Search for Eclipsing Binaries towards the Galactic Bulge with OGLE-II and 2MASS Data

Details Search for Eclipsing Binaries towards the Galactic Bulge with OGLE-II and 2MASS Data Search for Eclipsing Binaries towards the Galactic Bulge with OGLE-II and 2MASS Data

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009rmxac..35..119t&link_type=abstract

XII Latin American IAU Regional Meeting (Eds. G. Magris, G. Bruzual, & L. Carigi) Revista Mexicana de Astronomía y Astrofísica (

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Binaries: Eclipsing, Catalogs, Methods: Data Analysis, Surveys

Scientific paper

The Optical Gravitational Lensing Experiment (OGLE) produced as a by-product a catalog of ˜ 220,000 candidates to variable stars. The data were collected in the I band and consist of images and light curves. On the other hand, at the same epoch, the Two Micron All-Sky Survey (2MASS) covered the whole sky providing accurate positions and fluxes for ˜ 4.7×10^8 point sources in the J, H and K_S photometric bands. In this work, we present a systematics for the identification of eclipsing binaries in OGLE-II that have infrared counterparts in the 2MASS survey. To do this, we used the Principal Component Analysis as a selection tool.

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