The coevolution of supermassive black holes and galaxies in luminous AGN over a wide range of redshift

Understand

It is well known that supermassive black holes (SMBHs) and their host galaxies co-evolve.

• A manifestation of this co-evolution is the correlation that has been found between the SMBH mass, M$_{BH}$, and the galaxy bulge or stellar mass, M$_*$.
• The cosmic evolution of this relation, though, is still a matter of debate.
• In this work, we examine the M$_{BH}-$M$_*$ relation, using 687 X-ray luminous (median $\rm log\,[L_{X,2-10keV}(ergs^{-1})]=44.3$), broad line AGN, at $\rm 0.2<z<4.0$ (median $\rm z\approx 1.4$) that lie in the XMM-{\it{XXL}} field.