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Title: Gamma-ray bursts from the accretion of solid bodies onto high-velocity Galactic neutron stars

We propose a simple model for the gamma-ray bursts based on high- velocity Galactic neutron stars that have accretion disks. The latter are formed from a mixture of material from the supernova shell and that ablated from a pre-supernova binary companion. Accretion onto the neutron star from this disk when the disk is still largely gaseous may result in a soft gamma-ray repeater phase. Much later, after the neutron star has moved away from its birthplace, solid bodies form in the disk, and some are perturbed into hitting the neutron star to create gamma-ray bursts. This model makes several predictions that are consistent with the observations. The observed combination of a high degree of isotropy on the sky coupled with the observed value of < V/V{sub max}> is not, at first glance, predicted, but is not impossible to attain in our model.
Authors:
;
Publication Date:
OSTI Identifier:
10113657
Report Number(s):
LA-UR--93-4340; CONF-9310252--4
ON: DE94005006
DOE Contract Number:
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 2. gamma-ray burst workshop,Huntsville, AL (United States),20-22 Oct 1993; Other Information: PBD: [1993]
Research Org:
Los Alamos National Lab., NM (United States)
Sponsoring Org:
Department of Defense, Washington, DC (United States);National Aeronautics and Space Administration, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; NEUTRON STARS; COSMIC GAMMA BURSTS; STAR ACCRETION; SUPERNOVAE; GALAXIES 661300; OTHER ASPECTS OF PHYSICAL SCIENCE