Abstract

The presence and distribution of dark matter in elliptical galaxies is expected to be constrained not only by the properties of the overall force field (as could be traced by an HI rotation curve), but also by the density and velocity dispersion profile of the luminous stellar component, since stellar orbits are determined by the total self- consistent potential. In order to study these dynamical constraints, we have constructed self-consistent, two-component, spherically symmetric models of elliptical galaxies, under the assumption that the distribution functions for the dark and luminous components are of the same general analytic form.

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