Star Formation in Viscous Galaxy Disks

Details Star Formation in Viscous Galaxy Disks Star Formation in Viscous Galaxy Disks

2000-09-20

arxiv.org/abs/astro-ph/0009330v1

Astronomy and Astrophysics

Astrophysics

2 pages, 2 figures. To appear in ASP Conference Series "Galaxy Disks and Disk Galaxies", eds. J.G. Funes S.J. and E.M. Corsini

Scientific paper

The Lin and Pringle model (1987) of galactic disk formation postulates that if star formation proceeds on the same timescale as the viscous redistribution of mass and angular momentum in disk galaxies, then the stars attain an exponential density profile. Their claim is that this result holds generally: regardless of the disk galaxy's initial gas and dark matter distribution and independent of the nature of the viscous processes acting in the disk. We present new results from a set of 2D hydro-simulations which investigate their analytic result.

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