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Related papers: Radio Plateaus in Gamma-Ray Burst Afterglows and T…

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The Dainotti relation empirically connects the isotropic plateau luminosity ($L_X$) in gamma-ray bursts (GRBs) X-ray afterglows to the rest-frame time at which the plateau ends ($T_a^*$), enabling both the standardization of GRBs and their…

High Energy Astrophysical Phenomena · Physics 2025-07-15 Emre S. Yorgancioglu , Daban Mohammed Saeed , Rahim Moradi , Yu Wang

For gamma-ray bursts (GRBs) with a plateau phase in the X-ray afterglow, a so called $L-T-E$ correlation has been found which tightly connects the isotropic energy of the prompt GRB ($E_{\gamma,\rm{iso}}$) with the end time of the X-ray…

High Energy Astrophysical Phenomena · Physics 2021-10-26 Fan Xu , Chen-Han Tang , Jin-Jun Geng , Fa-Yin Wang , Yu-Yang Wang , Abudushataer Kuerban , Yong-Feng Huang

Short gamma-ray bursts (GRBs) exhibiting a plateau phase provide valuable insights into the post-merger activity of their central engines. Although the physical origin of the plateau remains uncertain, the magnetar energy injection model…

High Energy Astrophysical Phenomena · Physics 2026-02-24 Chen Deng , Yong-Feng Huang , Abdusattar Kurban , Jin-Jun Geng , Fan Xu , Xiao-Fei Dong , Hao-Xuan Gao , En-Wei Liang , Liang Li

A significant fraction of gamma-ray bursts (GRBs) exhibit a plateau in the early X-ray afterglow light curve, whose mechanism remains uncertain. While the post-plateau normal decay index ($\alpha_2$) is commonly used to constrain the…

High Energy Astrophysical Phenomena · Physics 2026-02-03 Xiao-Fei Dong , Yong-Feng Huang , Chen Deng , Ze-Cheng Zou , Jin-Jun Geng , Fan Xu , Chen-Ran Hu , Orkash Amat , Xiu-Juan Li , Liang Li , Abdusattar Kurban

The Large Area Telescope (LAT) on board the \Fermi Gamma-ray Space Telescope (\Fermi) shows long-lasting high-energy emission in many gamma-ray bursts (GRBs), similar to X-ray afterglows observed by the Neil Gehrels Swift Observatory…

Gamma-ray burst (GRB) X-ray light curves exhibit a variety of complex temporal structures, such as flares and plateaus. The origin of flares seen in many GRB early afterglows is still uncertain. Here, we analyze a sample of 89 GRBs, 61 of…

High Energy Astrophysical Phenomena · Physics 2025-12-09 H. Dereli-Bégué , A. Pe'er , D. Bégué , F. Ryde , A. Gowri

We investigate the intrinsic properties of a sample of bright (E_iso > 10^52 erg) gamma-ray bursts, comparing those with and without radio afterglows. We find that the sample of bursts with no radio afterglows has a significantly shorter…

High Energy Astrophysical Phenomena · Physics 2017-03-22 Nicole M. Lloyd-Ronning , Christopher L. Fryer

Radio observations of gamma-ray burst (GRB) afterglows provide both complementary and unique diagnostics of the afterglow physics and environment of the burst. Here we concentrate on three unique aspects of GRB energetics and environments…

Astrophysics · Physics 2007-05-23 E. Berger

Radio afterglow studies have become an integral part of the study of gamma-ray bursts, providing complementary and sometimes unique diagnostics on GRB explosions, their progenitors, and their environments. This brief review consists of two…

Astrophysics · Physics 2007-05-23 Dale A. Frail

Long gamma-ray bursts (GRBs) with a plateau phase in their X-ray afterglows obeys a three-dimensional (3D) relation (Dainotti et al. 2016), between the rest-frame time at the end of the plateau, Ta, its corresponding X-ray luminosity, La,…

The recent detection of delayed X-ray and optical emission, ``afterglow,'' associated with gamma-ray bursts (GRBs) supports models, where the bursts are produced by relativistic expanding blastwaves, ``fireballs,'' at cosmological…

Astrophysics · Physics 2011-03-17 Eli Waxman

Radio observations of gamma-ray burst (GRB) afterglows are essential for our understanding of the physics of relativistic blast waves, as they enable us to follow the evolution of GRB explosions much longer than the afterglows in any other…

Radio observations of gamma-ray burst (GRB) afterglows are essential for our understanding of the physics of relativistic blast waves, as they enable us to follow the evolution of GRB explosions much longer than the afterglows in any other…

To reveal and understand astrophysical processes responsible for the Gamma Ray Burst (GRB) phenomenon, it is crucial to discover and understand relations between their observational properties. The presented study is performed in the GRB…

High Energy Astrophysical Phenomena · Physics 2015-05-27 Maria Giovanna Dainotti , Michal Ostrowski , Richard Willingale

Considering the contribution of the emission from the host galaxies of gamma-ray bursts (GRBs) to the radio afterglows, we investigate the effect of host galaxies on observations statistically. For the three types of events, e.g.…

High Energy Astrophysical Phenomena · Physics 2015-05-05 Long-Biao Li , Zhi-Bin Zhang , Yong-Feng Huang , Xue-Feng Wu , Si-Wei Kong , Di Li , Heon-Young Chang , Chul-Sung Choi

It has been widely recognized that gamma-ray burst (GRB) afterglows arise from interactions between GRB outflow and circumburst medium, while their evolution follows the behaviors of relativistic shock waves. Assuming the distribution of…

High Energy Astrophysical Phenomena · Physics 2022-03-17 Bo Zhang , Liang-Duan Liu , Tian-Rui Sun , Fen Lyu , Xue-Feng Wu

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

Context. Gamma-ray burst (GRB) afterglows originate from the interaction between the relativistic ejecta and the surrounding medium. Consequently, their properties depend on several aspects: radiation mechanisms, relativistic shock…

High Energy Astrophysical Phenomena · Physics 2022-05-03 M. Marongiu , C. Guidorzi , G. Stratta , A. Gomboc , N. Jordana-Mitjans , S. Dichiara , S. Kobayashi , D. Kopac , C. G. Mundell

The spectral properties from radio to optical bands are compared between the 18 optically bright Gamma-ray burst afterglows and well established power-spectrum sequence in Blazars. The comparison shows that the afterglows are well agreement…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-20 J. Wang , J. Y. Wei

A class of long gamma-ray bursts (GRBs) with a plateau phase in their X-ray afterglows obeys a three-dimensional (3D) relation (Dainotti et al. 2016), between the rest-frame time at the end of the plateau, Ta, its corresponding X-ray…

High Energy Astrophysical Phenomena · Physics 2016-11-01 Maria Dainotti , Christian Gilbertson , Sergey Postnikov , Shigehiro Nagataki , Richard Willingale