R-process enrichment from a single event in an ancient dwarf galaxy

Alexander P. Ji (), Anna Frebel, Anirudh Chiti and Joshua D. Simon
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Alexander P. Ji: Massachusetts Institute of Technology
Anna Frebel: Massachusetts Institute of Technology
Anirudh Chiti: Massachusetts Institute of Technology
Joshua D. Simon: Observatories of the Carnegie Institution of Washington

Nature, 2016, vol. 531, issue 7596, 610-613

Abstract: It has long been debated whether elements heavier than zinc are formed continually, for example in core-collapse supernovae, or in rare events, such as neutron star mergers; here, studies of element abundances in a local ultrafaint dwarf galaxy provide evidence that these elements are formed during rare yet prolific stellar events.

Date: 2016
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DOI: 10.1038/nature17425

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