16 papers · 1 filter
New response functions for absorption-line indices from high-resolution spectra
R. Tantalo, C. Chiosi, L. Piovan
Basing on the huge library of 1-A resolution spectra calculated by Munari et al. over a large range of logT, log g, [Fe/H] and both for solar and a-enhanced abundance ratios [a/Fe]…
Kinematics of the disk population in the GAIA era
G. Bertelli, A. Vallenari, S. Pasetto +1
GAIA data will create a precise 3-dimensional map of the Galaxy, providing positional information, radial velocities, luminosity, temperature and chemical composition of a represen…
Evolution of zero-metallicity massive stars
P. Marigo, C. Chiosi, L. Girardi +1
We discuss the evolutionary properties of primordial massive and very massive stars, supposed to have formed from metal-free gas. Stellar models are presented over a large range of…
A chemical evolution model for galaxy clusters
L. Portinari, A. Moretti, C. Chiosi
We develop a toy-model for the chemical evolution of the intracluster medium, polluted by the galactic winds from elliptical galaxies. The model follows the "galaxy formation histo…
Chemical Evolution of Clusters of Galaxies
L. Portinari, A. Moretti, C. Chiosi
The high metallicity of the intra-cluster medium (ICM) is generally interpreted on the base of the galactic wind scenario for elliptical galaxies. In this framework, we develop a t…
On radial gas flows, the Galactic Bar and chemical evolution in the Galactic Disc
L. Portinari, C. Chiosi
We develop a numerical chemical model allowing for radial flows of gas, with the aim to analyse the possible role of gas flows in the chemical evolution of the Galactic Disc. The d…