NOAO >   Observing Info >   Approved Programs >   2010B-0129

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Proposal Information for 2010B-0129


PI: Nadia Zakamska, Institute for Advanced Study, zakamska@ias.edu
Address: School of Natural Sciences, Einstein Dr, Princeton, NJ 08540, USA

CoI: Jenny Greene, Princeton University
CoI: Xin Liu, Princeton University
CoI: Nicole Nesvadba, Institut d'Astrophysique Spatiale, France

Title: Is there feedback from radio-quiet quasars?

Abstract: The correlations between properties of supermassive black holes and stellar spheroids in nearby galaxies strongly suggest that there is a physical connection between these two components, even though their masses and physical scales are vastly different. There is growing evidence that radio-loud active galactic nuclei exert a strong feedback on the gas in their host galaxies, providing a possible mechanism for such connection. However, as only a minority of active galaxies are radio-loud at any given time, the radio-loud feedback may only be a part of the explanation. We propose to observe a sample of nine luminous obscured radio-quiet quasars with Gemini-N GMOS integral field unit, to map the kinematics of the ionized gas in these objects and to determine whether they exhibit any signs of black hole feedback in the form of unbound ionized gas outflow. The extreme luminosities of these quasars (intrinsic M_B<-26.9 mag) place them in the same energy output regime as that of the most powerful radio galaxies. If quasars in our sample have ionized gas outflows similar to those that have been detected in radio galaxies, we will detect them. These observations will provide a definitive test of the presence or absence of powerful black hole feedback in the radio-quiet mode.


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



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