Related papers: The GROND gamma-ray burst sample. I. Overview and …

The nature of "dark" gamma-ray bursts

Context: Thirteen years after the discovery of the first afterglows, the nature of dark gamma-ray bursts (GRB) still eludes explanation: while each ng-duration GRB typically has an X-ray afterglow, optical/NIR emission is only seen for…

High Energy Astrophysical Phenomena · Physics 2016-08-14 J. Greiner , T. Krühler , S. Klose , P. Afonso , C. Clemens , R. Filgas , D. H. Hartmann , A. Küpcü Yoldaş , M. Nardini , F. Olivares Estay , A. Rau , A. Rossi , P. Schady , A. Updike

The X-shooter GRB afterglow legacy sample (XS-GRB)

In this work we present spectra of all $\gamma$-ray burst (GRB) afterglows that have been promptly observed with the X-shooter spectrograph until 31-03-2017. In total, we obtained spectroscopic observations of 103 individual GRBs observed…

High Energy Astrophysical Phenomena · Physics 2019-03-13 J. Selsing , D. Malesani , P. Goldoni , J. P. U. Fynbo , T. Krühler , L. A. Antonelli , M. Arabsalmani , J. Bolmer , Z. Cano , L. Christensen , S. Covino , P. D'Avanzo , V. D'Elia , A. De Cia , A. de Ugarte Postigo , H. Flores , M. Friis , A. Gomboc , J. Greiner , P. Groot , F. Hammer , O. E. Hartoog , K. E. Heintz , J. Hjorth , P. Jakobsson , J. Japelj , D. A. Kann , L. Kaper , C. Ledoux , G. Leloudas , A. J. Levan , E. Maiorano , A. Melandri , B. Milvang-Jensen , E. Palazzi , J. T. Palmerio , D. A. Perley , E. Pian , S. Piranomonte , G. Pugliese , R. Sánchez-Ramírez , S. Savaglio , P. Schady , S. Schulze , J. Sollerman , M. Sparre , G. Tagliaferri , N. R. Tanvir , C. C. Thöne , S. D. Vergani , P. Vreeswijk , D. Watson , K. Wiersema , R. Wijers , D. Xu , T. Zafar

The GROND GRB sample: II. Fireball parameters for four GRB afterglows

Afterglows of GRBs are, in general, well described by the fireball model. Yet, deducing the full set of model parameters from observations without prior assumptions has been possible for only a handful of GRBs. With GROND, a 7-channel…

High Energy Astrophysical Phenomena · Physics 2025-09-03 Karla Varela , Jochen Greiner , Patricia Schady , Hendrik van Eerten

Multi-color observations of short GRB afterglows: 20 events observed between 2007 and 2010

We report on follow-up observations of 20 short-duration gamma-ray bursts performed in g'r'i'z'JHKs with the seven-channel imager GROND between mid-2007 and the end of 2010. This is one of the most comprehensive data sets on GRB afterglow…

High Energy Astrophysical Phenomena · Physics 2015-06-05 A. Nicuesa Guelbenzu , S. Klose , J. Greiner , D. A. Kann , T. Kruehler , A. Rossi , S. Schulze , P. M. J. Afonso , J. Elliott , R. Filgas , D. H. Hartmann , A. Kuepcue Yoldas , S. McBreen , M. Nardini , F. Olivares E. , A. Rau , S. Schmidl , P. Schady , V. Sudilovsky , A. C. Updike , A. Yoldas

On the Environment of Short Gamma-ray Bursts

In this paper we present a sample of 10 short gamma-ray bursts (GRBs) with a robust redshift determination, discovered by the Swift satellite up to January 2011. We measure their X-ray absorbing column densities and collect data on the host…

High Energy Astrophysical Phenomena · Physics 2015-06-04 D. Kopač , P. D'Avanzo , A. Melandri , S. Campana , A. Gomboc , J. Japelj , M. G. Bernardini , S. Covino , S. D. Vergani , R. Salvaterra , G. Tagliaferri

GRB 080913 at redshift 6.7

We report on the detection by Swift of GRB 080913, and subsequent optical/near-infrared follow-up observations by GROND which led to the discovery of its optical/NIR afterglow and the recognition of its high-z nature via the detection of a…

Astrophysics · Physics 2010-03-19 J. Greiner , T. Kruehler , J. P. U. Fynbo , A. Rossi , R. Schwarz , S. Klose , S. Savaglio , N. R. Tanvir , S. McBreen , T. Totani , B. B. Zhang , X. F. Wu , D. Watson , S. D. Barthelmy , A. P. Beardmore , P. Ferrero , N. Gehrels , D. A. Kann , N. Kawai , A. Kuepcue Yoldas , P. Meszaros , B. Milvang-Jensen , S. R. Oates , D. Pierini , P. Schady , K. Toma , P. M. Vreeswijk , A. Yoldas , B. Zhang , P. Afonso , K. Aoki , D. N. Burrows , C. Clemens , R. Filgas , Z. Haiman , D. H. Hartmann , G. Hasinger , J. Hjorth , E. Jehin , A. J. Levan , E. W. Liang , D. Malesani , T. -S. Pyo , S. Schulze , G. Szokoly , H. Terada , K. Wiersema

The Afterglow of GRB 130427A from 1 to 10^16 GHz

We present multiwavelength observations of the afterglow of GRB 130427A, the brightest (in total fluence) gamma-ray burst of the past 29 years. Optical spectroscopy from Gemini-North reveals the redshift of the GRB to be z=0.340, indicating…

High Energy Astrophysical Phenomena · Physics 2014-01-14 D. A. Perley , S. B. Cenko , A. Corsi , N. R. Tanvir , A. J. Levan , D. A. Kann , E. Sonbas , K. Wiersema , W. Zheng , X. -H. Zhao , J. -M. Bai , M. Bremer , A. J. Castro-Tirado , L. Chang , K. I. Clubb , D. Frail , A. Fruchter , E. Göğüş , J. Greiner , T. Güver , A. Horesh , A. V. Filippenko , S. Klose , J. Mao , A. N. Morgan , A. S. Pozanenko , S. Schmidl , B. Stecklum , M. Tanga , A. A. Volnova , A. E. Volvach , J. -G. Wang , J. -M. Winters , Y. -X. Xin

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

A Radio-Selected Sample of Gamma Ray Burst Afterglows

We present a catalog of radio afterglow observations of gamma-ray bursts (GRBs) over a 14 year period from 1997 to 2011. Our sample of 304 afterglows consists of 2995 flux density measurements (including upper limits) at frequencies between…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Poonam Chandra , Dale A. Frail

The Afterglows of Swift-era Gamma-Ray Bursts. I. Comparing pre-Swift and Swift era Long/Soft (Type II) GRB Optical Afterglows

We have gathered optical photometry data from the literature on a large sample of Swift-era gamma-ray burst (GRB) afterglows including GRBs up to September 2009, for a total of 76 GRBs, and present an additional three pre-Swift GRBs not…

Astrophysics · Physics 2016-03-28 D. A. Kann , S. Klose , B. Zhang , D. Malesani , E. Nakar , A. Pozanenko , A. C. Wilson , N. R. Butler , P. Jakobsson , S. Schulze , M. Andreev , L. A. Antonelli , I. F. Bikmaev , V. Biryukov , M. Böttcher , R. A. Burenin , J. M. Castro Cerón , A. J. Castro-Tirado , G. Chincarini , B. E. Cobb , S. Covino , P. D'Avanzo , V. D'Elia , M. Della Valle , A. de Ugarte Postigo , Yu. Efimov , P. Ferrero , D. Fugazza , J. P. U. Fynbo , M. Gålfalk , F. Grundahl , J. Gorosabel , S. Gupta , S. Guziy , B. Hafizov , J. Hjorth , K. Holhjem , M. Ibrahimov , M. Im , G. L. Israel , M. Jeĺinek , B. L. Jensen , R. Karimov , I. M. Khamitov , Ü. Kızıloǧlu , E. Klunko , P. Kubánek , A. S. Kutyrev , P. Laursen , A. J. Levan , F. Mannucci , C. M. Martin , A. Mescheryakov , N. Mirabal , J. P. Norris , J. -E. Ovaldsen , D. Paraficz , E. Pavlenko , S. Piranomonte , A. Rossi , V. Rumyantsev , R. Salinas , A. Sergeev , D. Sharapov , J. Sollerman , B. Stecklum , L. Stella , G. Tagliaferri , N. R. Tanvir , J. Telting , V. Testa , A. C. Updike , A. Volnova , D. Watson , K. Wiersema , D. Xu

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

Observations of the Naked-Eye GRB 080319B: Implications of Nature's Brightest Explosion

The first gamma-ray burst (GRB) confirmed to be bright enough to be seen with the naked eye, GRB 080319B at redshift z = 0.937, allowed for exquisite follow-up observations across the electromagnetic spectrum. We present our detailed…

Astrophysics · Physics 2009-06-23 J. S. Bloom , D. A. Perley , W. Li , N. R. Butler , A. A. Miller , D. Kocevski , D. A. Kann , R. J. Foley , H. -W. Chen , A. V. Filippenko , D. L. Starr , B. Macomber , J. X. Prochaska , R. Chornock , D. Poznanski , S. Klose , M. F. Skrutskie , S. Lopez , P. Hall , K. Glazebrook , C. H. Blake

Four GRB-Supernovae at Redshifts between 0.4 and 0.8

Twenty years ago, GRB 980425/SN 1998bw revealed that long Gamma-Ray Bursts (GRBs) are physically associated with broad-lined type Ic supernovae. Since then more than 1000 long GRBs have been localized to high angular precision, but only in…

High Energy Astrophysical Phenomena · Physics 2019-02-13 S. Klose , S. Schmidl , D. A. Kann , A. Nicuesa Guelbenzu , S. Schulze , J. Greiner , F. Olivares , T. Kruehler , P. Schady , P. M. J. Afonso , R. Filgas , J. P. U. Fynbo , D. A. Perley , A. Rau , A. Rossi , K. Takats , M. Tanga , A. C. Updike , K. Varela

Robust photometric redshift determinations of gamma-ray burst afterglows at z > 2

Theory suggests that about 10% of Swift-detected gamma-ray bursts (GRBs) will originate at redshifts greater than 5 yet a number of high redshift candidates may be left unconfirmed due to the lack of measured redshifts. Here we introduce…

Astrophysics · Physics 2009-11-13 P. A. Curran , R. A. M. J. Wijers , M. H. M. Heemskerk , R. L. C. Starling , K. Wiersema , A. J. van der Horst

Dark Bursts in the Swift Era: The Palomar 60 inch-Swift Early Optical Afterglow Catalog

We present multi-color optical observations of long-duration gamma-ray bursts (GRBs) made over a three year period with the robotic Palomar 60 inch telescope (P60). Our sample consists of all 29 events discovered by Swift for which P60…

Astrophysics · Physics 2010-05-12 S. B. Cenko , J. Kelemen , F. A. Harrison , D. B. Fox , S. R. Kulkarni , M. M. Kasliwal , E. O. Ofek , A. Rau , A. Gal-Yam , D. A. Frail , D. -S. Moon

Theories of GRB Early Afterglow

The rapid follow-up of gamma-ray burst (GRB) afterglows made possible by the multi-wavelength satellite Swift, launched in November 2004, has put under a microscope the GRB early post-burst behavior, This is leading to a significant…

Astrophysics · Physics 2009-11-11 P. Meszaros

The Host Galaxies of Swift Dark Gamma-Ray Bursts: Observational Constraints on Highly Obscured and Very High-Redshift GRBs

In this work we present the first results of our imaging campaign at Keck Observatory to identify the host galaxies of "dark" gamma-ray bursts (GRBs), events with no detected optical afterglow or with detected optical flux significantly…

High Energy Astrophysical Phenomena · Physics 2009-11-03 D. A. Perley , S. B. Cenko , J. S. Bloom , H. -W. Chen , N. R. Butler , D. Kocevski , J. X. Prochaska , M. Brodwin , K. Glazebrook , M. M. Kasliwal , S. R. Kulkarni , S. Lopez , E. O. Ofek , M. Pettini , A. M. Soderberg , D. Starr

GRB 221009A: Discovery of an Exceptionally Rare Nearby and Energetic Gamma-Ray Burst

We report the discovery of the unusually bright long-duration gamma-ray burst (GRB), GRB 221009A, as observed by the Neil Gehrels Swift Observatory (Swift), Monitor of All-sky X-ray Image (MAXI), and Neutron Star Interior Composition…

High Energy Astrophysical Phenomena · Physics 2023-04-05 Maia A. Williams , Jamie A. Kennea , S. Dichiara , Kohei Kobayashi , Wataru B. Iwakiri , Andrew P. Beardmore , P. A. Evans , Sebastian Heinz , Amy Lien , S. R. Oates , Hitoshi Negoro , S. Bradley Cenko , Douglas J. K. Buisson , Dieter H. Hartmann , Gaurava K. Jaisawal , N. P. M. Kuin , Stephen Lesage , Kim L. Page , Tyler Parsotan , Dheeraj R. Pasham , B. Sbarufatti , Michael H. Siegel , Satoshi Sugita , George Younes , Elena Ambrosi , Zaven Arzoumanian , M. G. Bernardini , S. Campana , Milvia Capalbi , Regina Caputo , Antonino D'Ai , P. D'Avanzo , V. D'Elia , Massimiliano De Pasquale , R. A. J. Eyles-Ferris , Elizabeth Ferrara , Keith C. Gendreau , Jeffrey D. Gropp , Nobuyuki Kawai , Noel Klingler , Sibasish Laha , A. Melandri , Tatehiro Mihara , Michael Moss , Paul O'Brien , Julian P. Osborne , David M. Palmer , Matteo Perri , Motoko Serino , E. Sonbas , Michael Stamatikos , Rhaana Starling , G. Tagliaferri , Aaron Tohuvavohu , Silvia Zane , Houri Ziaeepour

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

Optical and near-infrared follow-up observations of four Fermi/LAT GRBs : Redshifts, afterglows, energetics and host galaxies

Fermi can measure the spectral properties of gamma-ray bursts over a very large energy range and is opening a new window on the prompt emission of these energetic events. Localizations by the instruments on Fermi in combination with…

High Energy Astrophysical Phenomena · Physics 2015-03-13 S. McBreen , T. Krühler , A. Rau , J. Greiner , D. A. Kann , S. Savaglio , P. Afonso , C. Clemens , R. Filgas , S. Klose , A. Küpüc Yoldas , F. Olivares E. , A. Rossi , G. P. Szokoly , A. Updike , A. Yoldas