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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

GAMMA-RAY BURSTS [PDF]

open access: yesParticles, Strings and Cosmology (PASCOS 99), 2000
Ultra-high-energy, >10^19 eV, cosmic-ray and high energy, ~10^14 eV, neutrino production in GRBs is discussed in the light of recent GRB and cosmic-ray observations. Emphasis is put on model predictions that can be tested with operating and planned cosmic-ray and neutrino detectors, and on the prospects of testing for neutrino properties.
Robert Mochkovitch, Kevin Hurley
core   +7 more sources

Gamma-Ray Bursts [PDF]

open access: yesStars and Stellar Processes, 2022
Gamma-ray bursts (GRB) are short and intense bursts of $\sim$100 keV$-$1MeV photons, usually followed by long-lasting decaying afterglow emission in a wide range of electromagnetic wavelengths from radio to X-ray and, sometimes, even to GeV gamma-rays.
Yu, Yun-Wei   +3 more
openaire   +3 more sources

Are there MeV gamma-ray bursts? [PDF]

open access: yesAIP Conference Proceedings, 1996
It is often stated that gamma-ray bursts (GRBs) have typical energies of several hundred keV. Is this a real feature of GRBs or is it due to an observational bias? We consider the possibility that bursts of a given bolometric luminosity occur with a hardness distribution $p(H)d \log H \propto H^ d \log H$. We model the detection efficiency of BATSE as
Tsvi Piran, Ramesh Narayan
openaire   +7 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

The physics of gamma-ray bursts [PDF]

open access: yesReviews of Modern Physics, 2005
159 pages, 33 figures, accepted for publication in Reviews of Modern ...
T. Piran
openaire   +5 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

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

Gamma-Ray Bursts [PDF]

open access: yesScience, 2012
Stellar Explosions Stars that are born with masses greater than eight times that of the Sun end their lives in luminous explosions known as supernovae. Over the past decade, access to improved sky surveys has revealed rare types of supernovae that are much more luminous than any of those that were known before.
Neil Gehrels, Peter Mészáros
openaire   +6 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   +1 more source

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