NOAO >   Observing Info >   Approved Programs >   2012A-0367

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Proposal Information for 2012A-0367


PI: Anil Seth, University of Utah, aseth@astro.utah.edu
Address: Physics Department, 115 South 1400 East #201, Salt Lake City, UT 84105, USA

CoI: Michele Cappellari, Oxford
CoI: Davor Krajnovi\rm\acutec, European Southern Observatory
CoI: Richard McDermid, Gemini
CoI: Nadine Neumayer, European Southern Observatory
CoI: Bryan Miller, Gemini

Title: VCC 1254: A fat black hole in a wimpy galaxy?

Abstract: Low-resolution kinematic observations of the dwarf elliptical galaxy VCC 1254 suggest it may host a nearly 10 million M_\odot nuclear black hole despite having a low stellar mass (~3\times10^9 M_\odot) and velocity dispersion (\sigma=31 km/sec). If confirmed, a black hole mass of this order of magnitude makes the galaxy a clear outlier on the M_\rm BH-\sigma relation and the lowest velocity dispersion galaxy to host a black hole. We propose to obtain laser-guide star assisted adaptive optics observations with NIFS on Gemini-North to obtain kinematic observations of the VCC 1254 nucleus. These observations will test whether VCC 1254 hosts an overweight black hole by resolving its sphere-of-influence and breaking the degeneracy between nuclear M/L ratio and BH mass.


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NOAO >   Observing Info >   Approved Programs >   2012A-0367

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