3 papers
astro-ph1999
Star Formation History of Early-Type Galaxies in Low Density Environments V. Blue line-strength indices for the nuclear region
M. Longhetti, A. Bressan, C. Chiosi +1
We analyze the star formation properties of a sample of 21 shell galaxies and 30 early-type galaxies members of interacting pairs, located in low density environments (Longhetti et…
astro-ph1997
Spectro-Photometric Evolution of Elliptical Galaxies. III. Infall models with gradients in mass and star formation
R. Tantalo, C. Chiosi, A. Bressan +2
In this study we present a simple model of elliptical galaxies aimed at interpreting the gradients in colours and narrow band indices observed across these systems. Salient feature…
astro-ph1996
Spectro-photometric Evolution of Elliptical Galaxies. II. Models with infall
R. Tantalo, C. Chiosi, A. Bressan +1
In this paper we present new chemo-spectro-photometric models of elliptical galaxies in which infall of primordial gas is allowed to occur. They aim to simulate the collapse of a g…