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J/ApJ/663/249 LMC eclipsing binaries in the MACHO database (Derekas+, 2007)
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Beginning of ReadMe :J/ApJ/663/249 LMC eclipsing binaries in the MACHO database (Derekas+, 2007)
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Eclipsing binaries in the MACHO database: new periods and classifications for
3031 systems in the Large Magellanic Cloud.
Derekas A., Kiss L.L., Bedding T.R.
<Astrophys. J., 663, 249-257 (2007)>
=2007ApJ...663..249D
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ADC_Keywords: Stars, variable ; Binaries, eclipsing ; Photometry
Keywords: binaries: eclipsing - galaxies: individual (Large Magellanic Cloud) -
stars: statistics - stars: variables: other
Abstract:
Eclipsing binaries offer a unique opportunity to determine fundamental
physical parameters of stars by using the constraints on the geometry
of the systems. Here we present a reanalysis of publicly available
two-color observations of about 6800 stars in the Large Magellanic
Cloud obtained by the MACHO Project between 1992 and 2000 and
classified as eclipsing variables. Of these, fewer than half are
genuine eclipsing binaries. We determined new periods and classified
the stars, 3031 in total, using the Fourier parameters of the phased
light curves.
Description:
The MACHO observations were carried out between 1992 and 2000 with the
1.27m Great Melbourne Telescope at Mount Stromlo Observatory,
Australia.
The telescope was equipped with a specifically designed camera, which
gave a 0.5deg^2^ field of view. The observations were obtained in two
nonstandard bandpasses simultaneously: a 440-590nm MACHO "blue"
filter, and a 590-780nm MACHO "red" filter.