Dynamical Constraints on Disk Galaxy Formation

Details Dynamical Constraints on Disk Galaxy Formation Dynamical Constraints on Disk Galaxy Formation

1999-09-27

arxiv.org/abs/astro-ph/9909452v1

2000, in Galaxy Dynamics: from the Early Universe to the Present, eds. Combes, F., Mamon, G.A., & Charmandaris, V. (San Franci

Astronomy and Astrophysics

Astrophysics

8 pages, ASP LaTeX. Invited review for Galaxy Dynamics: from the Early Universe to the Present, eds. Combes, Mamon, & Charmand

Scientific paper

The rotation curves of disk galaxies exhibit a number of striking regularities. The amplitude of the rotation is correlated with luminosity (Tully-Fisher), the shape of the rotation curve is well predicted by the luminous mass distribution, and the magnitude of the mass discrepancy increases systematically with decreasing centripetal acceleration. These properties indicate a tight connection between light and mass, and impose strong constraints on theories of galaxy formation.

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