Related papers: The Anticipated Supernova Associated with GRB09061…

GRB 050509b: the elusive optical/nIR/mm afterglow of a short-duration GRB

We present multiwavelength (optical/near infrared/millimetre) observations of a short duration gamma-ray burst detected by Swift (GRB 050509b) collected between 0 seconds and ~18.8 days after the event. No optical, near infrared or…

Astrophysics · Physics 2007-05-23 A. J. Castro-Tirado , A. de Ugarte Postigo , J. Gorosabel , T. Fatkhullin , V. Sokolov , M. Bremer , I. Márquez , A. J. Marin , S. Guziy , M. Jelinek , P. Kubanek , R. Hudec , S. Vitek , T. J. Mateo Sanguino , A. Eigenbrod , M. D. Pérez-Ramírez , A. Sota , J. Masegosa , F. Prada , M. Moles

GRB 070518: A Gamma-ray Burst with Optically Dim Luminosity

We present our optical observations of {\em Swift} GRB 070518 afterglow obtained at the 0.8-m Tsinghua University-National Astronomical Observatory of China telescope (TNT) at Xinglong Observatory. Our follow-up observations were performed…

High Energy Astrophysical Phenomena · Physics 2015-05-14 L. P. Xin , W. K. Zheng , J. Wang , J. S. Deng , Y. Urata , Y. L. Qiu , K. Y. Huang , J. Y. Hu , J. Y. Wei

Gamma-Ray Bursts and Type Ic Supernovae: SN 1998bw

Recently a Type Ic supernova, SN 1998bw, was discovered coincident with a gamma-ray burst, GRB 980425. The supernova had unusual radio, optical, and spectroscopic properties. We explore here models based upon helium stars in the range 9 -…

Astrophysics · Physics 2009-10-30 S. E. Woosley , Ronald G. Eastman , Brian P. Schmidt

The Signature of Supernova Ejecta Measured in the X-ray Afterglow of Gamma-Ray Burst 011211

Since their identification with cosmological distances, Gamma-ray bursts (GRBs) have been recognised as the most energetic phenomena in the Universe, with an isotropic burst energy as high as 10^54 ergs. However, the progenitors responsible…

Astrophysics · Physics 2009-11-07 J. N. Reeves , D. Watson , J. P. Osborne , K. A. Pounds , P. T. O'Brien , A. D. T. Short , M. J. L. Turner , M. G. Watson , K. O. Mason , M. Ehle , N. Schartel

Supernova 1998bw - The final phases

The probable association with GRB 980425 immediately put SN 1998bw at the forefront of supernova research. Here, we present revised late-time BVRI light curves of the supernova, based on template images taken at the VLT. To follow the…

Astrophysics · Physics 2009-11-07 J. Sollerman , S. T. Holland , P. Challis , C. Fransson , P. Garnavich , R. P. Kirshner , C. Kozma , B. Leibundgut , P. Lundqvist , F. Patat , A. V. Filippenko , N. Panagia , J. C. Wheeler

Late-time HST and JWST Observations of GRB 221009A: Evidence for a Break in the Light Curve at 50 Days

GRB 221009A is one of the brightest transients ever observed with the highest peak gamma-ray flux for a gamma-ray burst (GRB). A type Ic-BL supernova (SN), SN 2022xiw, was definitively detected in late-time JWST spectroscopy (t = 195 days,…

High Energy Astrophysical Phenomena · Physics 2025-03-27 Huei Sears , Ryan Chornock , Peter Blanchard , Raffaella Margutti , V. Ashley Villar , Justin Pierel , Patrick J. Vallely , Kate D. Alexander , Edo Berger , Tarraneh Eftekhari , Wynn V. Jacobson-Galan , Tanmoy Laskar , Natalie LeBaron , Brian D. Metzger , Dan Milisavljevic

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

GRB 010921: Strong Limits on an Underlying Supernova from HST

GRB 010921 was the first HETE-2 GRB to be localized via its afterglow emission. The low-redshift of the host galaxy, z=0.451, prompted us to undertake intensive multi-color observations with the Hubble Space Telescope with the goal of…

Astrophysics · Physics 2010-05-12 P. A. Price , S. R. Kulkarni , B. P. Schmidt , T. J. Galama , J. S. Bloom , E. Berger , D. A. Frail , S. G. Djorgovski , D. W. Fox , A. A. Henden , S. Klose , F. A. Harrison , D. E. Reichart , R. Sari , S. A. Yost , T. S. Axelrod , P. McCarthy , J. Holtzman , J. P. Halpern , R. A. Kimble , J. C. Wheeler , R. A. Chevalier , K. Hurley , G. R. Ricker , E. Costa , F. Frontera , L. Piro

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 afterglow and complex environment of the optically dim burst GRB 980613

We report the identification of the optical afterglow of GRB 980613 in R- and I-band images obtained between 16 and 48 hours after the gamma-ray burst. Early near-infrared (NIR) H and K' observations are also reported. The afterglow was…

Astrophysics · Physics 2007-05-23 Jens Hjorth , Bjarne Thomsen , Svend R. Nielsen , Michael I. Andersen , Stephen T. Holland , Johan U. Fynbo , Holger Pedersen , Andreas O. Jaunsen , Jules P. Halpern , Robert Fesen , Javier Gorosabel , Alberto Castro-Tirado , Richard G. McMahon , Michael D. Hoenig , Gunnlaugur Björnsson , Lorenzo Amati , Nial R. Tanvir , Priyamvada Natarajan

Deep Photometry of GRB 041006 Afterglow: Hypernova Bump at Redshift z=0.716

We present deep optical photometry of the afterglow of gamma-ray burst (GRB) 041006 and its associated hypernova obtained over 65 days after detection (55 R-band epochs on 10 different nights). Our early data (t<4 days) joined with…

Astrophysics · Physics 2009-11-10 K. Z. Stanek , P. M. Garnavich , P. A. Nutzman , J. D. Hartman , A. Garg , K. Adelberger , P. Berlind , A. Z. Bonanos , M. L. Calkins , P. Challis , B. S. Gaudi , M. J. Holman , R. P. Kirshner , B. A. McLeod , D. Osip , T. Pimenova T. H. Reiprich , W. Romanishin , T. Spahr , S. C. Tegler , X. Zhao

GRB 100418A: a Long GRB without a Bright Supernova in a High-Metallicity Host Galaxy

We present results of a search for a supernova (SN) component associated with GRB 100418A at the redshift of 0.624. The field of GRB 100418A was observed with FOCAS on Subaru 8.2m telescope under a photometric condition (seeing 0.3"-0.4")…

High Energy Astrophysical Phenomena · Physics 2015-06-04 Yuu Niino , Tetsuya Hashimoto , Kentaro Aoki , Takashi Hattori , Kiyoto Yabe , Ken'ichi Nomoto

0ptical observations of GRB afterglows: GRB 970508 and GRB 980326 revisited

Since January 1997, we have monitored 15 GRB fields, detecting 6 optical/IR afterglows. For GRB 970508, we derive a power-law decay exponent alpha = -1.19 (R-band). The luminosity of the host galaxy L relative to the characteristic…

Astrophysics · Physics 2009-10-31 Alberto Castro-Tirado , Javier Gorosabel

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

Broadband study of GRB 091127: a sub-energetic burst at higher redshift?

GRB 091127 is a bright gamma-ray burst (GRB) detected by Swift at a redshift z=0.49 and associated with SN 2009nz. We present the broadband analysis of the GRB prompt and afterglow emission and study its high-energy properties in the…

High Energy Astrophysical Phenomena · Physics 2015-06-03 E. Troja , T. Sakamoto , C. Guidorzi , J. P. Norris , A. Panaitescu , S. Kobayashi , N. Omodei , J. C. Brown , D. N. Burrows , P. A. Evans , N. Gehrels , F. E. Marshall , N. Mawson , A. Melandri , C. G. Mundell , S. R. Oates , V. Pal'shin , R. D. Preece , J. L. Racusin , I. A. Steele , N. R. Tanvir , V. Vasileiou , C. Wilson-Hodge , K. Yamaoka

GRB 221009A, its precursor and two afterglows in the Fermi data

We study GRB 221009A, the brightest gamma-ray burst in the history of observations, using Fermi data. To calibrate them for large inclination angles, we use the Vela X gamma-ray source. Light curves in different spectral ranges demonstrate…

High Energy Astrophysical Phenomena · Physics 2023-03-22 B. Stern , I. Tkachev

The extraordinarily bright optical afterglow of GRB 991208 and its host galaxy

Observations of the extraordinarily bright optical afterglow (OA) of GRB 991208 started 2.1 d after the event. The flux decay constant of the OA in the R-band is -2.30 +/- 0.07 up to 5 d, which is very likely due to the jet effect, and…

Astrophysics · Physics 2007-05-23 A. J. Castro-Tirado , V. V. Sokolov , J. Gorosabel , J. M. Castro Cerón , J. Greiner , R. A. M. J. Wijers , B. L. Jensen , J. Hjorth , S. Toft , H. Pedersen , E. Palazzi , E. Pian , N. Masetti , R. Sagar , V. Mohan , A. K. Pandey , S. B. Pandey , S. N. Dodonov , T. A. Fatkhullin , V. L. Afanasiev , V. N. Komarova , A. V. Moiseev , R. Hudec , V. Simon , P. Vreeswijk , E. Rol , S. Klose , B. Stecklum , M. R. Zapatero-Osorio , N. Caon , C. Blake , J. Wall , D. Heinlein , A. Henden , S. Benetti , A. Magazzu , F. Ghinassi , L. Tommasi , M. Bremer , C. Kouveliotou , S. Guziy , A. Shlyapnikov , U. Hopp , G. Feulner , S. Dreizler , D. Hartmann , H. Boehnhardt , J. M. Paredes , J. Marti , E. Xanthopoulos , H. E. Kristen , J. Smoker , H. Hurley

Highly Luminous Supernovae associated with Gamma-Ray Bursts I.: GRB 111209A/SN 2011kl in the Context of Stripped-Envelope and Superluminous Supernovae

GRB 111209A, one of the longest Gamma-Ray Bursts (GRBs) ever observed, is linked to SN 2011kl, the most luminous GRB-Supernova (SN) detected so far, which shows evidence for being powered by a magnetar central engine. We place SN 2011kl…

High Energy Astrophysical Phenomena · Physics 2019-05-01 D. A. Kann , P. Schady , F. E. Olivares , S. Klose , A. Rossi , D. A. Perley , T. Krühler , J. Greiner , A. Nicuesa Guelbenzu , J. Elliott , F. Knust , 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

GRB 980425, SN1998bw and the EMBH model

The EMBH model, previously developed using GRB 991216 as a prototype, is here applied to GRB 980425. We fit the luminosity observed in the 40-700 keV, 2-26 keV and 2-10 keV bands by the BeppoSAX satellite. In addition we present a novel…

Astrophysics · Physics 2009-11-07 Remo Ruffini , Maria Grazia Bernardini , Carlo Luciano Bianco , Pascal Chardonnet , Federico Fraschetti , She-Sheng Xue

X-ray Emission of Supernova 1998bw in the Error Box of GRB980425

The spatial and temporal coincidence of a GRB and a supernova explosion (1998bw) on 25 April 1998 has raised conjectures on the physical connection between the two phenomena, and in general on the association of GRBs with supernovae, at…

Astrophysics · Physics 2007-05-23 Elena Pian