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- Title
Anisotropic distribution functions for spherical galaxies.
- Authors
Zhenglu Jiang; Leonid Ossipkov
- Abstract
Abstract??A method is presented for finding anisotropic distribution functions for stellar systems with known, spherically symmetric, densities, which depends only on the two classical integrals of the energy and the magnitude of the angular momentum. It requires the density to be expressed as a sum of products of functions of the potential and of the radial coordinate. The solution corresponding to this type of density is in turn a sum of products of functions of the energy and of the magnitude of the angular momentum. The products of the density and its radial and transverse velocity dispersions can be also expressed as a sum of products of functions of the potential and of the radial coordinate. Several examples are given, including some of new anisotropic distribution functions. This device can be extended further to the related problem of finding two-integral distribution functions for axisymmetric galaxies.
- Subjects
ANGULAR momentum (Nuclear physics); NUCLEAR moments; NUCLEAR orientation; NUCLEAR induction
- Publication
Celestial Mechanics & Dynamical Astronomy, 2007, Vol 97, Issue 4, p249
- ISSN
0923-2958
- Publication type
Article
- DOI
10.1007/s10569-006-9062-5