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astro-ph1999
On star formation and chemical evolution in the Galactic disc
L. Portinari, C. Chiosi
The abundance gradients and the radial gas profile of the Galactic disc are analysed by means of a model for the chemical evolution of galaxies. As one of the major uncertainties i…
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…