CHEMIN, L.; SOUBIRAN, C.; CRIFO, F.; JASNIEWICZ, Gérard; VELTZ, L.; HESTROFFER, D.; UDRY, S.; BERTHIER, J.; VIGNERON, A.; KATZ, D.; SIEBERT, A.

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CHEMIN, L.
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Université Sciences et Technologies - Bordeaux 1 [UB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]

SOUBIRAN, C.
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Université Sciences et Technologies - Bordeaux 1 [UB]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]

CRIFO, F.
Galaxies, Etoiles, Physique, Instrumentation [GEPI]

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Communication dans un congrès

Ce document a été publié dans

Proceedings of SF2A2010, Proceedings of SF2A2010, SF2A-2010: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics. Eds.: S. Boissier, M. Heydari-Malayeri, R. Samadi and D. Valls-Gabaud, p.29, 2010, 2010. 2010p. 29

Résumé en anglais

A new full-sky catalog of Radial Velocity standard stars is being built for the determination of the Radial Velocity Zero Point of the RVS on board of Gaia. After a careful selection of 1420 candidates matching well defined criteria, we are now observing all of them to verify that they are stable enough over several years to be qualified as reference stars. We present the status of this long-term observing programme on three spectrographs : SOPHIE, NARVAL and CORALIE, complemented by the ELODIE and HARPS archives. Because each instrument has its own zero-point, we observe intensively IAU RV standards and asteroids to homogenize the radial velocity measurements. We can already estimate that ~8% of the candidates have to be rejected because of variations larger than the requested level of 300 m/s.< Réduire

Mots clés en anglais

strophysics

Galaxy Astrophysics

Astrophysics

Solar and Stellar Astrophysics

Origine

Importé de hal

Unités de recherche

Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804