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The Past and Future History of Regulus

Abstract:

We show how the recent discovery of a likely close white dwarf companion to the well known star Regulus, one of the brightest stars in the sky, leads to considerable insight into the prior evolutionary history of this star, including the cause of its current rapid rotation. We infer a relatively narrow range for the initial masses of the progenitor system: M_{10} = 2.3 +/- 0.2 M_sun and M_{20} = 1.7 +/- 0.2 M_sun, where M_{10} and M_{20} are the initial masses of the progenitors of the white ...

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Publication status:
Published

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Publisher copy:
10.1088/0004-637X/698/1/666

Authors


Rappaport, S More by this author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Astrophysics
Journal:
Astrophys.J.
Volume:
698
Issue:
1
Pages:
666-675
Publication date:
2009-04-02
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
URN:
uuid:307c0b84-dbd9-4ac5-9b84-f901fa63d5b3
Source identifiers:
15220
Local pid:
pubs:15220
Keywords:

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