The Search For Low-Mass, Red Dwarf Eclipsing Binary Stars and the Photometric Study of Two New Systems

Details The Search For Low-Mass, Red Dwarf Eclipsing Binary Stars and the Photometric Study of Two New Systems The Search For Low-Mass, Red Dwarf Eclipsing Binary Stars and the Photometric Study of Two New Systems

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21541704c&link_type=abstract

American Astronomical Society, AAS Meeting #215, #417.04; Bulletin of the American Astronomical Society, Vol. 42, p.271

Mathematics

Logic

Scientific paper

About 70% of the stars in the Galaxy are thought to be low-mass, red dwarfs. In addition, about half of the Galaxy's stars are believed to be members of binary systems.
Logically, there should be many examples of red dwarf binaries, and some of these should exhibit eclipses. Eclipsing binary stars are important because they provide the most direct determination of a star's physical parameters, such as mass and radius. Yet, we do not find many eclipsing binary stars made up of low-mass, red dwarf stars. To date only a handful of systems have been discovered and studied.
In an effort to increase the number of known cases, the All-Sky Automated Survey database was searched to determine candidate stars for follow up observations. I will discuss the photometric study of two red dwarf eclipsing binary systems found in this way. Three-color VRI photometry and preliminary theoretical models have been produced for these two systems to estimate most of the physical parameters of these stars, except for mass, which would also require radial velocity data. This work was funded by the NASA Missouri Space Grant Consortium.

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