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A stellar endgame - the born-again Sakurai's object

Asplund, Martin; Gustafsson, Bengt; Lambert, David L; Rao, N.Kameswara

Description

The surface chemical composition of this remarkable star shows that it is hydrogen-deficient, carbon-rich and enriched in the light s-process elements. Spectra taken in May and October 1996 indicate a decrease in the surface hydrogen abundance by 0.7dex in five months along with an increase in the abundances of Li, Sr, Y and Zr. The abundance changes are in agreement with the hypothesis of the star being a rapidly evolving "born-again" AGB star experiencing a final He-shell flash, similar to...[Show more]

CollectionsANU Research Publications
Date published: 1997
Type: Journal article
URI: http://hdl.handle.net/1885/40072
http://digitalcollections.anu.edu.au/handle/1885/40072

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