Other
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977apj...215..914l&link_type=abstract
Astrophysical Journal, Part 1, vol. 215, Aug. 1, 1977, p. 914-918.
Other
13
Astronomical Models, Globular Clusters, Gravitational Effects, Stellar Evolution, Equilibrium, Gas Mixtures, Gravitational Collapse, Isothermal Processes, Stellar Gravitation
Scientific paper
Time-dependent numerical calculations by Larson (1970) and by Saito and Yoshizawa (1976) for the idealized conditions of a gas within a rigid sphere tend to confirm the general nature of the gravothermal catastrophe postulated by Lynden-Bell and Wood (1968) in connection with the evolution of a nonequilibrium system involving a self-gravitating gas. The reported investigation is concerned with an extension of two-component equilibrium models of Saito and Yoshizawa for all mixtures of heavy and light particles as a basis for an improved identification of the destabilizing effects of mass apportionment. It is pointed out that a full understanding of the gravothermal instability may be important in studying the question of the endpoint of the collapse of globular clusters and dense galactic nuclei.
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