Gaia Data Release 2. Gaia Radial Velocity Spectrometer

Cropper, M.; Katz, D.; Sartoretti, P.; Prusti, T.; de Bruijne, J. H. J.; Chassat, F.; Charvet, P.; Boyadjian, J.; Perryman, M.; Sarri, G.; Gare, P.; Erdmann, M.; Munari, U.; Zwitter, T.; Wilkinson, M.; Arenou, F.; Vallenari, A.; Gómez, A.; Panuzzo, P.; Seabroke, G.; Allende Prieto, C.; Benson, K.; Marchal, O.; Huckle, H.; Smith, M.; Dolding, C.; Janßen, K.; Viala, Y.; Blomme, R.; Baker, S.; Boudreault, S.; Crifo, F.; Soubiran, C.; Frémat, Y.; Jasniewicz, G.; Guerrier, A.; Guy, L. P.; Turon, C.; Jean-Antoine-Piccolo, A.; Thévenin, F.; David, M.; Gosset, E.; Damerdji, Y.
Bibliographical reference

Astronomy and Astrophysics, Volume 616, id.A5, 19 pp.

Advertised on:
8
2018
Number of authors
43
IAC number of authors
1
Citations
171
Refereed citations
157
Description
This paper presents the specification, design, and development of the Radial Velocity Spectrometer (RVS) on the European Space Agency's Gaia mission. Starting with the rationale for the full six dimensions of phase space in the dynamical modelling of the Galaxy, the scientific goals and derived top-level instrument requirements are discussed, leading to a brief description of the initial concepts for the instrument. The main part of the paper is a description of the flight RVS, considering the optical design, the focal plane, the detection and acquisition chain, and the as-built performance drivers and critical technical areas. After presenting the pre-launch performance predictions, the paper concludes with the post-launch developments and mitigation strategies, together with a summary of the in-flight performance at the end of commissioning.
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