Study of homogeneous evolutionary models of stellar systems

Details Study of homogeneous evolutionary models of stellar systems Study of homogeneous evolutionary models of stellar systems

Jun 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975azh....52..498a&link_type=abstract

Astronomicheskii Zhurnal, vol. 52, May-June 1975, p. 498-504. In Russian.

Other

Astronomical Models, Galactic Evolution, Galactic Rotation, Relaxation Time, Stellar Systems, Elliptical Galaxies, Spiral Galaxies, Stellar Mass, Unsteady State

Scientific paper

Temporal changes are investigated in homogeneous spheroidal models of stellar systems consisting of identical stars and having initial masses between 1 billion and 1 trillion solar masses, initial densities between 0.05 and 100 solar masses per cu pc, and initial semiaxis attitudes between 0.6 and 0.9. It is shown that all the calculated models condense during the evolutionary process. The evolution of some models is found to be characterized by a decrease in contraction, while that of others is found to be characterized by an increase in contraction as a function of the angular momentum carried away during the relaxation time. Lifetimes of the models from the initial to final states as well as the degree of contraction for a characteristic time period are shown to depend only on the initial contraction.

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