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Gaia Radial Velocity Spectrometer Performance

Published online by Cambridge University Press:  17 July 2015

M. Cropper ,
D. Katz ,
P. Sartoretti ,
P. Panuzzo ,
G. Seabroke ,
M. Smith ,
C. Dolding ,
H. Huckle ,
O. Marchal  and
K. Benson
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M. Cropper
Affiliation:
Mullard Space Science Laboratory, University College London, Dorking, RH5 6NT, UK
D. Katz
Affiliation:
GEPI, Observatoire de Paris Meudon, 5 place Jules Janssen, 92190 Meudon, France
P. Sartoretti
Affiliation:
GEPI, Observatoire de Paris Meudon, 5 place Jules Janssen, 92190 Meudon, France
P. Panuzzo
Affiliation:
GEPI, Observatoire de Paris Meudon, 5 place Jules Janssen, 92190 Meudon, France
G. Seabroke
Affiliation:
Mullard Space Science Laboratory, University College London, Dorking, RH5 6NT, UK
M. Smith
Affiliation:
Mullard Space Science Laboratory, University College London, Dorking, RH5 6NT, UK
C. Dolding
Affiliation:
Mullard Space Science Laboratory, University College London, Dorking, RH5 6NT, UK
H. Huckle
Affiliation:
Mullard Space Science Laboratory, University College London, Dorking, RH5 6NT, UK
O. Marchal
Affiliation:
GEPI, Observatoire de Paris Meudon, 5 place Jules Janssen, 92190 Meudon, France
K. Benson
Affiliation:
Mullard Space Science Laboratory, University College London, Dorking, RH5 6NT, UK
A. Gueguen
Affiliation:
GEPI, Observatoire de Paris Meudon, 5 place Jules Janssen, 92190 Meudon, France
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Abstract

We present the initial performance of the Gaia Radial Velocity Spectrometer, providing an overview of its performance, which is essentially nominal in terms of spectral resolution, throughput and operation, except for the presence of unexpectedly high levels of scattered background. This is mainly Solar in origin, and reduces the limiting magnitude for radial velocity measurements by ∼1 magnitude to V  ∼ 16. Radial velocity calibration accuracies are compliant with requirements.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 68: The Milky Way Unravelled by Gaia: GREAT Science from the Gaia Data Releases , 2014 , pp. 69 - 73
Copyright
© EAS, EDP Sciences, 2015

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References

de Bruijne, J., et al., 2015, these proceedings
Lindegren, L., et al., 2008, IAU Symposium, 248, 217
Prusti, T., et al., 2015, these proceedings
Soubiran, C., et al., 2013, A&A, 552, 64