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2 results

Automated eclipsing binary detection:applying the Gaia CU7 pipeline to Hipparcos
B. Holl, N. Mowlavi, I. Lecoeur-Taïbi, F. Barblan, L. Rimoldini, L. Eyer, M. Süveges, L. Guy, D. Ordoñez-Blanco, I. Ruiz, K. Nienartowicz
Journal: European Astronomical Society Publications Series / Volume 68 / 2014
Published online by Cambridge University Press: 17 July 2015, pp. 299-303
Print publication: 2014
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We demonstrate the eclipsing binary detection performance of the Gaia variability analysis and processing pipeline using Hipparcos data. The automated pipeline classifies 1 067 (0.9%) of the 118 204 Hipparcos sources as eclipsing binary candidates. The detection rate amounts to 89% (732 sources) in a subset of 819 visually confirmed eclipsing binaries, with the period correctly identified for 80% of them, and double or half periods obtained in 6% of the cases.

Searching for Periodic Variables in the EROS-2 Database
P. Dubath, I. Lecoeur, L. Rimoldini, M. Süveges, J. Blomme, M. López, L. M. Sarro, J. De Ridder, J. Cuypers, L. Guy, K. Nienartowicz, A. Jan, M. Beck, N. Mowlavi, D. Ordóñez-Blanco, J. B. Marquette, J. P. Beaulieu, P. Tisserand, É. Lesquoy, L. Eyer
Journal: Proceedings of the International Astronomical Union / Volume 7 / Issue S285 / September 2011
Published online by Cambridge University Press: 20 April 2012, pp. 309-311
Print publication: September 2011
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We started a systematic search for periodic variable-star candidates in the EROS-2 database in the context of preparatory work for the Gaia satellite mission. The goal is to evaluate different classification tools and strategies, and to identify a large sample of variable candidates. In this paper we present the results of an assessment study of a three-step identification and classification process. In the study we took a sample of about 80,000 stars from one of the LMC EROS fields.