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M 31, M 33 and the Milky Way:Similarities and Differences

Published online by Cambridge University Press:  25 September 2002

O. Bienaymé ,
C. Turon  and
R.F.G. Wyse
R.F.G. Wyse*
Affiliation:
The Johns Hopkins University, Department of Physics and Astronomy, Baltimore, MD 21218, USA
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Abstract

The large galaxies in the Local Group, as all disk galaxies, havediverse stellar populations. A better understanding of thesedifferences, and a physical understanding of the causes, requires moredetailed study of the older populations. This presents a significantchallenge to GAIA but the scientific returns are also significant.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 2: GAIA: A European Space Project , 2002 , pp. 295 - 304
Copyright
© EAS, EDP Sciences, 2002

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