Thermal Properties of Self-Gravitating Plane-Symmetric Configuration

Details Thermal Properties of Self-Gravitating Plane-Symmetric Configuration Thermal Properties of Self-Gravitating Plane-Symmetric Configuration

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976pthph..56..818h&link_type=abstract

Progress of Theoretical Physics, Vol. 56, No. 3, pp. 818-829

Physics

5

Scientific paper

As a limiting case of rotating stars, thermal properties of infinite plane-symmetric self-gravitating gas are investigated. Such a configuration is characterized by surface density of the plane instead of stellar mass. In the Kelvin contraction, temperature of the interior decreases, if the surface density is kept constant. If the accretion of matter takes place, or if the angular momenta are transferred outward, the surface density will increase. In this case, the temperature of the interior may increase. When a nuclear burning is ignited, it is thermally unstable in most cases, even when electrons are non-degenerate. This thermal instability is one of the essential differences of the plane-symmetric configuration from the spherical star. Such instabilities are computed for different cases of nuclear fuels. This type of nuclear instability is the same phenomenon as thermal instability of a thin shell burning in a spherical star.

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