NOAO >   Observing Info >   Approved Programs >   2009A-0085

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Proposal Information for 2009A-0085


PI: Jorg-Uwe Pott, W. M. Keck Observatory, jpott@keck.hawaii.edu
Address: headquarters, 65-1120 Mamalahoa Hwy, Kamuela, HI 96743

CoI: Julien Woillez, W. M. Keck Observatory
CoI: Matthew Malkan, University of California Los Angeles
CoI: Rainer Schodel, Instituto de Astrofisica de Andalucia, ESP
CoI: Moshe Elitzur, University of Kentucky

Title: Studying Seyfert AGN at highest angular resolution with the Keck Interferometer

Abstract: We propose to conduct a pioneering interferometric study in the near- infrared of a sample of nearby Seyfert galaxies to probe the size, morphology and relative flux contributions of the dust, stars and the central engine itself in the objects. The Keck Interferometer is currently the only NIR-long baseline interferometer in the world capable of spatially resolving pc-scales in a decent sample of AGN. Our proposed sample for 2009A builds on the previous KI fringe detection on NGC 4151, and covers the complete range from activity Type 1 to Type 2 AGN and several orders of magnitude in absolute brightness, thus offering for the first time a means to probe and compare systematically the immediate surroundings of AGN. The data will challenge the geometry based unification schemes in an unprecedented manner.


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 >   2009A-0085

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