Using black hole masses which span 105-1010M⊙, the distribution of galaxies in the (host spheroid stellar mass)-(black hole mass) diagram is shown to be strongly bent. While the core-Sersic galaxies follow a near-linear relation, having a mean Mbh=Msph mass ratio of ~0.5%, the Sersic galaxies follow a near-quadratic relation. 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 a log-linear Mbh-σ relation.

ABSTRACT
1. THE Mbh-σ DIAGRAM
2. THE Lsph-σ AND Msph-σ DIAGRAM
3. THE Mbh-Msph DIAGRAM
4. SUMMARY
REFERENCES

• Alister W. Graham(Centre for Astrophysics and Supercomputing, Swinburne University of Technology)
• Nicholas Scott(Centre for Astrophysics and Supercomputing, Swinburne University of Technology/Sydney Institute for Astronomy, School of Physics, University of Sydney)
• James M. Schombert(Department of Physics, University of Oregon)