Supermassive Black Holes and Kinematics of Disc Galaxies

Understand

The statistical relations between the masses of supermassive black holes (SMBHs) in disk galaxies and the kinematic properties of their host galaxies are analyzed.

• We use the radial velocity profiles for several galaxies obtained earlier at the 6-m telescope of the Special Astrophysical Observatory of the Russian Academy of Sciences parallel with the data for other galaxies taken from the literature.
• We demonstrate that the SMBH masses correlate well with the velocities of rotation of disks at a fixed distance R \approx 1 kpc (V1), which characterize the mean density of the central region of the galaxy.
• The SMBH masses correlate appreciably weaker with the asymptotic velocity at large distances from the center and with the angular velocity at the optical radius R_{25}.