Results 11 to 20 of about 452 (208)

Physical constraints on models of gamma-ray bursters [PDF]

open access: yesInternational Astronomical Union Colloquium, 1986
AbstractThe power per logarithmic bandwidth in gamma-ray burst spectra generally increases rapidly with energy through the x-ray range and does not cut off sharply above a few MeV. This spectral form indicates that a very small fraction of the energy from a gamma-ray burst source is emitted at low energies or is reprocessed into x-rays and that the ...
Epstein, R. I.
openaire   +3 more sources

Theory of Gamma Ray Bursters [PDF]

open access: yesSymposium - International Astronomical Union, 1987
Gamma ray bursters are interpreted as nuclear explosions under the surface of neutron stars. The explosions occur after transportation of the matter with nonequilibrium composition during starquakes in outer layers where the matter becomes unstable and explodes as a result of a developing chain reaction.
G. S. Bisnovatyi-Kogan
openaire   +2 more sources

Origin of Gamma Ray Bursters [PDF]

open access: yesProgress of Theoretical Physics Supplement, 1999
The successful discovery of X-ray, optical and radio afterglows of GRB has made possible the identification of host galaxies at cosmological distances. The energy release inferred in these outbursts place them among the most energetic and violent events in the Universe.
Peter Mészáros
openaire   +3 more sources

Gamma-ray burster counterparts - Archival data

open access: yesThe Astrophysical Journal, 1990
This paper reports on the results of a search for optical transient images associated with gamma-ray bursters based on the collection of archival photographs at the Harvard College Observatory. This study searched through over 32,000 plates showing 16 gamma-ray burst error regions.
Schaefer, Bradley E.
openaire   +2 more sources

GRANDMA and HXMT Observations of GRB 221009A: The Standard Luminosity Afterglow of a Hyperluminous Gamma-Ray Burst—In Gedenken an David Alexander Kann

open access: yesThe Astrophysical Journal Letters, 2023
Object GRB 221009A is the brightest gamma-ray burst (GRB) detected in more than 50 yr of study. In this paper, we present observations in the X-ray and optical domains obtained by the GRANDMA Collaboration and the Insight Collaboration.
D. A. Kann   +115 more
doaj   +1 more source

The Magellanic Clouds as the source of gamma-ray bursters [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1993
We present a new model for gamma-ray bursts to explain their isotropic but inhomogeneous space distribution. We propose that the Magellanic Clouds are the source of a special population of gamma-ray-bursting pulsars which are easily ejected from the Clouds and lead to a halo distribution which is homogeneous within a radius of ∼ 50 kpc and falls off ...
Fabian, A, Podsiadlowski, P
openaire   +2 more sources

Gamma ray bursters and black holes in gravity’s rainbow

open access: yesInternational Journal of Geometric Methods in Modern Physics, 2023
In this paper, we analyze the modification to the thermodynamics of a Schwarzschild black hole and a Kerr black hole due to gravity’s rainbow. The metric for these black holes will be made energy dependent. This will be done by using rainbow functions motivated from the hard spectra from gamma-ray bursters at cosmological distances.
Akram, Moh Vaseem   +2 more
openaire   +3 more sources

Gamma-ray bursts and bursters [PDF]

open access: yesNuclear Physics B - Proceedings Supplements, 2000
Invited talk at the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, Paris, Dec. 1998. To appear in Nuclear Phys. B, (Proceedings Supplements), Elsevier Science; latex file, 15 pages, 6 figures, uses espcrc2.sty, included; minor ...
openaire   +2 more sources

Simulations of X-ray bursts and superbursts [PDF]

open access: yes, 2015
Observations of neutron star in binary systems provide powerful constrains on the physics at the surface of neutron stars. During the accretion of matter from the companion star, periodic nuclear explosion are triggered in the outer layers of the neutron
Fehlmann, Sofie
core   +1 more source

THE NUMERICAL THREE-DIMENSIONAL HYDRODYNAMIC SIMULATION OF THE γ-RAY BURSTERS AND X-RAY BURSTERS

open access: yesOdessa Astronomical Publications, 2013
An radiative wind accretion on to the compact object in a detached close binary system (CBS) where one of the components is a supergiant with radiation stellar wind that blows from its surface, and another component is a compact object (black hole or ...
V. V. Nazarenko   +2 more
doaj   +1 more source

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