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Title:
Spectroscopic binaries as observed by the future Gaia space mission
Authors:
Damerdji, Yassine; Delchambre, Ludovic; Morel, Thierry; Gosset, Eric; Rauw, Gregor
Affiliation:
AA(Institut d'Astrophysique et de Géophysique, Université de Liège, Belgium)
Publication:
Société Royale des Sciences de Liège, Bulletin, vol. 80, p. 480-485 (Proceedings of the 39th Liège Astrophysical Colloquium, held in Liège 12-16 July 2010, edited by G. Rauw, M. De Becker, Y. Nazé, J.-M. Vreux, P. Williams)
Publication Date:
01/2011
Origin:
AUTHOR
Bibliographic Code:
2011BSRSL..80..481D

Abstract

The future Gaia satellite will observe a large number of stars through its three main channels: astrometric, photometric and, for the brightest stars, spectroscopic. The satellite is equipped with the RVS spectrograph, which will provide medium-resolution spectra over a small wavelength range. These spectra should allow us to identify stars exhibiting a composite spectrum, either because of a chance alignment or a true binarity. We discuss the various aspects related to the data treatment of the binary candidates and describe the algorithms that are intended to be included in the processing pipeline.
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