NOAO >   Observing Info >   Approved Programs >   2013B-0216

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Proposal Information for 2013B-0216


PI: Martin Elvis, Harvard-Smithsonian Center for Astrophysics, elvis@cfa.harvard.edu
Address: 60 Garden Street, Cambridge, MA 02138, USA

CoI: Jonathan McDowell, Harvard-Smithsonian Center for Astrophysics
CoI: Martin Ward, University of Durham
CoI: Hermine Landt, University of Durham

Title: Quasar SEDs - 'Reaching the Peak'

Abstract: This aim of this proposal is to estimate the black hole masses for a sample of 6 quasars, selected in a redshift range such that the H-beta line falls in the J-band and H-alpha in H-band (and as a bonus the forbidden narrow [SIII] line is in the K-band). We will use of the profiles of the Balmer lines to estimate black hole masses; this is a tried and tested technique. These redshifts are ideal for SED studies, since the peak of the output energy emission appears in the observable region (unlike the situation for low-z AGN). Second, they all have X-ray fluxes sufficient for detailed modeling (unlike the situation for high-z AGN). We will combine the black hole mass estimates, with our state-of-the-art models, to directly measure the bolometric luminosity, and to strongly constrain the distinct components that make up the overall SED. This will represent a study that exploits the potential of both the best multi-frequency data, and the most recent energy conserving SED models.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2013B-0216

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