Is There a Gravitational Stability Margin for Gaseous Disks of Galaxies

Details Is There a Gravitational Stability Margin for Gaseous Disks of Galaxies Is There a Gravitational Stability Margin for Gaseous Disks of Galaxies

Jan 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985atsir1356....1z&link_type=abstract

Astronomicheskii Tsirkulyar NO.1356/JAN02, 1985

Astronomy and Astrophysics

Astronomy

2

Scientific paper

A surface density of gas layers in outer regions of disk galaxies is in
many cases approximately equal to its marginal value for a gravitational
instability. This value is determined by the kinematical parameters of
the rotating disk of galaxies. Hence, the evolution of gas density on
the periphery of many galaxies has practically ceased.

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