Wasserburg, G. J. and Qian, Y.-Z. (2000) Prompt Iron Enrichment, Two r-Process Components, and Abundances in Very Metal-Poor Stars. Astrophysical Journal Letters, 529 (1). L21-L24. ISSN 2041-8205. https://resolver.caltech.edu/CaltechAUTHORS:20131119-095517692
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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.
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| Additional Information: | © 2000 American Astronomical Society. Received 1999 October 19; accepted 1999 November 29; published 1999 December 17. We thank Roger Blandford, Wallace Sargent, Charles Steidel, and Stan Woosley for helpful discussions and Roberto Gallino for seeking to keep us on the rich road of Ba and proper mixing. Comments by Al Cameron and John Cowan were very valuable. This work was supported in part by the Department of Energy under grants DE-FG03-88ER-13851 and DE-FG02- 87ER40328 and by NASA under grant NAG5-4076, Caltech Division Contribution 8647(1039). | |||||||||
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| Subject Keywords: | Galaxy: evolution; stars: abundances; stars: Population II | |||||||||
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| Issue or Number: | 1 | |||||||||
| Record Number: | CaltechAUTHORS:20131119-095517692 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20131119-095517692 | |||||||||
| Official Citation: | Prompt Iron Enrichment, Two r-Process Components, and Abundances in Very Metal-Poor Stars G. J. Wasserburg and Y.-Z. Qian 2000 ApJ 529 L21 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 42559 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Jason Perez | |||||||||
| Deposited On: | 20 Nov 2013 20:57 | |||||||||
| Last Modified: | 04 May 2020 18:28 |
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