Investigating the Black Hole - Dark Matter Halo Connection in a New Sample of Local Active Galactic Nuclei

Details Investigating the Black Hole - Dark Matter Halo Connection in a New Sample of Local Active Galactic Nuclei Investigating the Black Hole - Dark Matter Halo Connection in a New Sample of Local Active Galactic Nuclei

Jan 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012aas...21924325m&link_type=abstract

American Astronomical Society, AAS Meeting #219, #243.25

Astronomy and Astrophysics

Astronomy

Scientific paper

Super-massive black holes (SMBHs) seem to be fixtures in the nuclei of nearly all galaxies, yet an understanding of the link between SMBHs and their hosts remains elusive. The correlation between SMBH mass and bulge stellar velocity dispersion first led to ideas of SMBH-galaxy coevolution, while recent work has highlighted the possibility that SMBHs coevolve with their hosts on scales well beyond the bulge. We investigate the relationship between SMBH mass and host dark matter halo mass in an HI-selected sample of Type 1 active galactic nuclei, for which virial SMBH mass estimation techniques apply. In agreement with previous studies, we find a correlation between SMBH mass and halo dynamical mass, albeit with significant scatter. Then, in conjunction with measurements drawn from the literature, we assess the dependence of the SMBH-halo mass relationship on galaxy properties such as HI mass, luminosity, and morphology. The results of residual and principal component analyses on this joint sample may hint at a new interpretation of observed SMBH-halo mass relations.

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