Gravitational Lenses and the Structure of Galaxies
Astrophysics
2011-04-15 v1
Abstract
Nearly singular isothermal mass distributions with small core radii are consistent with stellar dynamics, lens statistics, and lens models as a model for E/S0 galaxies. Models like the de Vaucouleurs model with a constant mass-to-light ratio are not. While the isothermal distributions are probably an oversimplification, E/S0 galaxies (at least in projection) must have significant amounts of dark matter on scales of an effective radius.
Cite
@article{arxiv.astro-ph/9510075,
title = {Gravitational Lenses and the Structure of Galaxies},
author = {C. S. Kochanek},
journal= {arXiv preprint arXiv:astro-ph/9510075},
year = {2011}
}
Comments
6 pages, 3 figures, uuencoded compressed postscript Paper to appear in ``Astrophysical Applications of Gravitational Lensing'' IAU Symposium 173, eds. C.S. Kochanek \& J.N. Hewitt (Kluwer: Dordrecht) 183