Related papers: Exploring Broadband GRB Behavior During gamma-ray …

Photometric and Spectroscopic Observations of GRB 190106A: Emission from Reverse and Forward Shocks with Late-time Energy Injection

Early optical observations of gamma-ray bursts can significantly contribute to the study of the central engine and physical processes therein. However, of the thousands observed so far, still only a few have data at optical wavelengths in…

High Energy Astrophysical Phenomena · Physics 2023-05-10 Zi-Pei Zhu , Dong Xu , Johan P. U. Fynbo , Shao-Yu Fu , Xing Liu , Shuai-Qing Jiang , Shuo Xiao , Wei Xie , Yuan-Chuan Zou , He Gao , Dieter Hartmann , Antonio de Ugarte Postigo , David Alexander Kann , Massimo Della Valle , Pall Jakobsson , Tayabba Zafar , Valerio D'Elia , Li-Ping Xin , Jian-Yan Wei , Xing Gao , Jin-Zhong Liu , Tian-Hua Lu , Wei-Hua Lei

Very Early Optical Afterglows of Gamma-Ray Bursts: Evidence for Relative Paucity of Detection

Very early observations with the Swift satellite of gamma-ray burst (GRB) afterglows reveal that the optical component is not detected in a large number of cases. This is in contrast to the bright optical flashes previously discovered in…

Astrophysics · Physics 2009-11-11 P. W. A. Roming , P. Schady , D. B. Fox , B. Zhang , E. Liang , K. O. Mason , E. Rol , D. N. Burrows , A. J. Blustin , P. T. Boyd , P. Brown , S. T. Holland , K. McGowan , W. B. Landsman , K. L. Page , J. E. Rhoads , S. R. Rosen , D. Vanden Berk , S. D. Barthelmy , A. A. Breeveld , A. Cucchiara , M. De Pasquale , E. E. Fenimore , N. Gehrels , C. Gronwall , D. Grupe , M. R. Goad , M. Ivanushkina , C. James , J. A. Kennea , S. Kobayashi , V. Mangano , P. Meszaros , A. N. Morgan , J. A. Nousek , J. P. Osborne , D. M. Palmer , T. Poole , M. D. Still , G. Tagliaferri , S. Zane

The Early Optical Afterglow of GRB 030418 and Progenitor Mass Loss

The ROTSE-IIIa telescope and the SSO-40 inch telescope, both located at Siding Spring Observatory, imaged the early time afterglow of GRB 030418. In this report we present observations of the early afterglow, first detected by the…

Astrophysics · Physics 2009-11-10 E. S. Rykoff , D. A. Smith , P. A. Price , C. W. Akerlof , M. C. B. Ashley , D. Bizyaev , G. J. Garradd , T. A. McKay , R. H. McNaught , A. Phillips , R. Quimby , B. Schaefer , B. Schmidt , W. T. Vestrand , J. C. Wheeler , J. Wren

Soft Gamma-Ray Spectral and Time evolution of the GRB 221009A: prompt and afterglow emission with INTEGRAL/IBIS-PICsIT

The gamma-ray burst (GRB) 221009A, with its extreme brightness, has provided the opportunity to explore GRB prompt and afterglow emission behavior on short time scales with high statistics. In conjunction with detection up to very…

High Energy Astrophysical Phenomena · Physics 2023-08-30 James Rodi , Pietro Ubertini

Early optical observations of GRBs by the TAROT telescopes: period 2001-2008

The TAROT telescopes (Telescopes a Action Rapide pour les Objets Transitoires) are two robotic observatories designed to observe the prompt optical emission counterpart and the early afterglow of gamma ray bursts (GRBs). We present data…

High Energy Astrophysical Phenomena · Physics 2009-11-13 A. Klotz , M. Boer , J. L. Atteia , B. Gendre

A complete sample of bright Swift Gamma-Ray Bursts: X-ray afterglow luminosity and its correlation with the prompt emission

We investigate wheter there is any correlation between the X-ray afterglow luminosity and the prompt emission properties of a carefully selected sub-sample of bright Swift long Gamma-Ray Bursts (GRBs) nearly complete in redshift (~90%).…

High Energy Astrophysical Phenomena · Physics 2015-06-05 P. D'Avanzo , R. Salvaterra , B. Sbarufatti , L. Nava , A. Melandri , M. G. Bernardini , S. Campana , S. Covino , D. Fugazza , G. Ghirlanda , G. Ghisellini , V. La Parola , M. Perri , S. D. Vergani , G. Tagliaferri

Prompt and afterglow early X-ray phases in the comoving frame. Evidence for Universal properties?

We analyze the Swift XRT light curves and spectra of the gamma-ray bursts (GRBs) for which the redshift has been measured. The sample consists of seven GRBs. The soft X-ray light curves of all these GRBs are separated into at least two…

Astrophysics · Physics 2007-05-23 G. Chincarini , A. Moretti , P. Romano , S. Covino , G. Tagliaferri , S. Campana , M. Goad , S. Kobayashi , B. Zhang , L. Angelini , P. Banat , S. Barthelmy , A. P. Beardmore , P. T. Boyd , A. Breeveld , D. N. Burrows , M. Capalbi , M. M. Chester , G. Cusumano , E. E. Fenimore , N. Gehrels , P. Giommi , J. E. Hill , D. Hinshaw , S. T. Holland , J. A. Kennea , H. A. Krimm , V. La Parola , V. Mangano , F. E. Marshall , K. O. Mason , J. A. Nousek , P. T. O'Brien , J. P. Osborne , M. Perri , P. Meszaros , P. W. A. Roming , T. Sakamoto , P. Schady , M. Still , A. A. Wells

Fermi and Swift Observations of GRB 190114C: Tracing the Evolution of High-Energy Emission from Prompt to Afterglow

We report on the observations of gamma-ray burst (GRB) 190114C by the Fermi Gamma-ray Space Telescope and the Neil Gehrels Swift Observatory. The early-time observations reveal multiple emission components that evolve independently, with a…

High Energy Astrophysical Phenomena · Physics 2020-02-19 M. Ajello , M. Arimoto , M. Axelsson , L. Baldini , G. Barbiellini , D. Bastieri , R. Bellazzini , A. Berretta , E. Bissaldi , R. D. Blandford , R. Bonino , E. Bottacini , J. Bregeon , P. Bruel , R. Buehler , E. Burns , S. Buson , R. A. Cameron , R. Caputo , P. A. Caraveo , E. Cavazzuti , S. Chen , G. Chiaro , S. Ciprini , J. Cohen-Tanugi , D. Costantin , S. Cutini , F. D'Ammando , M. DeKlotz , P. de la Torre Luque , F. de Palma , A. Desai , N. Di Lalla , L. Di Venere , F. Fana Dirirsa , S. J. Fegan , A. Franckowiak , Y. Fukazawa , S. Funk , P. Fusco , F. Gargano , D. Gasparrini , N. Giglietto , R. Gill , F. Giordano , M. Giroletti , J. Granot , D. Green , I. A. Grenier , M. H. Grondin , S. Guiriec , E. Hays , D. Horan , G. Jóhannesson , D. Kocevski , M. Kovac'evic' , M. Kuss , S. Larsson , L. Latronico , M. Lemoine-Goumard , J. Li , I. Liodakis , F. Longo , F. Loparco , M. N. Lovellette , P. Lubrano , S. Maldera , D. Malyshev , A. Manfreda , G. Martí-Devesa , M. N. Mazziotta , J. E. McEnery , I. Mereu , M. Meyer , P. F. Michelson , W. Mitthumsiri , T. Mizuno , M. E. Monzani , E. Moretti , A. Morselli , I. V. Moskalenko , M. Negro , E. Nuss , N. Omodei , M. Orienti , E. Orlando , M. Palatiello , V. S. Paliya , D. Paneque , Z. Pei , M. Persic , M. Pesce-Rollins , V. Petrosian , F. Piron , H. Poon , T. A. Porter , G. Principe , J. L. Racusin , S. Rainò , R. Rando , B. Rani , M. Razzano , S. Razzaque , A. Reimer , O. Reimer , F. Ryde , P. M. Saz Parkinson , D. Serini , C. Sgrò , E. J. Siskind , G. Spandre , P. Spinelli , H. Tajima , K. Takagi , M. N. Takahashi , D. Tak , J. B. Thayer , D. J. Thompson , D. F. Torres , E. Troja , J. Valverde , B. Van Klaveren , K. Wood , M. Yassine , G. Zaharijas , P. N. Bhat , M. S. Briggs , W. Cleveland , M. Giles , A. Goldstein , M. Hui , C. Malacaria , R. Preece , O. Roberts , P. Veres , A. von Kienlin , S. B. Cenko , P. O'Brien , A. P. Beardmore , A. Lien , J. P. Osborne , A. Tohuvavohu , V. D'Elia , A. D'A , M. Perri , J. Gropp , N. Klingler , M. Capalbi , G. Tagliaferri , M. Stamatikos

Very Bright Prompt and Reverse Shock Emission of GRB 140512A

We report our observations of very bright prompt optical and reverse shock (RS) optical emission of GRB 140512A and analyze its multi-wavelength data observed with the {\em Swift} and {\em Fermi} missions. It is found that the joint…

High Energy Astrophysical Phenomena · Physics 2016-12-14 Xiao-Li Huang , Li-Ping Xin , Shuang-Xi Yi , Shu-Qing Zhong , Yu-Lei Qiu , Jin-Song Deng , Jian-Yan Wei , En-Wei Liang

Origin for the Prompt Spectral Evolution Characteristics and High Energy Emission during the X-Ray Flare in GRB 180720B

The gamma-ray burst GRB 180720B is very peculiar. On one hand, some interesting features have been found by performing the detailed time-resolved spectral analysis in the prompt phase. First, the `flux-tracking' pattern is exhibited both…

High Energy Astrophysical Phenomena · Physics 2019-12-24 Ming-Ya Duan , Xiang-Gao Wang

X-Ray Afterglows

We summarise the X-ray temporal and spectral variability properties of GRBs as observed using the Swift satellite. Despite much individual complexity, the flux and spectral variability can be reasonably well described by a combination of…

Astrophysics · Physics 2009-11-13 Paul O'Brien , Richard Willingale

Prompt and afterglow emission from the X-ray rich GRB981226 observed with BeppoSAX

We discuss observations of the prompt X and gamma-ray emission and X-ray afterglow from GRB981226. This event has the weakest gamma-ray peak flux detected with the Gamma-Ray Burst Monitor. It shows an isolated X-ray precursor and the…

Astrophysics · Physics 2009-10-31 F. Frontera , L. A. Antonelli , L. Amati , E. Montanari , E. Costa , D. Dal Fiume , P. Giommi , M. Feroci , G. Gennaro , J. Heise , N. Masetti , J. M. Muller , L. Nicastro , M. Orlandini , E. Palazzi , E. Pian , L. Piro , P. Soffitta , M. Stornelli , J. J. M. in 't Zand , D. A. Frail , S. R. Kulkarni , M. Vietri

Constraining GRB Emission Physics with Extensive Early-Time, Multiband Follow-up

Understanding the origin and diversity of emission processes responsible for Gamma-ray Bursts (GRBs) remains a pressing challenge. While prompt and contemporaneous panchromatic observations have the potential to test predictions of the…

High Energy Astrophysical Phenomena · Physics 2015-05-28 A. Cucchiara , S. B. Cenko , J. S. Bloom , A. Melandri , A. Morgan , S. Kobayashi , R. J. Smith , D. A. Perley , W. Li , J. L. Hora , R. L. da Silva , J. X. Prochaska , P. A. Milne , N. R. Butler , B. Cobb , G. Worseck , C. G. Mundell , I. A. Steele , A. V. Filippenko , M. Fumagalli , C. R. Klein , A. Stephens , A. Bluck , R. Mason

Correlations of Prompt and Afterglow Emission in Swift Long and Short Gamma Ray Bursts

Correlation studies of prompt and afterglow emissions from gamma-ray bursts (GRBs) between different spectral bands has been difficult to do in the past because few bursts had comprehensive and intercomparable afterglow measurements. In…

Astrophysics · Physics 2009-11-13 N. Gehrels , S. D. Barthelmy , D. N. Burrows , J. K. Cannizzo , G. Chincarini , E. Fenimore , C. Kouveliotou , P. O'Brien , D. M. Palmer , J. Racusin , P. W. A. Roming , T. Sakamoto , J. Tueller , R. A. M. J. Wijers , B. Zhang

A faint optical flash in dust-obscured GRB 080603A - implications for GRB prompt emission mechanisms

We report the detection of a faint optical flash by the 2-m Faulkes Telescope North simultaneously with the second of two prompt gamma-ray pulses in INTEGRAL gamma-ray burst (GRB) 080603A, beginning at t_rest = 37 s after the onset of the…

High Energy Astrophysical Phenomena · Physics 2011-08-25 C. Guidorzi , S. Kobayashi , D. A. Perley , G. Vianello , J. S. Bloom , P. Chandra , D. A. Kann , W. Li , C. G. Mundell , A. Pozanenko , J. X. Prochaska , K. Antoniuk , D. Bersier , A. V. Filippenko , D. A. Frail , A. Gomboc , E. Klunko , A. Melandri , S. Mereghetti , A. N. Morgan , P. T. O'Brien , V. Rumyantsev , R. J. Smith , I. A. Steele , N. R. Tanvir , A. Volnova

Physical processes shaping GRB X-ray afterglow lightcurves: theoretical implications from the Swift XRT observations

(Abridged) The Swift X-Ray Telescope (XRT) reveals some interesting features of early X-ray afterglows, including a distinct rapidly decaying component preceding the conventional afterglow component in many sources, a shallow decay…

Astrophysics · Physics 2009-11-13 Bing Zhang , Y. Z. Fan , Jaroslaw Dyks , Shiho Kobayashi , Peter Meszaros , David N. Burrows , John A. Nousek , Neil Gehrels

Early afterglow detection in the Swift observations of GRB 050801

We present results of Swift optical, UV and X-ray observations of the afterglow of GRB 050801. The source is visible over the full optical, UV and X-ray energy range of the Swift UVOT and XRT instruments.Both optical and X-ray lightcurves…

Astrophysics · Physics 2010-03-19 Massimiliano De Pasquale , S. R. Oates , M. J. Page , D. N. Burrows , A. J. Blustin , S. Zane , K. O. Mason , P. W. A. Roming , D. Palmer , N. Gehrels , B. Zhang

Prompt-to-afterglow transition of optical emission in a long gamma-ray burst consistent with a fireball

Long gamma-ray bursts (GRBs), which signify the end-life collapsing of very massive stars, are produced by extremely relativistic jets colliding into circumstellar medium. Huge energy is released both in the first few seconds, namely the…

High Energy Astrophysical Phenomena · Physics 2023-04-11 Liping Xin , Xuhui Han , Huali Li , Bing Zhang , Jing Wang , Damien Turpin , Xing Yang , Yulei Qiu , Enwei Liang , Zigao Dai , Hongbo Cai , Xiaomeng Lu , Xiang-Yu Wang , Lei Huang , Xianggao Wang , Chao Wu , He Gao , Jia Ren , Lulu Zhang , Yuangui Yang , Jingsong Deng , Jianyan Wei

GRB 140102A: Insight into Prompt Spectral Evolution and Early Optical Afterglow Emission

We present and perform a detailed analysis of multi-wavelength observations of \thisgrb, an optical bright GRB with an observed reverse shock (RS) signature. Observations of this GRB were acquired with the BOOTES-4 robotic telescope, the…

High Energy Astrophysical Phenomena · Physics 2021-06-30 Rahul Gupta , S. R. Oates , S. B. Pandey , A. J. Castro-Tirado , Jagdish C. Joshi , Y. -D. Hu , A. F. Valeev , B. B. Zhang , Z. Zhang , Amit Kumar , A. Aryan , A. Lien , B. Kumar , Ch. Cui , Ch. Wang , Dimple , D. Bhattacharya , E. Sonbas , J. Bai , J. C. Tello , J. Gorosabel , J. M. Castro Cerón , J. R. F. Porto , K. Misra , M. De Pasquale , M. D. Caballero-García , M. Jelínek , P. Kubánek , P. Yu. Minaev , R. Cunniffe , R. Sánchez-Ramírez , S. Guziy , S. Jeong , S. N. Tiwari , S. Razzaque , V. Bhalerao , V. C. Pintado , V. V. Sokolov , X. Zhao , Y. Fan , Y. Xin

GRB 080503: Implications of a Naked Short Gamma-Ray Burst Dominated by Extended Emission

We report on observations of GRB 080503, a short gamma-ray burst with very bright extended emission (about 30 times the gamma-ray fluence of the initial spike) in conjunction with a thorough comparison to other short Swift events. In spite…

Astrophysics · Physics 2014-11-18 D. A. Perley , B. D. Metzger , J. Granot , N. R. Butler , T. Sakamoto , E. Ramirez-Ruiz , A. J. Levan , J. S. Bloom , A. A. Miller , A. Bunker , H. -W. Chen , A. V. Filippenko , N. Gehrels , K. Glazebrook , P. B. Hall , K. C. Hurley , D. Kocevski , W. Li , S. Lopez , J. Norris , A. L. Piro , D. Poznanski , J. X. Prochaska , E. Quataert , N. Tanvir