Disk Mass from Large-scale Dynamics

Details Disk Mass from Large-scale Dynamics Disk Mass from Large-scale Dynamics

1997-11-27

arxiv.org/abs/astro-ph/9711335v1

Astronomy and Astrophysics

Astrophysics

3 pages including 1 figure, LaTeX with jd.sty file included, to appear in "Highlights of Astronomy, v11" ed J Andersen

Scientific paper

The radial distribution of mass in a disk galaxy is strongly constrained by its rotation curve. The separate contributions from the individual stellar populations and dark matter (DM) are not easily disentangled, however, especially since there is generally no feature to indicate where the component dominating the central attraction switches from luminous to dark matter. Here I summarize three recent thesis projects at Rutgers University which all suggest that DM has a low density in the inner parts of bright galaxies, and that most of the mass therefore resides in the disk. In addition, I present some preliminary work on the Milky Way.

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