Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21545203s&link_type=abstract
American Astronomical Society, AAS Meeting #215, #452.03; Bulletin of the American Astronomical Society, Vol. 42, p.461
Astronomy and Astrophysics
Astronomy
Scientific paper
The study of faint ultraviolet photometry is somewhat limited by the dearth of faint ultraviolet standard stars. In an effort to improve this situation, we present a uniform catalog of eleven new faint (u 17) ultraviolet standard stars. High-precision photometry of these stars has been taken from the Sloan Digital Sky Survey and Galaxy Evolution Explorer and combined with new data from the Swift Ultraviolet Optical Telescope to provide photometric measures extending from the Near Infrared to the Far Ultraviolet. These stars were chosen because they are known to be hot (20,00-50,000 degrees) DA white dwarfs with published Sloan spectra that should be photometrically stable. This allows us to compare the photometry to models of pure hydrogen atmospheres to provide tight constraints on the temperature and foreground reddening of the white dwarfs. The comparative simplicity of these systems and the new constraints will allow future investigations to more confidently calibrate additional filters to the WD system.
Hoversten Erik A.
Landsman Wayne
Roming Peter W. A.
Siegel Michael
Vanden Berk Daniel E.
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