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The extensive age gradient of the Carina dwarf galaxy
Giuseppina Battaglia, Michael Irwin, Eline Tolstoy +2
The evolution of small systems such as dwarf spheroidal galaxies (dSph) is likely to have been a balance between external environmental effects and internal processes within their…
The extremely low-metallicity tail of the Sculptor dwarf spheroidal galaxy
Else Starkenburg, Vanessa Hill, Eline Tolstoy +10
We present abundances for seven stars in the (extremely) low-metallicity tail of the Sculptor dwarf spheroidal galaxy, from spectra taken with X-shooter on the ESO VLT. Targets wer…
The Star Formation & Chemical Evolution History of the Fornax Dwarf Spheroidal Galaxy
T. J. L. de Boer, E. Tolstoy, V. Hill +6
We present deep photometry in the B,V and I filters from CTIO/MOSAIC for about 270.000 stars in the Fornax dwarf Spheroidal galaxy, out to a radius of r_ell\sim0.8 degrees. By comb…
A wide-area view of the Phoenix dwarf galaxy from VLT/FORS imaging
Giuseppina Battaglia, Marina Rejkuba, Eline Tolstoy +2
We present results from a wide-area photometric survey of the Phoenix dwarf galaxy, one of the rare dwarf irregular/ dwarf spheroidal transition type galaxies (dTs) of the Local Gr…
Orbit-based dynamical models of the Sculptor dSph galaxy
Maarten A. Breddels, A. Helmi, R. C. E. van den Bosch +2
We have developed spherically symmetric dynamical models of dwarf spheroidal galaxies using Schwarzschild's orbit superposition method. This type of modelling yields constraints bo…
Nucleosynthesis and the Inhomogeneous Chemical Evolution of the Carina Dwarf Galaxy
Kim Venn, Matthew Shetrone, Mike Irwin +12
The detailed abundances of 23 elements in nine bright RGB stars in the Carina dSph are presented based on high resolution spectra gathered at the VLT and Magellan telescopes. A sph…