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Chemical Evolution in Hierarchical Clustering Scenarios

Patricia B. Tissera, Cecilia Scannapieco

astro-pharXiv:astro-ph/0310558

Abstract

We present first results of an implementation of chemical evolution in a cosmological hydrodynamical code, focusing the analysis on the effects of cooling baryons according to their metallicity. We found that simulations with primordial cooling can underestimate the star formation rate from z < 3 and by up to ≈ 20 %. We constructed simulated spectra by combining the star formation and chemical history of galactic systems with spectra synthesis models and assess the impact of chemical evolution on the energy distribution.

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