A Catalog of 1022 Bright Contact Binary Stars

Details A Catalog of 1022 Bright Contact Binary Stars A Catalog of 1022 Bright Contact Binary Stars

2005-09-27

arxiv.org/abs/astro-ph/0509819v1

Astron.J.131:621-632,2006

Astronomy and Astrophysics

Astrophysics

26 pages, 12 figures, accepted for publication in AJ

Scientific paper

10.1086/498016

In this work we describe a large new sample of contact binary stars extracted in a uniform manner from sky patrol data taken by the ROTSE-I telescope. Extensive ROTSE-I light curve data is combined with J, H, and K band near-infrared data taken from the Two Micron All-Sky Survey (2MASS) to add color information. Contact binaries candidates are selected using the observed period-color relation. Candidates are confirmed by visual examination of the light curves. To enhance the utility of this catalog, we derive a new J-H period-color-luminosity relation and use this to estimate distances for the entire catalog. From these distance estimates we derive an estimated contact binary space density of (1.7 +/- 0.6) x 10^-5 pcs^-3.

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