Prompt Iron Enrichment, Two r-Process Components, and Abundances in Very Metal-Poor Stars

Preprint

30 November 1999

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/9911526

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 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 < or = 130) with Fe on a much longer timescale.

Keywords

PROCESS COMPONENTS
LIGHT R ELEMENTS
IRON ENRICHMENT
MODEL REQUIRES
PROMPT IRON
METAL POOR
POOR STARS
STARS
NO FE

All Related Versions

Version 1, 1999-11-30, ArXiv
Published version: The Astrophysical Journal, 529 (1), L21.

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