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Communication Dans Un Congrès SF2A-2012: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: S. Boissier Année : 2012

The catalogue of radial velocity standard stars for Gaia

Résumé

The Radial Velocity Spectrograph (RVS) on board of Gaia needs to be calibrated using stable reference stars known in advance. A catalogue has being built for that purpose, including 1420 radial velocity standard star candidates selected on strict criteria in order to fulfill the Gaia-RVS requirements. We have undertaken a large programme of ground based observations in 2006 to monitor these stars and verify their stability which has to be better than 300 m s^{-1} over several years. We report 6536 radial velocity measurements for the 1420 stars. For a mean time baseline of 5.9 years, nearly 95% of the candidates (1394 stars) fulfill the stability criterion of 300 m s^{-1}. 80.4% have a stability better than 100 m s^{-1}. We compared our measurements to other sources.
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Dates et versions

hal-00833289 , version 1 (12-06-2013)

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C. Soubiran, Gérard Jasniewicz, L. Chemin, F. Crifo, S. Udry, et al.. The catalogue of radial velocity standard stars for Gaia. -, 2012, Nice, France. pp.71-74. ⟨hal-00833289⟩
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