Max-Planck Institut für Astronomie AGN10 - September 11 th, 2012

How do galaxies and BHs coevolve? M BH L Host ** R inf Black holes BLR Host galaxies

How do galaxies and BHs coevolve? What are the properties of a galaxy which hosts a QSO? (feedback, AGN triggering,...)

L R BLR M BH = G -1 R BLR v BLR 2 R BLR ~  L  v BLR = f FWHM CIV – MgII – H 

Redshift Gain depth through stacking! 340 SDSS images ≈ 1/2 hr 8m class telescope “Population” properties vs. individual objects

Redshift M BH ,018 QSOs 446

Redshift M BH

r-z z 0.3<z<0.4

r-z z 0.4<z<0.5

r-z z 0.5<z<0.6

r-z z 0.6<z<0.7

r-z z 0.7<z<0.8

n sersic R eff [kpc]

QSO PSF

QSO PSF

SFH

 ≡ M BH /M host increases of a factor ~7 from z=0 to z=3 CIV – MgII – H 