Secular Evolution and a Non-evolving Black-hole-to-galaxy Mass Ratio in the Last 7 Gyr
We present new constraints on the ratio of black hole (BH) mass to total galaxy stellar mass at 0.3 z 0.9 for a sample of 32 type-1 active galactic nuclei (AGNs) from the XMM-COSMOS survey covering the range M BH ~ 107.2 - 8.7 M sun. Virial M BH estimates based on Hβ are available from the COSMOS Magellan/IMACS survey. We use high-resolution
Cisternas, Mauricio et al.
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2011