| Issue |
|
EAS Publications Series
Volume 10,
2003
JENAM 2002, Galactic & Stellar Dynamics
|
|
Page(s)
|
|
215 |
| DOI |
|
10.1051/eas:2003153 |
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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:2003153
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
* 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 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).
© EAS, EDP Sciences 2003
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