Low-mass x-ray binaries and gamma-ray bursts

Details Low-mass x-ray binaries and gamma-ray bursts Low-mass x-ray binaries and gamma-ray bursts

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991aipc..265..126l&link_type=abstract

Gamma-ray bursts. AIP Conference Proceedings, Volume 265, pp. 126-129 (1991).

Physics

Gamma-Ray Sources, Gamma-Ray Bursts, X-Ray Binaries, Neutron Stars, Faint Blue Stars, White Dwarfs, Degenerate Stars, Nuclei Of Planetary Nebulae

Scientific paper

More than twenty years after their discovery,1 the nature of gamma-ray burst sources (GRBs) remains mysterious. The remarkable results from BATSE experiment aboard the Compton Observatory show however that most of the sources of gamma-ray bursts cannot be distributed in the galactic disc. The possibility that a small fraction of sites of gamma-ray bursts is of galactic disc origin cannot however be excluded. We point out in this paper that large numbers of neutron-star binaries with orbital periods P~10 hr and M dwarf companions of mass ~0.2-0.3 Msolar are a natural result of the evolution of low-mass x-ray binaries (LMXBs). The numbers and physical properties of these systems suggest that some gamma-ray burst sources may be identified with this endpoint of LMXB evolution. We suggest an observational test of this hypothesis.

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