DSpace - Tor Vergata: Item 2108/208

Please use this identifier to cite or link to this item: http://hdl.handle.net/2108/208

Title:	Detailed chemical abundances in the Sgr and CMa dwarf galaxies
Authors:	Buonanno, Roberto Sbordone, Luca
Keywords:	abundances atmospheres dwarf evolution stellar content Sgr dSph
Issue Date:	21-Feb-2006
Abstract:	Abstract Detailed chemical abundances for up to 23 elements from Oxygen to Europium have been obtained from VLT-UVES spectra for 12 giants in the Sagittarius Dwarf Spheroidal galaxy (Sgr dSph), 5 in the associated globular cluster Terzan 7, and 3 in the direction of the newly discovered and still controversial CMa overdensity. The analysis has been accomplished by means of a GNU-Linux ported version of R. L. Kurucz’s codes for atmosphere modeling (ATLAS), abundance determination (WIDTH) and spectral synthesis (SYNTHE). The porting details are discussed in the thesis, the ported codes are freely available on line. Sgr dSph is the nearest confirmed dwarf spheroidal galaxy. Moving along a short period, quasi-polar orbit around the Milky Way (MW) it is undergoing tidal disruption inside the Halo. It is, consequently, an ideal test case for studying the role of tidal merging in shaping our Galaxy. In this study we evidence the presence of a metal rich (from [Fe/H]» −0.8 up to sli...
URI:	http://hdl.handle.net/2108/208
Appears in Collections:	Tesi di dottorato in scienze matematiche e fisiche

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