Stellar Critical Parameters in the Uniform Density Approximation

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Abstract

Stellar models are calculated in the approximation of a uniform density distribution. Variational method was used for determination of the boundary of a stability loss, for stellar masses in the range from 2 up to . The effects of the general relativity had been taken into account. The equation of state in the temperature and density ranges K, g/sm had been taken from the work of Imshennik and Nadyozhin (1965). The critical parameters for the values of entropy and stellar masses differ from more accurate values, obtained using a more complucated variant of accepted density distribution, not more than 12%.

About the authors

G. S. Bisnovatyi-Kogan

Space Research Institute of the Russian Academy of Sciences; National Research Nuclear University MEPhI; Moscow Institute of Physics and Technology

Email: gkogan@cosmos.ru
Moscow, Russia; Moscow, Russia; Dolgoprudny, Russia

E. A. Patraman

Space Research Institute of the Russian Academy of Sciences; Moscow Institute of Physics and Technology

Moscow, Russia; Dolgoprudny, Russia

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