We present ground-based B and R-band color-magnitude diagrams (CMDs) of unprecedented depth for twelve fields in the Small Magellanic Cloud (SMC). They reach...
Old main-sequence turnoff photometry in the SMC: Star Formation History and Chemical Enrichment Law
We present deep ground-based {it B} and {it R} observations of 12 fields in the Small Magellanic Cloud (SMC). The resulting color-magnitude diagrams (CMDs)...
Old Main-Sequence Turnoff Photometry of Isolated Local Group Dwarf Galaxies: First Results of the LCID Project
We present the project Local Cosmology from Isolated Dwarfs (LCID), aimed at deriving detailed star-formation histories for a sample of Local Group isolated...
Old Populations and the Star Formation History of the Local Group Dwarf Irregular Galaxy NGC 6822
A method for studying the full star formation history (SFH) of nearby galaxies,as a function of time, has been developped and implemented. For the first time...
Old Populations and the Star Formation History of the Local Group Dwarf Irregular Galaxy NGC 6822
A method for studying the star formation history (SFH) of nearby galaxies, as a function of time, has been developped and implemented. For the first time, the...
On an ambiguity in the concept of partial and total derivatives in classical analysis
Ambiguity is shown in the context of the differential calculus of several variables and with the help of the language of category theory, a way to solve it in...