Black Hole Growth and Host Galaxy Morphology


We use data from large surveys of the local universe (SDSS+Galaxy Zoo) to show that the galaxy–black hole connection is linked to host morphology at a fundamental level. The fraction of early-type galaxies with actively growing black holes, and therefore the AGN duty cycle, declines significantly with increasing black hole mass. Late-type galaxies exhibit the opposite trend: the fraction of actively growing black holes increases with black hole mass.

galaxies: evolution, galaxies: Seyfert, galaxies: active
Schirmer, M., et al. (2009): Black Hole Growth and Host Galaxy Morphology. Proceedings of the International Astronomical Union, 5(267). DOI: