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VLT/FLAMES spectroscopy of Red Giant Branch stars in the Carina dwarf spheroidal galaxy
B. Lemasle, V. Hill, E. Tolstoy +6
The ages of individual Red Giant Branch stars (RGB) can range from 1 Gyr old to the age of the Universe, and it is believed that the abundances of most chemical elements in their p…
The ACS LCID project VII: the blue stragglers population in the isolated dSph galaxies Cetus and Tucana
M. Monelli, S. Cassisi, M. Mapelli +8
We present the first investigation of the Blue Straggler star (BSS) population in two isolated dwarf spheroidal galaxies of the Local Group, Cetus and Tucana. Deep HST/ACS photomet…
The Dynamical and Chemical Evolution of Dwarf Spheroidal Galaxies with GEAR
Yves Revaz, Pascale Jablonka
We present a fully parallel chemo-dynamical Tree/SPH code, GEAR, which allows to perform high resolution simulations with detailed chemical diagnostics. Starting from the public ve…
MAD about the Large Magellanic Cloud: preparing for the era of Extremely Large Telescopes
G. Fiorentino, E. Tolstoy, E. Diolaiti +3
We present J, H, Ks photometry from the the Multi conjugate Adaptive optics Demonstrator (MAD), a visitor instrument at the VLT, of a resolved stellar population in a small crowded…
An E-ELT Case Study: Colour-Magnitude Diagrams of an Old Galaxy in the Virgo Cluster
A. Deep, G. Fiorentino, E. Tolstoy +5
One of the key science goals for a diffraction limited imager on an Extremely Large Telescope (ELT) is the resolution of individual stars down to faint limits in distant galaxies.…
Deep Wide-Field Imaging down to the oldest Main Sequence Turnoffs in the Sculptor dwarf spheroidal galaxy
T. J. L. de Boer, E. Tolstoy, A. Saha +7
We present wide-field photometry of resolved stars in the nearby Sculptor dwarf spheroidal galaxy using CTIO/MOSAIC, going down to the oldest Main Sequence Turn-Off. The accurately…