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Ground-based proper motions of nearby local group galaxies: A progress report for Fornax

Published online by Cambridge University Press:  13 April 2010

Rene A. Méndez ,
Edgardo Costa ,
Mario H. Pedreros ,
Maximiliano Moyano ,
Martin Altmann  and
Carme Gallart
Rene A. Méndez
Affiliation:
Astronomy Department, Universidad de Chile, Casilla 36-D, Santiago, Chile email: rmendez@das.uchile.cl, costa@das.uchile.cl
Edgardo Costa
Affiliation:
Astronomy Department, Universidad de Chile, Casilla 36-D, Santiago, Chile email: rmendez@das.uchile.cl, costa@das.uchile.cl
Mario H. Pedreros
Affiliation:
Physics Department, Universidad de Tarapacá, Casilla 7-D, Arica, Chile email: mpedrero@uta.cl
Maximiliano Moyano
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117, Heidelberg, Germany email: moyano@mpia-hd.mpg.de
Martin Altmann
Affiliation:
Astronomisches Rechen-Institut, Mönchhofstr. 12-14, 69120 Heidelberg, Germany email: maltmann@ari.uni-heidelberg.de
Carme Gallart
Affiliation:
Instituto de Astrofísica de Canarias, Tenerife 38200, Islas Canarias, España email: carme@iac.es
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Abstract

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Determining the kinematics of the dwarf Spheroidal galaxies (dSph) satellites of the Milky Way (MW) is crucial to estimate the mass of our galaxy, to understand its formation process and that of its satellites, to explain the origin of stellar streams in the MW's halo that seem to be related to these satellites, and to understand the role of tidal interactions in the evolution and star formation history of low mass galaxies and of the halo of our Galaxy. In what follows we briefly explain a ground-based astrometric project that will have an impact on these issues, and present some preliminary results.

Keywords

astrometryGalaxy: haloGalaxy: formationgalaxies: dwarfgalaxies: kinematics and dynamics(galaxies:) Local Group
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S262: Stellar Populations – Planning for the Next Decade , August 2009 , pp. 139 - 142
Copyright
Copyright © International Astronomical Union 2010

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