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The first carbon-enhanced metal-poor star found in the Sculptor dwarf spheroidal
Asa Skuladottir, Eline Tolstoy, Stefania Salvadori +4
The origin of carbon-enhanced metal-poor (CEMP) stars and their possible connection with the chemical elements produced by the first stellar generation is still highly debated. In…
Weak Galactic halo--dwarf spheroidal connection from RR Lyrae stars
Giuliana Fiorentino, Giuseppe Bono, Matteo Monelli +6
We discuss the role that dwarf galaxies may have played in the formation of the Galactic halo (Halo) using RR Lyrae stars (RRL) as tracers of their ancient stellar component. The c…
VLT/FLAMES spectroscopy of red giant branch stars in the Fornax dwarf spheroidal galaxy
B. Lemasle, T. de Boer, V. Hill +13
Fornax is one of the most massive dwarf spheroidal galaxies in the Local Group. The Fornax field star population is dominated by intermediate age stars but star formation was going…
The episodic Star Formation History of the Carina Dwarf Spheroidal Galaxy
T. J. L. de Boer, E. Tolstoy, B. Lemasle +5
We present deep photometry of the Carina dwarf Spheroidal galaxy in the B,V filters from CTIO/MOSAIC, out to and beyond the tidal radius. The accurately calibrated photometry is co…
The ACS LCID project. X. The Star Formation History of IC 1613: Revisiting the Over-Cooling Problem
Evan D. Skillman, Sebastian L. Hidalgo, Daniel R. Weisz +13
We present an analysis of the star formation history (SFH) of a field near the half light radius in the Local Group dwarf irregular galaxy IC 1613 based on deep Hubble Space Telesc…