Authors: Alister W. Graham, Nicholas Scott, James Schombert
Abstract:Using black hole masses which span 105 to 1010 solar masses, the distribution of galaxies in the (host spheroid stellar mass)-(black hole mass) diagram is shown to be strongly bent. While the core-Sérsic galaxies follow a near-linear relation, having a mean Mbh/Msph,* mass ratio of ~0.5%, the Sérsic galaxies follow a near-quadratic relation: MBH ∝ Msph,*2.22±0.58. This is not due to offset pseudobulges, but is instead an expected result arising from the long-known bend in the Msph,*-σ relation and the log-linear MBH-σ relation.