Bibcode
Tolstoy, Eline; Hill, Vanessa; Irwin, Mike; Helmi, Amina; Battaglia, Guiseppina; Letarte, Bruno; Venn, Kim; Jablonka, Pascale; Shetrone, Matthew; Arimoto, Nobuo; Abel, Tom; Primas, Francesca; Kaufer, Andreas; Szeifert, Thomas; Francois, Patrick; Sadakane, Kozo
Referencia bibliográfica
The Messenger, volume 123, page 33
Fecha de publicación:
3
2006
Número de citas
35
Número de citas referidas
28
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 galaxy Abundances and Radial-velocities Team (DART). These
observations have allowed us to show that neither the kinematics nor the
abundances nor the spatial distributions are easy to explain in a
straightforward 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 building
blocks of the larger galaxies in the Local Group.