The angular-momentum distribution in axisymmetrical galaxies

Astronomy Reports - Tập 45 - Trang 751-754 - 2001
B. P. Kondratyev1
1Udmurtia State University, Izhevsk, Russia

Tóm tắt

We investigate the angular-momentum distribution in a classical homogeneous Maclaurin spheroid. An exact formula for the distribution as a function of the mass of a cylindrical column in the spheroid is obtained in both integral and differential forms. This expression is used to calculate the angular-velocity distributions in galaxies evolving from initially spheroidal configurations to steady-state configurations with observed density distributions.

Tài liệu tham khảo

D. J. Crampin and F. Houle, Astrophys. J. 40, 99 (1964). B. A. Vorontsov-Vel'yaminov, Extragalactic Astronomy [in Russian] (Nauka, Moscow, 1978). L. M. Ozernoi, Astron. Tsirk., No. 407 (1967). V. A. Antonov, in Kinematics and Dynamics of Stellar Systems [in Russian] (VINITI, Moscow, 1968). J.-L. Tassoul, Theory of Rotating Stars (Princeton Univ. Press, Princeton, 1979; Mir, Moscow, 1982). B. M. Yavorskii and A. A. Detlaf, Handbook of Physics [in Russian] (GIFML, Moscow, 1963). B. P. Kondratyev, Dynamics of Ellipsoidal Gravitating Figures [in Russian] (Nauka, Moscow, 1989).