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Searching for Periodic Variables in the EROS-2 Database

Published online by Cambridge University Press:  20 April 2012

P. Dubath ,
I. Lecoeur ,
L. Rimoldini ,
M. Süveges ,
J. Blomme ,
M. López ,
L. M. Sarro ,
J. De Ridder ,
J. Cuypers  and
L. Guy
...Show all authors
P. Dubath
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
I. Lecoeur
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
L. Rimoldini
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
M. Süveges
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
J. Blomme
Affiliation:
Instituut voor Sterrenkunde, K.U. Leuven, Belgium
M. López
Affiliation:
Centro de Astrobiologia (INTA-CSIC), Villanueva de la Canada, Spain
L. M. Sarro
Affiliation:
Dpt. de Inteligencia Artificial, UNED, Madrid, Spain
J. De Ridder
Affiliation:
Instituut voor Sterrenkunde, K.U. Leuven, Belgium
J. Cuypers
Affiliation:
Royal Observatory of Belgium, Brussels, Belgium
L. Guy
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
K. Nienartowicz
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
A. Jan
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
M. Beck
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
N. Mowlavi
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
D. Ordóñez-Blanco
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch ISDC Data Centre for Astrophysics, Université de Genève, Switzerland
J. B. Marquette
Affiliation:
Institut d'Astrophysique de Paris, 75014 Paris, France
J. P. Beaulieu
Affiliation:
Institut d'Astrophysique de Paris, 75014 Paris, France
P. Tisserand
Affiliation:
Research School of Astronomy & Astrophysics, Mount Stromlo Observatory, Weston ACT 2611, Australia CEA, DSM, DAPNIA, Centre dÉtudes de Saclay, 91191 Gif-sur-Yvette Cedex, France
É. Lesquoy
Affiliation:
Institut d'Astrophysique de Paris, 75014 Paris, France CEA, DSM, DAPNIA, Centre dÉtudes de Saclay, 91191 Gif-sur-Yvette Cedex, France
L. Eyer
Affiliation:
Observatoire astronomique de l'Université de Genève, Switzerland email: Pierre.Dubath@unige.ch
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Abstract

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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.

Keywords

methods: statistical – techniques: photometric – stars: variables: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S285: New Horizons in Time-Domain Astronomy , September 2011 , pp. 309 - 311
Copyright
Copyright © International Astronomical Union 2012

References

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Zechmeister, M., Kürster, M. 2009, A&A, 496, 577Google Scholar