The Black Hole Mass - Galaxy Bulge Relationship for QSOs in the SDSS DR3

Details The Black Hole Mass - Galaxy Bulge Relationship for QSOs in the SDSS DR3 The Black Hole Mass - Galaxy Bulge Relationship for QSOs in the SDSS DR3

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005rmxac..23..122s&link_type=abstract

The Ninth Texas-Mexico Conference on Astrophysics (Eds. S. Torres-Peimbert & G. MacAlpine) Revista Mexicana de Astronomía y Astr

Physics

Black Hole Physics, Galaxies: Active, Quasars: General

Scientific paper

We investigate the relationship between black hole mass, MBH, and host galaxy velocity dispersion, σ*, for QSOs in Data Release 3 of the Sloan Digital Sky Survey. For redshifts z < 0.5, our results agree with the MBH - σ* relationship for nearby galaxies. For 0.5 < z < 1.19, the measured σO III and σO II are narrower on average than what we expect from the MBH - σ* relationship by ˜ 0.13 dex. Pending analysis of selection effects, we consider this an upper limit for evolution of the MBH - σ* relationship between redshift z ≃ 1 and the present. Within this limit, this suggests either that black holes and bulges grow concurrently or that both black holes and bulges have completed their growth by redshift z ≈ 1. This material will be presented in more detail in Salviander et al. (2006).

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