The BH mass of nearby QSOs A comparison of the bulge luminosity and virial methods M. Labita, A. TrevesUniversità dell’Insubria, Como, Italy R. FalomoINAF, Osservatorio Astronomico di Padova, Italy M. UslenghiINAF-IASF, Milano, Italy
2 The virial method Elliptical galaxies SMBHs THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
3 The virial method (AGN) R BLR : reverberation mapping THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
4 The virial method (3) BRL radius Nuclear luminosity Pian E., Falomo R., Treves A. 2005, MNRAS, 361, 919 THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
5 M BH and global properties of the host galaxy Locally: Velocity dispersion ; Galaxy Luminosity: Coevolution of host galaxies and SMBHs THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
6 M BH for close-by quasars Virial method Host galaxy luminosity method Sample:HST WFPC2 images HST FOS spectra THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
7 The sample 30 QSOs 18 RLQs 12 RQQs 0.1< z <0.6 THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
8 The spectra Continuum subtracted rest-frame spectra C IV emission lines: FWHM determination THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
9 BH mass comparison f=1.3f=√3/2 THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
10 Main results M BH – L bulge correlation obtained locally can be extrapolated to z ~ 0.4 f ~ 1.3 i.e. disc-like BLR geometry with inclination angles 12° < i < 48° THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
11 FWHM distribution _____ observed FWHM cumulative distribution expected cumulative distribution in a disc-like BLR geometry picture THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
12 QSOs inclination angles Kolmogorov – Smirnov test of compatibility: 12° < i < 48° THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
13 QSOs at high z From Falomo et al THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi
14 ESO 3.6m + EFOSC2 THE BH MASS OF NEARBY QSOs – M. Labita, A. Treves, R. Falomo, M. Uslenghi QSOs at high z: spectra