This article gives a further study on the disk-driven precession model that explains the jet precession in active galactic nuclei with a single black hole and its disk,focusing on the impact of black hole mass on precession.

The single black hole-accretion disk precession model or disk-driven precession model is discussed carefully; Two correlations have been raised and sustained by observational values, which are precession period - absolute magnitude correlation and black hole mass - precession cone semi-angle correlation; A comparison between disk-driven bl.