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A spectroscopic survey of the Thick Disc outside the Solar neighbourhood: A comparison with the Besançon model

Published online by Cambridge University Press:  15 February 2011

C. Turon ,
F. Meynadier ,
F. Arenou ,
G. Kordopatis ,
A. Recio-Blanco ,
P. de Laverny ,
G. Gilmore ,
V. Hill ,
R.F.G. Wyse  and
A. Helmi
...Show all authors
G. Kordopatis
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
A. Recio-Blanco
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
P. de Laverny
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
G. Gilmore
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
V. Hill
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
R.F.G. Wyse
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
A. Helmi
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
A. Bijaoui
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
C. Ordenovic
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
M. Zoccali
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
O. Bienaymé
Affiliation:
Université de Nice Sophia-Antipolis, CNRS, Observatoire de la Côte d’Azur, Cassiopée, France. e-mail: Georges.Kordopatis@oca.eu
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Abstract

A spectroscopic survey of nearly 700 stars probing the Galactic Thick Disc far from the Solar neighbourhood is performed. The MATISSE (MATrix Inversion for Spectral SynthEsis) algorithm is developed and trained in order to automatically obtain atmospheric parameters of stars. The derived effective temperatures, surface gravities and overall metallicities are then combined to stellar evolution isochrones, radial velocities and proper motions to derive the distances, kinematics and orbital parameters of the sample stars. Results are compared with simulations from the Besançon model of the Milky Way.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 45: GAIA: At the Frontiers of Astrometry , 2010 , pp. 405 - 408
Copyright
© EAS, EDP Sciences 2011

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References

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