Galaxy Evolution tool: Construction and Applications
Abstract
We present a dual-infall galactic chemical evolution model which uses a new set of stellar yields calculated by Limongi et al (2001) to constrain the amount of iron-peak elements ejected by massive stars. The age-metallicity relation, G-dwarf distribution and evolution of abundance ratios are predicted using Galaxy Evolution tool (GEtool), a software package currently being developed to self-consistenly model the chemical and spectral evolution of disk galaxies. A comparison with results obtained using the Woosley & Weaver (1995) core-collapse supernova models suggests that the observed behaviour of key abundance patterns cannot be reproduced if the iron yield of massive stars increases with initial mass.
Keywords
Cite
@article{arxiv.astro-ph/0205249,
title = {Galaxy Evolution tool: Construction and Applications},
author = {Yeshe Fenner and Brad K. Gibson and Marco Limongi},
journal= {arXiv preprint arXiv:astro-ph/0205249},
year = {2009}
}
Comments
2 pages, 4 figures, to appear in "The Evolution of Galaxies II: Basic Building Blocks", (2002) ed. M. Sauvage et al. (Kluwer)