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To be published in:
Proceedings of the 172nd IAU Colloquium

Orbits of Hipparcos metal-poor stars with well-defined spectroscopic abundances.

F. Bancken1 and E. Jehin1.

1 Institut d'Astrophysique et de Géophysique - Université de Liège, Avenue de Cointe 5, 4000 Liège, Belgium


     We investigate the orbits of metal-poor stars in a modified Ostriker and Caldwell Galactic mass model. These stars have well-determined spectroscopic abundances and our objective is to search for a relationship between these abundances and the characteristics of orbits such as excentricity, chaoticity, ...

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