Issue EAS Publications Series Volume 10, 2003 JENAM 2002, Galactic & Stellar Dynamics Page(s) 49 DOI 10.1051/eas:2003129

Galactic & Stellar Dynamics
C. Boily, P. Patsis, S. Portegies Zwart, R. Spurzem and C. Theis (eds)
EAS Publications Series, Vol. 10, 2003
DOI: 10.1051/eas:2003129

Spectroscopic survey of Red Clump stars and the vertical shape of the Galactic potential

A. Siebert¹, O. Bienaymé¹ and C. Soubiran<sup>2

1</sup>  Observatoire de Strasbourg, UMR 7550, 11 rue de l'Université, 67000 Strasbourg, France ^* Current address: Steward Observatory, Tucson, AZ 85721-0065, USA
²  Observatoire Aquitain des Sciences de l'Univers, UMR 5804, 2 rue de l'Observatoire, 33270 Floirac, France

Abstract
A sample of nearly 400 stars, selected from the Tycho-2 catalog, has been observed towards the North Galactic Pole with the high resolution echelle spectrograph Elodie. Combining those data with a local sample from the Hipparcos catalog, a detailed study of the disk components is done. A dynamical analysis is also performed, enabling us to put new constraints on the local mass density.

© EAS, EDP Sciences 2003

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