Dark Matter Halos around Galaxies

Abstract

We present evidence that all galaxies, of any Hubble type and luminosity, bear the kinematical signature of a mass component distributed differently from the luminous matter. We review and/or derive the DM halo properties of galaxies of different luminosities and morphologies: spirals, LSBs, ellipticals, dwarf irregulars and dwarf spheroidals.

27 pages, latex, 18 figures. Review to appear in "Dark and Visible Matter in Galaxies". Proceedings of the Sesto DM1996 Conference Eds M. Persic & P. Salucci. ASP Proceedings Conference Series 1997 also available at ftp://galileo.sissa.it/users/ftp/pub/psrot/persucci.ps