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

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Gamma-ray burst (GRB) afterglow emission can be observed from sub-TeV to radio wavelengths, though only 6.6\% of observed GRBs present radio afterglows. We examine GRB radio light curves (LCs) to look for the presence of radio plateaus,…

High Energy Astrophysical Phenomena · Physics 2022-02-02 Delina Levine , Maria Dainotti , Kevin J. Zvonarek , Nissim Fraija , Donald C. Warren , Poonam Chandra , Nicole Lloyd-Ronning

A plateau phase in the X-ray afterglow is observed in a significant fraction of gamma-ray bursts (GRBs). Previously, it has been found that there exists a correlation among three key parameters concerning the plateau phase, i.e., the end…

High Energy Astrophysical Phenomena · Physics 2019-11-06 Chen-Han Tang , Yong-Feng Huang , Jin-Jun Geng , Zhi-Bin Zhang

Plateau features are frequently observed in the afterglows of gamma-ray bursts (GRBs), yet their physical origins remain under debate. In this work, we compile a sample of 124 GRBs with known redshifts and simultaneous X-ray and optical…

High Energy Astrophysical Phenomena · Physics 2026-01-06 Xiao-Yan Li , Tong Liu , Bao-Quan Huang , Chen Deng

Gamma-Ray Bursts (GRBs) are panchromatic, highly energetic transients whose energy emission mechanism is still debated. One of the possible explanations is the standard fireball model, which can be tested with the closure relations (CRs),…

High Energy Astrophysical Phenomena · Physics 2023-01-04 Delina Levine , Maria Dainotti , Nissim Fraija , Donald Warren , Poonam Chandra , Nicole Lloyd-Ronning

Gamma-ray bursts (GRBs), as a possible probe to extend the Hubble diagram to high redshifts, have attracted much attention recently. In this paper, we select two samples of GRBs that have a plateau phase in X-ray afterglow. One is short…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-11 J. P. Hu , F. Y. Wang , Z. G. Dai

Gamma ray bursts (GRBs) have great advantages for their huge burst energies, luminosities and high redshifts in probing the Universe. A few interesting luminosity correlations of GRBs have been used to test cosmology models. Especially, for…

High Energy Astrophysical Phenomena · Physics 2015-05-27 M. Xu , Y. F. Huang

Gamma-ray bursts (GRBs) serve as important cosmological probes, whose X-ray afterglow light curves (LCs) may exhibit a plateau phase (with temporal slope $\alpha$ between 0 and 0.5) that may originate from magnetar energy injection. Similar…

Cosmology and Nongalactic Astrophysics · Physics 2025-08-21 Yu-Qi Zhou , Shuang-Xi Yi , Yu-Peng Yang , Jia-Lun Li , Jian-Ping Hu , Yan-Kun Qu , Fa-Yin Wang

As one of the most energetic and brightest events, gamma-ray bursts (GRBs) can be treated as a promising probe of the high-redshift universe. Similar to type Ia supernovae (SNe Ia), GRBs with same physical origin could be treated as…

High Energy Astrophysical Phenomena · Physics 2023-08-09 Jia-Lun Li , Yu-Peng Yang , Shuang-Xi Yi , Jian-Ping Hu , Fa-Yin Wang , Yan-Kun Qu

Well-sampled optical light curves of 50 gamma-ray bursts (GRBs) with plateau features are compiled from the literature. By empirical fitting, we obtained the parameters of the optical plateaus, such as the decay slopes ($\alpha_{\rm 1}$ and…

High Energy Astrophysical Phenomena · Physics 2018-08-15 Shu-Kun Si , Yan-Qing Qi , Feng-Xia Xue , Ya-Jie Liu , Xiao Wu , Shuang-Xi Yi , Qing-Wen Tang , Yuan-Chuan Zou , Fei-Fei Wang , Xiang-Gao Wang

Gamma-ray bursts (GRBs), which have been observed up to redshifts z approx 9.5 can be good probes of the early universe and have the potential of testing cosmological models. The analysis by Dainotti of GRB Swift afterglow lightcurves with…

High Energy Astrophysical Phenomena · Physics 2015-06-16 Maria Giovanna Dainotti , Vahe' Petrosian , Jack Singal , Michal Ostrowski

Using the generic hydrodynamic model of Gamma-Ray Burst (GRB) afterglows, we calculate the radio afterglow light curves of low luminosity, high luminosity, failed and standard GRBs in different observational bands of FAST's energy window.…

High Energy Astrophysical Phenomena · Physics 2015-06-18 Zhi-Bin Zhang , Si-Wei Kong , Yong-Feng Huang , Di Li , Long-Biao Li

Studies of gamma-ray bursts (GRBs) and their multi-wavelength afterglows have led to insights in electron acceleration and emission properties from relativistic, high-energy astrophysical sources. Broadband modeling across the…

High Energy Astrophysical Phenomena · Physics 2022-11-16 Ruby A. Duncan , Alexander J. van der Horst , Paz Beniamini

Gamma-ray bursts (GRBs), which have been observed up to redshifts $z \approx 9.5$ can be good probes of the early universe and have the potential of testing cosmological models. The analysis by Dainotti of GRB Swift afterglow lightcurves…

High Energy Astrophysical Phenomena · Physics 2013-07-30 Maria Giovanna Dainotti , Vahe' Petrosian , Jack Singal , Michal Ostrowski

According to the fireball model gamma-ray burst (GRB) afterglows are the result of a shock pushed into the surrounding medium by an extremely relativistic outflow from the GRB. By modeling the broadband spectrum, ranging from X-ray to radio…

Astrophysics · Physics 2010-11-11 A. J. van der Horst , R. A. M. J. Wijers , E. Rol

A class of long Gamma-Ray Bursts (GRBs) presenting light curves with an extended plateau phase in their X-ray afterglows obeys a correlation between the rest frame end time of the plateau, $T_a$, and its corresponding X-ray luminosity,…

High Energy Astrophysical Phenomena · Physics 2017-02-15 Maria Giovanna Dainotti , Sergey Postnikov , Xavier Hernandez , Michał Ostrowski

We examine a sample of 21 gamma-ray burst (GRB) afterglow light curves at radio frequencies, and compare them to the X-ray and/or optical properties of the afterglows and to the predictions of the standard jet/fireball model. Our sample…

High Energy Astrophysical Phenomena · Physics 2021-04-20 Tuomas Kangas , Andrew Fruchter

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

A large fraction of gamma-ray bursts (GRBs) shows a plateau phase during the X-ray afterglow emission, whose physical origin is still debated. In this work we define a sample of 30 GRBs with simultaneous X-ray and optical data during and…

Gamma-ray bursts (GRBs) are extremely high-energy events that can be observed at very high redshift. In addition to gamma rays, they can emit in X-ray, optical, and sometimes radio wavelengths. Here, following the approach in…

High Energy Astrophysical Phenomena · Physics 2022-12-07 M. G. Dainotti , D. Levine , D. Warren , N. Fraija , S. Sourav

Gamma-Ray Bursts (GRBs) are fascinating events due to their panchromatic nature. Their afterglow emission is observed from sub-TeV energies to radio wavelengths. We investigate GRBs that present an optical plateau, leveraging on the…

High Energy Astrophysical Phenomena · Physics 2021-01-06 M. G. Dainotti , S. Livermore , D. A. Kann , L. Li , S. Oates , S. Yi , B. Zhang , B. Gendre , B. Cenko , N. Fraija
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