Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981afz....17..349b&link_type=abstract
(Astrofizika, vol. 17, Apr.-June 1981, p. 349-358.) Astrophysics, vol. 17, no. 2, Oct. 1981, p. 193-199. Translation.
Astronomy and Astrophysics
Astrophysics
Energy Transfer, Hot Stars, Neutron Stars, Stellar Rotation, White Dwarf Stars, Magnetic Dipoles, Stellar Evolution, Stellar Luminosity, Thermal Radiation
Scientific paper
Balek and Minasian (1981) presented a qualitative investigation of neutron stars, demonstrating that the deformation energy of these superdense stars is proportional to the fourth power of the angular velocities. As an extension of their study, the thermal energy and neutrino luminosity of neutron stars, as well as the temperature growth of their surface layers are investigated. Problems in describing the thermal evolution of rotating neutron stars are discussed, with particular emphasis on the case where the radiation is decelerated by magnetic dipole radiation. The deformation energy of neutron stars makes the main contribution to the total energy release during several hundred years; if there is a pion condensate in the matter of a neutron star, this process may last for about 10,000 years, but for most of this time, the thermal radiation remains unobservable. The luminosity due to the release of the deformation energy of white dwarfs, obtained when neutrino losses are ignored, is about 0.08/tau(9) solar L, where tau(9) is the time in units of 10 to the 9th years, during which the white dwarf preserves a nearly maximum angular velocity.
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