melo , D. Turpin , A. de Ugarte Postigo , S. Vanaverbeke , V. Vasylenko , D. Vernet , Z. Vidadi , C. Wang , J. Wang , L. T. Wang , X. F. Wang , Shaolin L. Xiong , Y. P. Xu , W. C. Xue , X. Zeng , S. N. Zhang , H. S. Zhao , X. F. Zhao

The Optical/NIR afterglow of GRB 111209A: Complex yet not Unprecedented

Afterglows of Gamma-Ray Bursts (GRBs) are simple in the most basic model, but can show many complex features. The ultra-long duration GRB 111209A, one of the longest GRBs ever detected, also has the best-monitored afterglow in this rare…

High Energy Astrophysical Phenomena · Physics 2018-10-03 D. A. Kann , P. Schady , F. Olivares E. , S. Klose , A. Rossi , D. A. Perley , B. Zhang , T. Krühler , J. Greiner , A. Nicuesa Guelbenzu , J. Elliott , F. Knust , Z. Cano , R. Filgas , E. Pian , P. Mazzali , J. P. U. Fynbo , G. Leloudas , P. M. J. Afonso , C. Delvaux , J. F. Graham , A. Rau , S. Schmidl , S. Schulze , M. Tanga , A. C. Updike , K. Varela

Colour variations in the GRB 120327A afterglow

We present a comprehensive temporal and spectral analysis of the long Swift GRB 120327A afterglow data to investigate the possible causes of the observed early time colour variations. We collected data from various instruments/telescopes in…

High Energy Astrophysical Phenomena · Physics 2017-11-01 A. Melandri , S. Covino , E. Zaninoni , S. Campana , J. Bolmer , B. E. Cobb , J. Gorosabel , J. -W. Kim , P. Kuin , D. Kuroda , D. Malesani , C. G. Mundell , F. Nappo , B. Sbarufatti , R. J. Smith , I. A. Steele , M. Topinka , A. S. Trotter , F. J. Virgili , M. G. Bernardini , P. D'Avanzo , V. D'Elia , D. Fugazza , G. Ghirlanda , A. Gomboc , J. Greiner , C. Guidorzi , J. B. Haislip , H. Hanayama , L. Hanlon , M. Im , K. M. Ivarsen , J. Japelj , M. Jelinek , N. Kawai , S. Kobayashi , D. Kopac , A. P. LaCluyze , A. Martin-Carrillo , D. Murphy , D. E. Reichart , R. Salvaterra , O. S. Salafia , G. Tagliaferri , S. D. Vergani

The afterglow of GRB050709 and the nature of the short-hard gamma-ray bursts

The final chapter in the long-standing mystery of the gamma-ray bursts (GRBs) centres on the origin of the short-hard class, suspected on theoretical grounds to result from the coalescence of neutron star or black hole binary systems.…

Astrophysics · Physics 2008-11-26 D. B. Fox , D. A. Frail , P. A. Price , S. R. Kulkarni , E. Berger , T. Piran , A. M. Soderberg , S. B. Cenko , P. B. Cameron , A. Gal-Yam , M. M. Kasliwal , D. -S. Moon , F. A. Harrison , E. Nakar , B. P. Schmidt , B. Penprase , R. A. Chevalier , P. Kumar , K. Roth , D. Watson , B. L. Lee , S. Shectman , M. M. Phillips , M. Roth , P. J. McCarthy , M. Rauch , L. Cowie , B. A. Peterson , J. Rich , N. Kawai , K. Aoki , G. Kosugi , T. Totani , H. -S. Park , A. MacFadyen , K. C. Hurley

Photometric and Spectroscopic Observations of GRB 210104A: Bright Reverse shock Emission and Dense Circumburst Environment

Early afterglow observations of gamma-ray bursts (GRBs) are valuable for exploring the properties of their jets and ambient medium. We report our photometric and spectroscopic observations of GRB 210104A and discuss its jet properties with…

High Energy Astrophysical Phenomena · Physics 2022-12-16 Lu-Lu Zhang , Li-Ping Xin , Jing Wang , Xu-Hui Han , Dong Xu , Zi-Pei Zhu , Chao Wu , Jian-Yan Wei , En-Wei Liang

A very-high-energy component deep in the Gamma-ray Burst afterglow

Gamma-ray bursts (GRBs) are brief flashes of gamma rays, considered to be the most energetic explosive phenomena in the Universe. The emission from GRBs comprises a short (typically tens of seconds) and bright prompt emission, followed by a…

High Energy Astrophysical Phenomena · Physics 2019-11-21 H. Abdalla R. Adam F. Aharonian F. Ait Benkhali E. O. Anguener M. Arakawa , C. Arcaro , C. Armand , H. Ashkar , M. Backes , V. Barbosa Martins , M. Barnard Y. Becherini , D. Berge , K. Bernloehr , E. Bissaldi , R. Blackwell , M. Boettcher , C. Boisson , J. Bolmont , S. Bonnefoy , J. Bregeon , M. Breuhaus , F. Brun , P. Brun , M. Bryan , M. Buechele , T. Bulik , T. Bylund , M. Capasso , S. Caroff , A. Carosi , S. Casanova , M. Cerruti , T. Chand , S. Chandra , A. Chen , S. Colafrancesco , M. Curylo , I. D. Davids , C. Deil , J. Devin , P. deWilt , L. Dirson , A. Djannati-Atai , A. Dmytriiev , A. Donath , V. Doroshenko , J. Dyks , K. Egberts , G. Emery , J. -P. Ernenwein , S. Eschbach , K. Feijen , S. Fegan , A. Fiasson , G. Fontaine , S. Funk , M. Fuessling , S. Gabici , Y. A. Gallant , F. Gate , G. Giavitto , L. Giunti , D. Glawion , J. F. Glicenstein , D. Gottschall , M. -H. Grondin , J. Hahn , M. Haupt , G. Heinzelmann , G. Henri , G. Hermann , J. A. Hinton , W. Hofmann , C. Hoischen , T. L. Holch , M. Holler , D. Horns , D. Huber , H. Iwasaki , M. Jamrozy , D. Jankowsky , F. Jankowsky , A. Jardin-Blicq , I. Jung-Richardt , M. A. Kastendieck , K. Katarzynski , M. Katsuragawa , U. Katz , D. Khangulyan , B. Khelifi , J. King , S. Klepser , W. Kluzniak , N. Komin , K. Kosack , D. Kostunin , M. Kreter , G. Lamanna , A. Lemiere , M. Lemoine-Goumard , J. -P. Lenain , E. Leser , C. Levy , T. Lohse , I. Lypova , J. Mackey , J. Majumdar , D. Malyshev , V. Marandon , A. Marcowith , A. Mares , C. Mariaud , G. Marti-Devesa , R. Marx , G. Maurin , P. J. Meintjes , A. M. W. Mitchell , R. Moderski , M. Mohamed , L. Mohrmann , C. Moore , E. Moulin , J. Muller , T. Murach , S. Nakashima , M. de Naurois , H. Ndiyavala , F. Niederwanger , J. Niemiec , L. Oakes , P. O Brien , H. Odaka , S. Ohm , E. de Ona Wilhelmi , M. Ostrowski , I. Oya , M. Panter , R. D. Parsons , C. Perennes , P. -O. Petrucci , B. Peyaud , Q. Piel , S. Pita , V. Poireau , A. Priyana Noel , D. A. Prokhorov , H. Prokoph , G. Puehlhofer , M. Punch , A. Quirrenbach , S. Raab , R. Rauth , A. Reimer , O. Reimer , Q. Remy , M. Renaud , F. Rieger , L. Rinchiuso , C. Romoli , G. Rowell , B. Rudak , E. Ruiz-Velasco , V. Sahakian , S. Sailer , S. Saito , D. A. Sanchez , A. Santangelo , M. Sasaki , R. Schlickeiser , F. Schuessler , A. Schulz , H. M. Schutte , U. Schwanke , S. Schwemmer , M. Seglar-Arroyo , M. Senniappan , A. S. Seyffert , N. Shafi , K. Shiningayamwe , R. Simoni , A. Sinha , H. Sol , A. Specovius , M. Spir-Jacob , L. Stawarz , R. Steenkamp , C. Stegmann , C. Steppa , T. Takahashi , T. Tavernier , A. M. Taylor , R. Terrier , D. Tiziani , M. Tluczykont , C. Trichard , M. Tsirou , N. Tsuji , R. Tuffs , Y. Uchiyama , D. J. van der Walt , C. van Eldik , C. van Rensburg , B. van Soelen , G. Vasileiadis , J. Veh , C. Venter , P. Vincent , J. Vink , H. J. Voelk , T. Vuillaume , Z. Wadiasingh , S. J. Wagner , R. White , A. Wierzcholska , R. Yang , H. Yoneda , M. Zacharias , R. Zanin , A. A. Zdziarski , A. Zech , A. Ziegler , J. Zorn , N. Zywucka , F. de Palma , M. Axelsson , O. J. Roberts

Circular polarization in the optical afterglow of GRB 121024A

Gamma-ray bursts (GRBs) are most probably powered by collimated relativistic outflows (jets) from accreting black holes at cosmological distances. Bright afterglows are produced when the outflow collides with the ambient medium. Afterglow…

High Energy Astrophysical Phenomena · Physics 2014-10-03 K. Wiersema , S. Covino , K. Toma , A. J. van der Horst , K. Varela , M. Min , J. Greiner , R. L. C. Starling , N. R. Tanvir , R. A. M. J. Wijers , S. Campana , P. A. Curran , Y. Fan , J. P. U. Fynbo , J. Gorosabel , A. Gomboc , D. Gotz , J. Hjorth , Z. P. Jin , S. Kobayashi , C. Kouveliotou , C. Mundell , P. T. O'Brien , E. Pian , A. Rowlinson , D. M. Russell , R. Salvaterra , S. di Serego Alighieri , G. Tagliaferri , S. D. Vergani , J. Elliott , C. Farina , O. E. Hartoog , R. Karjalainen , S. Klose , F. Knust , A. J. Levan , P. Schady , V. Sudilovski , R. Willingale

Optical/infrared observations of the extraordinary GRB 250702B: a highly obscured afterglow in a massive galaxy consistent with multiple possible progenitors

GRB 250702B was the longest gamma-ray burst ever detected, with a duration that challenges standard collapsar models and suggests an exotic progenitor. We collected a rich set of optical and infrared follow-up observations of its rapidly…

High Energy Astrophysical Phenomena · Physics 2025-11-07 Jonathan Carney , Igor Andreoni , Brendan O'Connor , James Freeburn , Hannah Skobe , Lewi Westcott , Malte Busmann , Antonella Palmese , Xander J. Hall , Ramandeep Gill , Paz Beniamini , Eric R. Coughlin , Charles D. Kilpatrick , Akash Anumarlapudi , Nicholas M. Law , Hank Corbett , Tomas Ahumada , Ping Chen , Christopher Conselice , Guillermo Damke , Kaustav K. Das , Avishay Gal-Yam , Daniel Gruen , Steve Heathcote , Lei Hu , Viraj Karambelkar , Mansi Kasliwal , Kathleen Labrie , Dheeraj Pasham , Arno Riffeser , Michael Schmidt , Kritti Sharma , Silona Wilke , Weicheng Zang

GRB 060313: A New Paradigm for Short-Hard Bursts?

We report the simultaneous observations of the prompt emission in the gamma-ray and hard X-ray bands by the Swift-BAT and the KONUS-Wind instruments of the short-hard burst, GRB 060313. The observations reveal multiple peaks in both the…

Astrophysics · Physics 2008-11-26 Peter W. A. Roming , Daniel Vanden Berk , Valentin Palshin , Claudio Pagani , Jay Norris , Pawan Kumar , Hans Krimm , Stephen T. Holland , Caryl Gronwall , A lex J. Blustin , Bing Zhang , Patricia Schady , Takanori Sakamoto , Julian P. Osborne , John A. Nousek , Frank E. Marshall , Peter Meszaros , Sergey V. Golenetskii , Neil Gehrels , Dmitry D. Frederiks , Sergio Campana , David N. Burrows , Patricia T. Boyd , Scott Barthelmy , R. L. Aptekar

The Double-Burst Nature and Early Afterglow Evolution of Long GRB 110801A

We present a comprehensive temporal and spectral analysis of the long-duration gamma-ray burst GRB 110801A, utilizing multi-band data from the Neil Gehrels Swift Observatory and ground-based telescopes. The $\gamma$-ray emission exhibits a…

High Energy Astrophysical Phenomena · Physics 2026-05-07 Qiu-Li Wang , Hao Zhou , Yun Wang , Jia Ren , Zhi-Ping Jin , Da-Ming Wei

Detailed Afterglow Modeling and Host Galaxy Properties of the Dark GRB 111215A

Gamma-ray burst (GRB) 111215A was bright at X-ray and radio frequencies, but not detected in the optical or near-infrared (nIR) down to deep limits. We have observed the GRB afterglow with the Westerbork Synthesis Radio Telescope and…

High Energy Astrophysical Phenomena · Physics 2015-06-22 A. J. van der Horst , A. J. Levan , G. G. Pooley , K. Wiersema , T. Kruhler , D. A. Perley , R. L. C. Starling , P. A. Curran , N. R. Tanvir , R. A. M. J. Wijers , R. G. Strom , C. Kouveliotou , O. E. Hartoog , D. Xu , J. P. U. Fynbo , P. Jakobsson

The Detectability of Gamma-Ray Bursts and Their Afterglows at Very High Redshifts

There is increasingly strong evidence that gamma-ray bursts (GRBs) are associated with star-forming galaxies, and occur near or in the star-forming regions of these galaxies. These associations provide indirect evidence that at least the…

Astrophysics · Physics 2009-10-31 Donald Q. Lamb , Daniel E. Reichart

Discovery of a tight correlation for gamma ray burst afterglows with `canonical' light curves

Gamma Ray Bursts (GRB) observed up to redshifts $z>8$ are fascinating objects to study due to their still unexplained relativistic outburst mechanisms and a possible use to test cosmological models. Our analysis of 77 GRB afterglows with…

High Energy Astrophysical Phenomena · Physics 2015-05-19 M. G. Dainotti , R. Willingale , S. Capozziello , V. F. Cardone , M. Ostrowski