Gamma-ray bursts and cosmic rays from accretion-induced collapse

Details Gamma-ray bursts and cosmic rays from accretion-induced collapse Gamma-ray bursts and cosmic rays from accretion-induced collapse

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...388..164d&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 388, March 20, 1992, p. 164-170. Research supported by USIBSF.

Mathematics

Logic

56

Accretion Disks, Cosmic Rays, Gamma Ray Bursts, Gravitational Collapse, Neutron Stars, White Dwarf Stars, Stellar Envelopes, Stellar Evolution, Stellar Mass

Scientific paper

It is shown that the birth of naked or nearly naked neutron stars in accretion-induced collapse or in the bare collapse of white dwarfs can produce cosmological gamma-ray bursts and can provide the required injection rate of cosmic rays into the interstellar space. It is estimated that most of the e(+)e(-) pairs annihilate in flight on a short time scale in the vicinity of the neutron star. It is shown that the gamma-ray bursts, the 0.511 MeV Galactic annihilation radiation, and the cosmic rays exclude the possibility that the large uncertainties in the Galactic pulsar birthrate and the Galactic SN II explosion rate would allow a significant contribution to the pulsar birthrate from naked or nearly naked neutron star formation. The upper bound on the Galactic birthrate of naked or nearly naked neutron stars of less than 1 in 1000 yr makes it very unlikely that a neutrino burst unaccompanied by optical emission from the birth of a naked or nearly naked neutron star will be detected in the near future by underground neutrino telescopes.

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