Combined metallicity and dynamical evolution of an isothermal disk

A. Siebert; O. Bienaymé; C. Soubiran

doi:10.1051/eas:2003153

All issues

Volume 10 (2003)

EAS Publications Series, 10 (2003) 215

Abstract

Issue		EAS Publications Series Volume 10, 2003 JENAM 2002, Galactic & Stellar Dynamics


Page(s)		215 - 215
DOI		https://doi.org/10.1051/eas:2003153
Published online		22 December 2003

JENAM 2002, Galactic & Stellar Dynamics
C. Boily, P. Patsis, S. Portegies Zwart, R. Spurzem and C. Theis (eds)
EAS Publications Series, 10 (2003) 215

Combined metallicity and dynamical evolution of an isothermal disk

A. Siebert¹, O. Bienaymé¹ and C. Soubiran²

¹ Observatoire de Strasbourg, UMR 7550, 11 rue de l'Université, 67000 Strasbourg, France and 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 simple model for the evolution of an isothermal disk has been developed. It combines both the chemical evolution (through the Age-Metallicity Relation) and dynamical evolution (through the age-dispersion relation). Applying this model to a sample of Red Clump Stars from the Tycho-2 catalog, observed with the high resolution echelle spectrograph Elodie at the Observatoire de Haute Provence, we derive the underlying Star Formation History and compare it with local determinations using chromospheric activity survey by Rocha-Pinto et al. (2000b).