NOAO >   Observing Info >   Approved Programs >   2003B-0013

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Proposal Information for 2003B-0013


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

CoI: Iskra Strateva, Princeton University
CoI: Laura Ferrarese, Rutgers University
CoI: Richard W. Pogge, The Ohio State University
CoI: Michael A. Strauss, Princeton University

Title: Masses of Supermassive Black Holes in Active Galactic Nuclei with Double- Peaked Line Profiles

Abstract: We propose to estimate the masses of supermassive black holes in the nuclei of five newly identified members of a relatively rare, but potentially very important subclass of active galactic nuclei, namely those in which the broad Balmer emission lines are strongly double- peaked. This will provide a critical test of the hypothesis that these are massive objects with relatively low accretion rates and represent one extreme of the correlated AGN properties that define Boroson-Green Eigenvector 1. Mass estimates will be obtained by measuring the host- galaxy bulge velocity dispersion for each galaxy and by making use of the very tight correlation between velocity dispersion and black-hole mass. Stellar velocity dispersions will be measured from high S/N ratio (~ 50), moderate resolution (~ 5000) long-slit spectra of the Ca II absorption triplet.


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NOAO >   Observing Info >   Approved Programs >   2003B-0013

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