Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979svphu.127..263b&link_type=abstract
(Uspekhi Fizicheskikh Nauk, vol. 127, Feb. 1979, p. 263-296.) Soviet Physics - Uspekhi, vol. 22, Feb. 1979, p. 89-108. Translat
Astronomy and Astrophysics
Astronomy
5
Neutron Stars, Nonequilibrium Conditions, Nuclear Fusion, Stellar Envelopes, X Ray Astronomy, Chemical Composition, Gamma Ray Astronomy, Particle Diffusion, Stellar Evolution, Stellar Mass, Stellar Structure, Stellar Temperature, Supernovae, Thermodynamic Equilibrium
Scientific paper
A review is presented of theoretical concepts of properties of matter and of processes in neutron star shells and of their relation to observations. The formation of a hot neutron star and its subsequent cooling leads to the appearance of a nonequilibrium layer in which energy of up to 10 to the 48th ergs is stored. The lack of equilibrium consists of the presence of superheavy nuclei with a large neutron excess near the limit of neutron evaporation Q(n) = 0 and of free neutrons. The slow diffusion of neutrons into the interior of the star maintains the X-ray luminosity L(X) of about 10 to the 34th ergs/sec during t = 10,000 years.
Bisnovatyi-Kogan Gennadi S.
Chechetkin V. M.
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