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The First Stars and Galaxies: Challenges for the Next Decade Participants
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Poster
Title: Galactic Chemical Evolution of the Iron Peak Elements in the Lowest Metallicity Regimes Author(s): Jennifer Sobeck Abstract: We will use the nucleosynthetic yields of Chieffi & Limongi (2004) in conjunction with a Saltpeter initial mass function (IMF) to determine the evolution of iron peak element abundances (Z = 21-28) as a function of metallicity. Since we will focus on the extremely metal poor region below [Fe/H] = -1.9, we will consider input from core collapse supernovae (SNe) only as chemical enrichment from Type Ia SNe is minimal (e. g. Kobayashi & Nomoto 2009 and references therein). For the Fe-peak elements, we will ascertain the relative agreement between theoretical yield calculations and recently-acquired observational data. We will determine the exact yield dependence on metallicity and compare our results to those from Kobayashi et al. (2006). It is our eventual goal to employ alternate IMF's and accordingly, examine the resultant effects on the iron group abundance ratios.
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