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A Roadmap to Gamma-Ray Bursts: New Developments and Applications to Cosmology

open access: yesGalaxies, 2021
Gamma-ray bursts are the most powerful explosions in the universe and are mainly placed at very large redshifts, up to z≃9. In this short review, we first discuss gamma-ray burst classification and morphological properties.
Orlando Luongo, Marco Muccino
doaj   +3 more sources

Gamma-Ray Bursts at TeV Energies: Observational Status

open access: yesGalaxies, 2022
Gamma-ray bursts (GRBs) are some of the most energetic events in the Universe and are potential sites of cosmic ray acceleration up to the highest energies.
Koji Noda, Robert Daniel Parsons
doaj   +3 more sources

Stripping Model for Short Gamma-Ray Bursts in Neutron Star Mergers

open access: yesParticles, 2022
We overview the current status of the stripping model for short gamma-ray bursts. After the historical joint detection of the gravitational wave event GW170817 and the accompanying gamma-ray burst GRB170817A, the relation between short gamma-ray bursts ...
Sergei Blinnikov   +3 more
doaj   +3 more sources

Outliers in Spectral Time Lag-Selected Gamma Ray Bursts

open access: yesUniverse, 2022
It is possible that astrophysical samples are polluted by some outliers, which might belong to a different sub-class. By removing the outliers, the underlying statistical features may be revealed.
Fei-Fei Wang, Yuan-Chuan Zou
doaj   +1 more source

GECAM Localization of High-energy Transients and the Systematic Error

open access: yesThe Astrophysical Journal Supplement Series, 2023
The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a pair of microsatellites (i.e., GECAM-A and GECAM-B) dedicated to monitoring gamma-ray transients including the high-energy electromagnetic counterparts of ...
Yi Zhao   +65 more
doaj   +1 more source

Revisiting the Spectral Energy Correlations of GRBs with Fermi Data. I. Model-wise Properties

open access: yesThe Astrophysical Journal Supplement Series, 2023
Gamma-ray bursts (GRBs) exhibit a diversity of spectra. Several spectral models (e.g., Band, cutoff power law (CPL), and blackbody) and their hybrid versions (e.g., Band+blackbody) have been widely used to fit the observed GRB spectra.
Liang Li
doaj   +1 more source

Black Hole Accretion in Gamma Ray Bursts

open access: yesGalaxies, 2017
We study the structure and evolution of the hyperaccreting disks and outflows in the gamma ray bursts central engines. The torus around a stellar mass black hole is composed of free nucleons, Helium, electron-positron pairs, and is cooled by neutrino ...
Agnieszka Janiuk   +3 more
doaj   +1 more source

Early optical observations of seven gamma-ray bursts in comparison to their gamma X-ray characteristics in the MSU MASTER Global Robotic Telescopes Net

open access: yesГеодинамика и тектонофизика, 2019
Seven gamma-ray bursts – GRB 130907A, GRB 140311B, GRB 140129B, GRB 160227A, GRB 120404A, GRB 110801A, and GRB 120811C were observed by the MSU MASTER (Mobile Astronomical System of TElescope Robots) Global Network.
V. M. Lipunov   +31 more
doaj   +1 more source

GRB 221009A with an Unconventional Precursor: A Typical Two-stage Collapsar Scenario?

open access: yesThe Astrophysical Journal, 2023
As the brightest gamma-ray burst (GRB) ever detected, GRB 221009A may offer a chance that reveals some interesting features that are hidden in those bursts that are not so bright.
Xin-Ying Song, Shuang-Nan Zhang
doaj   +1 more source

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