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Modelling stellar populations in galaxies resolved in stars by Gaia

Published online by Cambridge University Press:  15 February 2011

C. Turon ,
F. Meynadier ,
F. Arenou ,
M. Belcheva ,
E. Livanou ,
M. Kontizas ,
G. Nikolov  and
E. Kontizas
M. Belcheva
Affiliation:
Department of Astrophysics Astronomy & Mechanics, Faculty of Physics, University of Athens, 15783 Athens, Greece
E. Livanou
Affiliation:
Department of Astrophysics Astronomy & Mechanics, Faculty of Physics, University of Athens, 15783 Athens, Greece
M. Kontizas
Affiliation:
Department of Astrophysics Astronomy & Mechanics, Faculty of Physics, University of Athens, 15783 Athens, Greece
G. Nikolov
Affiliation:
Department of Astrophysics Astronomy & Mechanics, Faculty of Physics, University of Athens, 15783 Athens, Greece Department of Astronomy, Sofia University St.Kliment Ohridski, 1164 Sofia, Bulgaria
E. Kontizas
Affiliation:
IAA, National Observatory of Athens, PO Box 20048, 11810 Athens, Greece
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Abstract

Gaia is expected to resolve nearby galaxies in stars, improving greatly our knowledge of them. The main goal of our group is to obtain the spatial distribution of different stellar components in these galaxies and work towards producing a model of the Magellanic Clouds to be used, among others, in simulations by CU2 during the Gaia mission preparation. In this study the Magellanic Clouds are the main targets. The spatial distribution of various stellar populations in these galaxies is being investigated using isodensity maps and radial density profiles. We are now presenting the latest results from our work on modelling the Magellanic Clouds as expected to be seen by Gaia.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 45: GAIA: At the Frontiers of Astrometry , 2010 , pp. 325 - 330
Copyright
© EAS, EDP Sciences 2011

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