Mechanisms of hard X-ray emission from accreting neutron stars

Details Mechanisms of hard X-ray emission from accreting neutron stars Mechanisms of hard X-ray emission from accreting neutron stars

Jan 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26as...97..265k&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 97, no. 1, p. 265-267.

Astronomy and Astrophysics

Astronomy

9

Accretion Disks, Emission Spectra, Neutron Stars, Stellar Mass Accretion, X Ray Binaries, Annihilation Reactions, Black Holes (Astronomy), Stellar Evolution, Stellar Models

Scientific paper

A brief overview of known mechanisms that allow accreting neutron stars to be powerful emitters of hard (about 100 keV) X-rays is presented. The inner boundary condition for disks, Compton cooling of neutron star disks, and nonthermal processes and 'the annihilator(s)' are discussed. It is concluded that while several accreting neutron stars are now known to emit hard X-rays, and at least two quite different theoretical models predicting such emission are known, it is very likely that, among sources of unknown nature, an object observed to emit very hard X-rays will prove to be a black hole.

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