Advances in Astronomy and Space Physics, Volume 1 (2011)

On the massive disks in low surface brightness galaxies

A. S. Saburova

Sternberg Astronomical Institute of Moscow State University, Universitetskii pr., 13, 119992, Moscow, Russia

On the example of four low surface brightness galaxies we demonstrate that the mass-to-light ratio of their disks may be found from the condition of marginal gravitational stability. In this case their surface densities and halo/disk mass ratios appear to be rather typical for normal galaxies, and this does not conflict with their rotation curves.