Radial distributions of spectral absorption indices in spiral disks

Abstract

We present a grid of 440 spectro-photometric models for simulating spiral and irregular galaxies. They have been consistently calculated with evolutionary synthesis models which use as input the information proceeding from chemical evolution models. The model predictions are spectral energy distributions, brightness and color profiles and radial distributions of spectral absorption stellar indices which are in agreement with observations.

2 pages, 1 fig, contribution to IAU 241 Symp. Stellar Populations as buildinng blocks of Galaxies