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Paper: Mass Profiles of Elliptical Galaxies
Volume: 197, XVth IAP Meeting Dynamics of Galaxies: From the Early Universe to the Present
Page: 205
Authors: Magorrian, S. J.
Abstract: I apply constant-anisotropy spherical dynamical models to a sample of 18 round ellipticals to look for evidence of dark halos. All 18 lie along a Tully--Fisher relation parallel to that for spirals, but fainter at given vc by about 1 mag. By constructing more general, flattened models, I show there is a degeneracy between anisotropy and flattening, and discuss its implications.
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