Results 21 to 30 of about 249,127 (326)

Short-Duration Gamma-Ray Bursts [PDF]

open access: yes, 2013
Gamma-ray bursts (GRBs) display a bimodal duration distribution with a separation between the short- and long-duration bursts at about 2 s. The progenitors of long GRBs have been identified as massive stars based on their association with Type Ic core ...
E. Berger
semanticscholar   +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

Optical and Near-infrared Observations of the Distant but Bright “New Year’s Burst” GRB 220101A

open access: yesThe Astrophysical Journal, 2023
High-redshift gamma-ray bursts (GRBs) are useful to probe the early Universe, but only a few candidates have been detected so far. Here, we report the optical and near-infrared observations of the afterglow of a relatively high-redshift event GRB 220101A,
Zi-Pei Zhu   +28 more
doaj   +1 more source

Extending the Search for Muon Neutrinos Coincident with Gamma-Ray Bursts in IceCube Data [PDF]

open access: yes, 2017
We present an all-sky search for muon neutrinos produced during the prompt γ-ray emission of 1172 gamma-ray bursts (GRBs) with the IceCube Neutrino Observatory.
M. Aartsen   +307 more
semanticscholar   +1 more source

Unveiling the engines of fast radio bursts, superluminous supernovae, and gamma-ray bursts [PDF]

open access: yesMonthly notices of the Royal Astronomical Society, 2018
Young, rapidly spinning magnetars are invoked as central engines behind a diverse set of transient astrophysical phenomena, including gamma-ray bursts (GRB), super-luminous supernovae (SLSNe), fast radio bursts (FRB), and binary neutron star (NS) mergers.
B. Margalit   +5 more
semanticscholar   +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

Short Gamma Ray Bursts as possible electromagnetic counterpart of coalescing binary systems [PDF]

open access: yes, 2010
Coalescing binary systems, consisting of two collapsed objects, are among the most promising sources of high frequency gravitational waves signals detectable, in principle, by ground-based interferometers.
A. Abramovici   +38 more
core   +1 more source

Gamma-Ray Bursts

open access: yesStars and Stellar Processes, 2016
Gamma-ray bursts (GRBs) are short periods of γ-rays (high energy light waves) that are detected on Earth. They were originally detected by satellites that were designed to watch for nuclear weapons tests on Earth. GRBs are difficult to study because they
F. Daigne
semanticscholar   +1 more source

COMPTEL observations of cosmic gamma‐ray bursts [PDF]

open access: yes, 1991
The imaging γ‐ray telescope COMPTEL on board NASA’s Compton Gamma‐Ray Observatory (GRO) has observed many cosmic gamma‐ray bursts during the early mission phase of GRO. COMPTEL records time‐resolved burst spectra over 0.1 MeV to 10 MeV energies, and, for
Bennett, K   +26 more
core   +2 more sources

Off-axis Prompt X-Ray Transients from the Cocoon of Short Gamma-Ray Bursts [PDF]

open access: yes, 2017
We present the results of numerical simulations of the prompt emission of short-duration gamma-ray bursts. We consider emission from the relativistic jet, the mildly relativistic cocoon, and the non-relativistic shocked ambient material. We find that the
D. Lazzati   +5 more
semanticscholar   +1 more source

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