Seven New Low-Mass Eclipsing Binaries

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Title:		Seven New Low-Mass Eclipsing Binaries
Authors:		Coughlin, Jeffrey L.; Shaw, J. Scott
Affiliation:		AA(Department of Astronomy New Mexico State University Las Cruces, NM 88003 USA) AB(Department of Physics and Astronomy University of Georgia Athens, GA 30602 USA)
Publication:		Journal of the Southeastern Association for Research in Astronomy, vol= . 1, p. 7-12
Publication Date:		09/2007
Origin:		JSARA
Keywords:		binaries: eclipsing, stars: low mass, brown dwarfs
Abstract Copyright:		(C) 2007. Southeastern Association for Research in Astronomy. All Rights Reserved.
Bibliographic Code:		2007JSARA...1....7C

Abstract

We present the discovery of seven new low-mass eclipsing binaries, their photometric light curves, and preliminary models. This nearly doubles the available data on these systems, with only nine previously known. Once radial-velocity curves are completed, physical parameters wil= l be determined with an error of less than 2-3%, thus allowing for a rigorous examination of stellar models in the lower-main sequence. Our initial analysis seems to support the current findings that low-mass star= s have greater radii than models predict, most likely due to the presence o= f strong magnetic fields.

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