Gamma-ray bursts from high-velocity neutron stars

Details Gamma-ray bursts from high-velocity neutron stars Gamma-ray bursts from high-velocity neutron stars

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992natur.359..514l&link_type=abstract

Nature (ISSN 0028-0836), vol. 359, no. 6395, p. 514-516.

Astronomy and Astrophysics

Astronomy

76

Gamma Ray Bursts, Neutron Stars, Radio Stars, Astronomical Models, Gamma Ray Observatory, Luminosity, Stellar Magnetic Fields

Scientific paper

It is shown here that a population of neutron stars with velocities greater than about 800 km/s can fit the gamma-ray burst distributions found by BATSE and also by the Pioneer Venus Orbiter. Two important conditions must be met: the high-velocity neutron stars should turn on as burst sources only after some time and the low-velocity neutron stars must rarely generate gamma-ray bursts. The observed correlation in pulsars between magnetic moment and velocity may provide a physical cause for the difference in bursting properties between the two populations. This model implies that the brightest bursts, with fluxes greater than about 3 x 10 exp -5 erg/sq cm/s, will be anisotropically distributed.

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