Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991ap%26ss.180..185t&link_type=abstract
Astrophysics and Space Science (ISSN 0004-640X), vol. 180, no. 2, June 1991, p. 185-200.
Astronomy and Astrophysics
Astronomy
Black Holes (Astronomy), Neutron Stars, Pulsars, Stellar Interiors, Stellar Rotation, Accretion Disks, Pulsed Radiation, Quarks, Stellar Evolution
Scientific paper
The phenomenon of pulsars is considered as the evidence for existence of black holes in neutron and quark stars. Within the framework of the degenerated star model with black-hole interior the existence of millisecond pulsars with P less than 0.5 ms and single pulsars with negative derivative of the period were predicted. The anisotropic accretion of neutron (or quark) star matter on to a rotating black hole leads to the formation of directed radiation, which makes 'heat spots' at the surface which explain the nature of the pulsating radiation and the complicated structure of impulses. This model gives both the mechanism of self-acceleration of degenerated star rotation producing millisecond pulsars and also the mechanism of significant deceleration of rotation, leading to long-periodic X-ray pulsars. The black hole produces high densities and temperatures of the degenerated star mass that gradually transforms the neutron star into a quark star.
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