Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9727809 | Physica A: Statistical Mechanics and its Applications | 2005 | 12 Pages |
Abstract
The density profiles and other quantities of physical interest for spherically symmetric systems are computed by assuming that a collisionless stellar gas may relax to the non-Gaussian power-law distribution suggested by the nonextensive kinetic theory. There are two different classes of solutions. The first class behaves like a subset of the polytropic Lane-Emden spheres, whereas the second one corresponds to a transition between two different potytropic indices. Unlike the isothermal Maxwellian sphere, the total mass and sizes of both classes are finite for a large range of the nonextensive q-parameter.
Related Topics
Physical Sciences and Engineering
Mathematics
Mathematical Physics
Authors
J.A.S. Lima, R.E. de Souza,