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Properties of M31. V: 298 Eclipsing Binaries from PAndromeda

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arxiv 1411.1115 v1 pith:N234CXFE submitted 2014-11-05 astro-ph.SR

Properties of M31. V: 298 Eclipsing Binaries from PAndromeda

C.-H. Lee , J. Koppenhoefer , S. Seitz , R. Bender , A. Riffeser , M. Kodric , U. Hopp , J. Snigula
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C. Goessl R.-P. Kudritzki W. Burgett K. Chambers K. Hodapp N. Kaiser C. Waters
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classification astro-ph.SR
keywords candidatesdetachedeclipsingbinariesbinarydeterminealgorithmapply
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The goal of this work is to conduct a photometric study of eclipsing binaries in M31. We apply a modified box-fitting algorithm to search for eclipsing binary candidates and determine their period. We classify these candidates into detached, semi-detached, and contact systems using the Fourier decomposition method. We cross-match the position of our detached candidates with the photometry from Local Group Survey (Massey et al. 2006) and select 13 candidates brighter than 20.5 magnitude in V. The relative physical parameters of these detached candidates are further characterized with Detached Eclipsing Binary Light curve fitter (DEBiL) by Devor (2005). We will followup the detached eclipsing binaries spectroscopically and determine the distance to M31.

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