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Application of the Direct Distance Estimation procedure to eclipsing binaries in star clusters

Published online by Cambridge University Press:  26 February 2013

E. F. Milone  and
S. J. Schiller
E. F. Milone
Affiliation:
Rothney Astrophysical Observatory, University of Calgary, 2500 University Dr., NW, Calgary, AB T2N 1N4, Canada email: [email protected]
S. J. Schiller
Affiliation:
Raytheon Space and Airborne Systems, 2000 E. El Segundo Blvd, M/S EO/E04/N187, El Segundo, CA 90245, USA email: [email protected]
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Abstract

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We alert the community to a paradigm method to calibrate a range of standard candles by means of well-calibrated photometry of eclipsing binaries in star clusters. In particular, we re-examine systems studied as part of our Binaries-in-Clusters program, and previously analyzed with earlier versions of the Wilson–Devinney light-curve modeling program. We make use of the 2010 version of this program, which incorporates a procedure to estimate the distance to an eclipsing system directly, as a system parameter, and is thus dependent on the data and analysis model alone. As such, the derived distance is accorded a standard error, independent of any additional assumptions or approximations that such analyses conventionally require.

Keywords

binaries: eclipsingstars: distancesstars: individual (HD 27130, DS Andromedae)open clusters and associations: generalopen clusters and associations: individual (Hyades, NGC 752)
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S289: Advancing the Physics of Cosmic Distances , August 2012 , pp. 227 - 230
Copyright
Copyright © International Astronomical Union 2013

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