Combined NSVS/2MASS Database Search For Cool Algols and Eclipsing Subdwarf B Stars

Details Combined NSVS/2MASS Database Search For Cool Algols and Eclipsing Subdwarf B Stars Combined NSVS/2MASS Database Search For Cool Algols and Eclipsing Subdwarf B Stars

Dec 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aas...20916201k&link_type=abstract

2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, #162.01; Bulletin of the American Astronomical Society,

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Scientific paper

Combining both the Northern Sky Variability Survey (NSVS) and the Two Micron All Sky Survey (2MASS) has allowed us to search for rare types of eclipsing variable stars based upon their light curves and V, J, H and K colors. We have found ten previously unknown cool Algols and 52 new giant star (GS) eclipsing binary systems. In addition, we have found eight possible subdwarf B star (sdB) eclipsing binaries. Six are systems with periods longer than one day and contain a companion star of M2 or later. The two others have short periods and contain an earlier main sequence companion.
This research was funded by a partnership between the National Science Foundation (NSF AST-0552798) Research Experiences for Undergraduates (REU) and the Department of Defense (DoD) ASSURE (Awards to Stimulate and Support Undergraduate Research Experiences) programs.

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