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The predicted metallicity distribution of stars in dwarf spheroidal galaxies

Published online by Cambridge University Press:  01 December 2004

Gustavo A. Lanfranchi  and
Francesca Matteucci
Gustavo A. Lanfranchi
Affiliation:
IAG-USP, R. do Matão 1226, Cidade Universitária, 05508-900 São Paulo, SP, Brazil email: [email protected]
Francesca Matteucci
Affiliation:
Dipartimento di Astronomia-Universitá di Trieste, Via G. B. Tiepolo 11, 34131 Trieste, Italy email: [email protected]
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Abstract

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We predict the metallicity distribution of stars for 6 Dwarf Spheroidal (dSph) galaxies of the Local Group by means of a chemical evolution model which is able to reproduce several observed abundance ratios and the present day total mass and gas content of these galaxies. The model adopts up to date nucleosynthesis and takes into account the role played by supernovae of different types (II, Ia). Each galaxy model is specified by the prescriptions of the star formation rate and by the galactic wind efficiency chosen to reproduce the main features of these galaxies.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
POSTERS
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS222 , March 2004 , pp. 555 - 556
Copyright
© 2004 International Astronomical Union