Scalar Potential Model of Galaxy Central Mass and Central Velocity Dispersion

The galaxy central mass Mc and central velocity dispersion σc have been found to correlate with large scale galaxy parameters for samples of galaxies with a limited range of characteristics. A scalar potential model (SPM) that derived from considerations of galaxy clusters, of redshift, of discrete redshift, of HI rotation curves (RCs) of spiral galaxies and of RC asymmetry is applied to central region parameters. The σc and Mc are found to correlate to the host galaxy's and neighboring galaxy's B band luminosity. The sample included galaxies with rising, flat and declining RCs; galaxies with a wide range of characteristics; and galaxies excluded from samples of other studies of σc relationships. The equations have the same form as the SPM equations for the parameters of the HI RCs. Because the SPM is consistent with Mc and σc observations of the sample galaxies, the Sources and Sinks act as monopoles at the center of the galaxies around them. This suggests the outward scalar potential force of a Source holds the Mc from collapse into a supermassive black hole. galaxies:fundamental parameters – galaxies:kinematics and dynamics – galax-ies:nuclei – cosmology:theory