NOAO >   Observing Info >   Approved Programs >   2010B-0247

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Proposal Information for 2010B-0247


PI: Stephane Vennes, Astronomicky ustav, AV CR, vennes@sunstel.asu.cas.cz
Address: Stellar Department, Fricova 298, Ondrejov 251 65, Czech Republic

CoI: Adela Kawka, Astronomicky ustav, AV CR
CoI: Peter Nemeth, Florida Institute of Technology

Title: Properties of hot subluminous stars in the GALEX survey

Abstract: We propose to measure the properties of subluminous stars from a selection based on GSC2.3.2 optical magnitudes, GALEX ultraviolet photometry, and 2MASS infrared photometry. An exploratory set of spectra obtained at ESO and KPNO during twilight observations uncovered several previously unknown bright, hot subluminous stars. Our new selection of ~100 objects specifically targets high-proper motion stars with colourimetric properties typical of hot white dwarf and subdwarf stars. Ultimately, our sample will contribute to complete, magnitude-limited sample of these objects and help in building their respective luminosity functions.


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 >   2010B-0247

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