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Г.С. Бисноватый-Коган
Цикл
статей: 'Релятивистские звездные скопления'
Статьи:
1.
Bisnovatyi-Kogan, Gennady S.; Merafina, Marco; Vaccarelli, Maria Rosaria; Spherically Symmetric Stellar
Clusters with Anisotropy and Cutoff Energy in Momentum Distribution. I. The
Newtonian Regime; The Astrophysical Journal, Volume
703, Issue 1, pp. 628-632 (2009).
Abstract
We construct
numerical models of spherically symmetric Newtonian stellar clusters with
anisotropic distribution functions. These models generalize solutions obtained
earlier for isotropic Maxwellian distribution
functions with an energy cutoff and take into account distributions with
different levels of anisotropy.
2. Bisnovatyi-Kogan,
Gennady S.; Merafina, Marco; Vaccarelli,
Maria Rosaria; Spherically Symmetric Stellar Clusters with Anisotropy and
Cutoff Energy in Momentum Distribution. II. The Relativistic Regime; The Astrophysical Journal, Volume 709, Issue 2, pp.
1174-1182 (2010).
Abstract
We numerically
construct models of spherically symmetric relativistic stellar clusters with
anisotropic distribution functions. Newtonian solutions obtained in Paper I are generalized as isotropic Maxwellian
ones with energy cutoff in their distribution function. We consider
distributions with different levels of anisotropy and discuss some general
characteristics of the models.
3. Merafina, Marco; Bisnovatyi-Kogan, Gennady S.; Vaccarelli, Maria Rosaria; Relativistic Stellar Clusters:
Equilibrium Models with Anisotropic Momentum Distribution and Dynamic and
Thermodynamic Stability of Isotropic Models; in Astrophysics and Cosmology
after Gamow: Proceedings of the 4th Gamow International Conference on
Astrophysics and Cosmology After Gamow and the 9th Gamow Summer School 'Astronomy
and Beyond: Astrophysics, Cosmology, Radio Astronomy, High Energy Physics and
Astrobiology'; AIP Conference Proceedings, Volume 1206, pp. 399-416 (2010).
Abstract
Models of
spherically symmetric relativistic stellar clusters with anisotropic
distribution functions in relativistic regime are described by using Maxwellian distribution function with energy cutoff. We
consider distributions with different levels of anisotropy and discuss some
general characteristics of the models. In addition, we analyze dynamic and thermodynamic stability
of isotropic models still described by Maxwellian
distribution function with energy cutoff and we find critical values of the
onset of instability.