Galaxy Evolution tool: Construction and Applications

Details Galaxy Evolution tool: Construction and Applications Galaxy Evolution tool: Construction and Applications

2002-05-15

arxiv.org/abs/astro-ph/0205249v1

Astrophys.Space Sci. 281 (2002) 537-538

Astronomy and Astrophysics

Astrophysics

2 pages, 4 figures, to appear in "The Evolution of Galaxies II: Basic Building Blocks", (2002) ed. M. Sauvage et al. (Kluwer)

Scientific paper

10.1023/A:1019598212397

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.

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