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

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jsara...1...13k&link_type=abstract

Journal of the Southeastern Association for Research in Astronomy, vol= . 1, p. 13-16

Astronomy and Astrophysics

Astronomy

3

Binaries, Binaries: Eclipsing

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 10 new cool algols as well as 52 new giant star (GS) eclipsing binary systems. Using the two surveys we have found 8 new 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.=20 The 2 others have short periods and contain an earlier main sequence companion.

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