3 papers
astro-ph2004
Chemical abundances of RGB-Tip stars in the Sagittarius dwarf Spheroidal galaxy
Lorenzo Monaco
We present preliminary iron abundances and element (Ca, Mg) abundance ratios for a sample of 22 Red Giant Branch (RGB) Stars in the Sagittarius dwarf spheroidal galaxy (Sgr), s…
astro-ph2003
The Nuclear Structure of the Sagittarius Dwarf Spheroidal Galaxy
Lorenzo Monaco, Michele Bellazzini, Francesco R. Ferraro +1
We present a study of the central parts of the Sagittarius dwarf spheroidal galaxy (Sgr). We found a clear overdensity of Sgr's stars around M~54 (hereafter NS). NS is well represe…
astro-ph2003
Building up the Galactic Halo: The Sagittarius dSph and the globular cluster M22
L. Monaco, F. R. Ferraro, M. Bellazzini +1
The Sagittarius dwarf spheroidal (Sgr) and a few paculiar Galactic Globular Clusters (GGC) can be considered as building blocks of theGalactic Halo. We present a series of results…