Bibcode
Tolstoy, E.; Battaglia, G.; Helmi, A.; Irwin, M. J.; Hill, V.
Referencia bibliográfica
From Stars to Galaxies: Building the Pieces to Build Up the Universe. ASP Conference Series, Vol. 374, proceedings of the conference held 16-20 October 2006 at Istituto Veneto di Scienze, Lettere ed Arti, Venice, Italy. Edited by Antonella Vallenari, Rosaria Tantalo, Laura Portinari, and Alessia Moretti., p.215
Fecha de publicación:
12
2007
Número de citas
0
Número de citas referidas
0
Descripción
We review the progress of ESO/WFI Imaging and VLT/FLAMES spectroscopy of
large numbers of individual stars in nearby dwarf spheroidal galaxies by
the Dwarf Abundances and Radial-velocities Team (DART). These
observations have allowed us to show that neither the kinematics nor the
abundance nor the spatial distributions are easy to explain in a
straight forward manner for these smallest galaxies. The main result is
that dwarf galaxies show complex and highly specific evolutionary and
metal enrichment processes, especially at ancient times. This
conclusively proves that these small galaxies are not the surviving
equivalent of the building blocks of the larger galaxies in the Local
Group.