Anisotropic and inhomogeneous S-type Riemann ellipsoids inside spheroidal halos. II

Details Anisotropic and inhomogeneous S-type Riemann ellipsoids inside spheroidal halos. II Anisotropic and inhomogeneous S-type Riemann ellipsoids inside spheroidal halos. II

Jul 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ap.....49..306a&link_type=abstract

Astrophysics, Volume 49, Issue 3, pp.306-319

Astronomy and Astrophysics

Astrophysics

Galaxies, Halo, Anisotropy

Scientific paper

Classical S-type Riemann ellipsoids are generalized taking a Ferrers-type inhomogeneity in the mass distribution, a three-dimensional anisotropy in the dispersion in the velocities, and the gravitation of a spherical halo into account. A Ferrers inhomogeneity in the mass distribution does not affect the equilibrium conditions for the ellipsoids, but only changes the numerical coefficients in the equilibrium parameters. An anisotropy in the dispersion in the velocities does change the equilibrium conditions, expanding or contracting the region in which embedded ellipsoids exist. A halo extends this region in all cases.

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