NOAO >   Observing Info >   Approved Programs >   2010A-0197

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Proposal Information for 2010A-0197


PI: Bradley Peterson, Ohio State University, peterson@astronomy.ohio-state.edu
Address: Department of Astronomy, 140 W. 18th Avenue, Columbus, OH 43210-1173, USA

CoI: Catherine Grier, Ohio State University
CoI: Misty Bentz, UC Irvine
CoI: Kalliopi Dasyra, Caltech IPAC
CoI: Laura Ferrarese, Herzberg Institute of Astrophysics
CoI: Paul Martini, Ohio State University
CoI: Richard Pogge, Ohio State University
CoI: Linda Tacconi, MPE-Garching
CoI: Linda Watson, Ohio State University

Title: The High Mass End of the Black Hole Mass - Stellar Velocity Dispersion Relation in AGNs

Abstract: The M(BH)-sigma relationship, the strong correlation between central black hole mass and stellar bulge velocity dispersion, is not only of great importance for understanding black hole demographics and galaxy dynamics, it is has great practical importance in providing the fundamental mass scale for all quasar black hole mass estimates by establishing the zero-point for reverberation-based black hole masses in AGNs. We propose to continue our Gemini/NIFS investigation of the under-populated high-mass end of the M(BH)-sigma relationship by measuring the bulge velocity dispersion in four additional AGNs. These four PG quasars are among the seven most massive black holes measured by reverberation: of the remaining three, one is at a declination inaccessible for the AO system, one is a semester B target, and we already have obtained and published a NIFS velocity dispersion measurement for the remaining source.


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NOAO >   Observing Info >   Approved Programs >   2010A-0197

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