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Radial Velocities with Gaia

Published online by Cambridge University Press:  23 May 2005

Mark Cropper ,
David Katz ,
Ulisse Munari ,
Tomaz Zwitter  and
Andrew Holland
Mark Cropper
Affiliation:
Mullard Space Science Laboratory, University College London, Holmbury St Mary, Dorking, Surrey RH5 6NT, UK email: [email protected]
David Katz
Affiliation:
Observatoire de Paris, GEPI, 5 Place Jules Janssen, F-92195 Meudon, France
Ulisse Munari
Affiliation:
Osservatorio Astronomico di Padova INAF, sede di Asiago, 36012 Asiago (VI), Italy
Tomaz Zwitter
Affiliation:
University of Ljubljana, Department of Physics, Jadranska 19, 1000 Ljubljana, Slovenia
Andrew Holland
Affiliation:
Centre for Electronic Imaging, School of Engineering and Design, Brunel University, Uxbridge, UB8 3PH, UK
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Abstract

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Gaia is a mission to map the positions and determine the velocities of 1 billion stars in the Galaxy, in order to determine how it was formed and how it has evolved. Spectroscopy provides one component of the space velocities for 200 million objects, and, in addition, astrophysical information such as temperature and metallicity for the brighter 40 million stars in a large unbiased Galactic sample. Together the instruments on Gaia will transform our knowledge of the Galaxy. We describe here a sample of the science that will be done with Gaia concentrating on aspects in which the spectroscopy plays a central role.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUC196 , June 2004 , pp. 444 - 454
Copyright
© 2004 International Astronomical Union