Results 1 to 10 of about 245,674 (370)

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

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   +2 more sources

BINARY NEUTRON STAR MERGERS: A JET ENGINE FOR SHORT GAMMA-RAY BURSTS. [PDF]

open access: yesAstrophys J Lett, 2016
We perform magnetohydrodynamic simulations in full general relativity (GRMHD) of quasi-circular, equal-mass, binary neutron stars that undergo merger. The initial stars are irrotational, n = 1 polytropes and are magnetized.
Ruiz M   +3 more
europepmc   +3 more sources

On the nature of gamma-ray burst time dilations [PDF]

open access: green, 1994
The recent discovery that faint gamma-ray bursts are stretched in time relative to bright ones has been interpreted as support for cosmological distances: faint bursts have their durations redshifted relative to bright ones.
Paczyński, Bohdan   +1 more
core   +5 more sources

A tera–electron volt afterglow from a narrow jet in an extremely bright gamma-ray burst [PDF]

open access: yesScience, 2023
Some gamma-ray bursts (GRBs) have a tera–electron volt (TeV) afterglow, but the early onset of this has not been observed. We report observations with the Large High Altitude Air Shower Observatory (LHAASO) of the bright GRB 221009A, which ...
Z. Cao   +277 more
semanticscholar   +1 more source

Very high-energy gamma-ray emission beyond 10 TeV from GRB 221009A [PDF]

open access: yesScience Advances, 2023
The highest-energy gamma-rays from gamma-ray bursts (GRBs) have important implications for their radiation mechanism. Here we report the detection of gamma-rays up to 13 teraelectronvolts from the brightest GRB 221009A by the Large High Altitude Air ...
Z. Cao   +278 more
semanticscholar   +1 more source

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   +1 more source

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   +1 more source

A Decade of Gamma-Ray Bursts Observed by Fermi-LAT: The Second GRB Catalog [PDF]

open access: yesAstrophysical Journal, 2019
The Large Area Telescope (LAT) aboard the Fermi spacecraft routinely observes high-energy emission from gamma-ray bursts (GRBs). Here we present the second catalog of LAT-detected GRBs, covering the first 10 yr of operations, from 2008 to 2018 August 4 ...
M. Ajello   +122 more
semanticscholar   +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

Very-high-energy Gamma-Ray Afterglows of GRB 201015A and GRB 201216C

open access: yesThe Astrophysical Journal, 2023
Gamma-ray bursts (GRBs) 201015A and 201216C are valuable cases where very-high-energy (VHE) gamma-ray afterglows have been detected. By analyzing their prompt emission data, we find that GRB 201216C is an extremely energetic, long GRB with a hard gamma ...
Lu-Lu Zhang   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy