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Red Giant Branch Stars in Fornax with VLT/FLAMES

Published online by Cambridge University Press:  23 December 2005

Bruno Letarte
Affiliation:
Kapteyn Astronomical Institute, email: letarte@astro.rug.nl
Vanessa Hill
Affiliation:
Observatoire de Paris
Pascale Jablonka
Affiliation:
EPFL, Observatoire de Genève
Eline Tolstoy
Affiliation:
Kapteyn Astronomical Institute, email: letarte@astro.rug.nl
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Abstract

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The Fornax dSph is an interesting case as it contains five old globular clusters and its field stars, although predominantly of intermediate (3-8 Gyr old) age, cover a wide range of age and metallicity. Detailed abundance analysis is crucial to our understanding of the earliest star formation epoches, where classic CMD analysis fails to provide a unique answer. It also allows us to measure the chemical evolution of the stellar population following tracers of different enrichment mechanisms through time, e.g. SN type II (alpha elements); AGB stars (s-process elements) etc. With our large sample of abundance measurements we will obtain a detailed picture of the evolution of Fornax and of the role played by small galaxies in the building up of larger ones.

Type
Contributed Papers
Copyright
© 2005 International Astronomical Union