Prompt Iron Enrichment, Two [ITAL]r[/ITAL]-Process Components, and Abundances in Very Metal-Poor Stars
Open Access
- 20 January 2000
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 529 (1), L21-L24
- https://doi.org/10.1086/312455
Abstract
We present a model to explain the wide range of abundances for heavy r-process elements (mass number A > 130) at low [Fe/H]. This model requires rapid star formation and/or an initial population of supermassive stars in the earliest condensed clots of matter in order to provide a prompt or initial Fe inventory. Subsequent Fe and r-process enrichment was provided by two types of supernovae: one producing heavy r-elements with no Fe on a rather short timescale and the other producing light r-elements (A ≤ 130) with Fe on a much longer timescale.Keywords
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