The effect of radial viscous force on the stability of a thin accretion disk : Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039 & Huazhong Normal University
Our derived dispersion relation for a thin, isothermal disk indicates that radial viscous force tends to stabilize the disk. This may be explained by the dissipative effect on the energy of the wave propagation. It is also shown that the introduction of radial viscous force will not give rise to any new mode.