Journal
ASTRONOMY & ASTROPHYSICS
Volume 616, Issue -, Pages -Publisher
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201832763
Keywords
space vehicles: instruments; instrumentation: spectrographs; surveys; techniques: spectroscopic; techniques: radial velocities
Categories
Funding
- United Kingdom Science and Technology Facilities Council
- United Kingdom Space Agency
- Belgian Federal Science Policy Office (BELSPO) through various Programme de Developpement d'Experiences Scientifiques (PRODEX)
- French Centre National de la Recherche Scientifique (CNRS)
- Centre National dEtudes Spatiales (CNES)
- Agence Nationale de la Recherche
- Region Aquitaine
- Universite de Bordeaux
- UTINAM Institute of the Universite de Franche-Comte
- Institut des Sciences de l'Univers (INSU)
- German Aerospace Agency (Deutsches Zentrum fur Luft- und Raumfahrt e.V., DLR)
- Italian Agenzia Spaziale Italiana (ASI)
- Italian Istituto Nazionale di Astrofisica (INAF)
- Slovenian Research Agency [P1-0188]
- Swiss State Secretariat for Education, Research, and Innovation through ESA PRODEX programme
- Mesures d'Accompagnement
- Swiss Activites Nationales Complementaires
- Swiss National Science Foundation
- STFC [ST/N000811/1, PP/E00119X/1, ST/N000757/1, ST/H002235/1, ST/K001000/1] Funding Source: UKRI
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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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