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Possible galactic origin of. gamma. -ray bursts

Journal Article:

Abstract

It is stated that extragalactic models for the origin of non-solar ..gamma..-ray bursts include supernova bursts in remote galaxies, and the collapse of the cores of active stars, whilst galactic models are based on flare stars, thermonuclear explosions in neutron stars and the sudden accretion of cometary gas on to neutron stars. The acceptability of any of these models may be tested by the observed size spectrum of the ..gamma..-ray bursts. The extragalactic models predict a power law spectrum with number index -1.5, whilst for the galactic models the number index will be -1. Experimental data on ..gamma..-ray bursts is, however, still meagre, and so far only 44 confirmed events have been recorded by satellite-borne instruments. The number spectrum of the observed ..gamma..-ray bursts indicates that the observed distribution for events with an energy < 10/sup -4/ erg/cm/sup 2/ is flat; this makes the choice of any model completely arbitrary. An analysis of the observed ..gamma..-ray events is here presented that suggests very interesting possibilities for their origin. There appears to be a preferred mean energy for ..gamma..-ray bursts; some 90% of the recorded events show a mean energy between 5 x 10/sup -5/ and 5 x 10/sup -4/ erg/cm/sup  More>>
Authors:
Manchanda, R K; Ramsden, D [1] 
  1. Southampton Univ. (UK). Dept. of Physics
Publication Date:
Mar 31, 1977
Product Type:
Journal Article
Reference Number:
AIX-08-311870; EDB-77-102414
Resource Relation:
Journal Name: Nature (London); (United Kingdom); Journal Volume: 266:5601
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COSMIC GAMMA BURSTS; ENERGY SPECTRA; ORIGIN; SPATIAL DISTRIBUTION; GALAXIES; CORRELATIONS; NEUTRON STARS; SUPERNOVA REMNANTS; COSMIC RADIATION; COSMIC RADIO SOURCES; DISTRIBUTION; IONIZING RADIATIONS; PRIMARY COSMIC RADIATION; RADIATIONS; SPECTRA; STARS; 640101* - Astrophysics & Cosmology- Cosmic Radiation; 640105 - Astrophysics & Cosmology- Galaxies
OSTI ID:
7310701
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: NATUA
Submitting Site:
INIS
Size:
Pages: 425-427
Announcement Date:

Journal Article:

Citation Formats

Manchanda, R K, and Ramsden, D. Possible galactic origin of. gamma. -ray bursts. United Kingdom: N. p., 1977. Web. doi:10.1038/266425a0.
Manchanda, R K, & Ramsden, D. Possible galactic origin of. gamma. -ray bursts. United Kingdom. doi:10.1038/266425a0.
Manchanda, R K, and Ramsden, D. 1977. "Possible galactic origin of. gamma. -ray bursts." United Kingdom. doi:10.1038/266425a0. https://www.osti.gov/servlets/purl/10.1038/266425a0.
@misc{etde_7310701,
title = {Possible galactic origin of. gamma. -ray bursts}
author = {Manchanda, R K, and Ramsden, D}
abstractNote = {It is stated that extragalactic models for the origin of non-solar ..gamma..-ray bursts include supernova bursts in remote galaxies, and the collapse of the cores of active stars, whilst galactic models are based on flare stars, thermonuclear explosions in neutron stars and the sudden accretion of cometary gas on to neutron stars. The acceptability of any of these models may be tested by the observed size spectrum of the ..gamma..-ray bursts. The extragalactic models predict a power law spectrum with number index -1.5, whilst for the galactic models the number index will be -1. Experimental data on ..gamma..-ray bursts is, however, still meagre, and so far only 44 confirmed events have been recorded by satellite-borne instruments. The number spectrum of the observed ..gamma..-ray bursts indicates that the observed distribution for events with an energy < 10/sup -4/ erg/cm/sup 2/ is flat; this makes the choice of any model completely arbitrary. An analysis of the observed ..gamma..-ray events is here presented that suggests very interesting possibilities for their origin. There appears to be a preferred mean energy for ..gamma..-ray bursts; some 90% of the recorded events show a mean energy between 5 x 10/sup -5/ and 5 x 10/sup -4/ erg/cm/sup 2/, contrary to the predicted characteristics of the number spectrum of various models. A remarkable similarity is found between the distribution of ..gamma..-ray bursts and that of supernova remnants, suggesting a genetic relationship between the two and the galactic origin of the ..gamma..-ray bursts, and the burst source could be identified with completely run down neutron stars, formed during supernova explosions.}
doi = {10.1038/266425a0}
journal = {Nature (London); (United Kingdom)}
volume = {266:5601}
journal type = {AC}
place = {United Kingdom}
year = {1977}
month = {Mar}
}