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Radial velocity monitoring of possible close red giant binary systems

Abstract:

MACHO observations show that approximately 25% of semi-regular red variables in the LMC have a secondary period similar to10 times longer than the primary period of pulsation, which is usually the first overtone pulsation mode in these stars. Wood et al. (1999) have suggested that the long secondary periods (LSPs) may be due to the presence of a binary companion and associated dust cloud whose orbital period matches that of the LSP. In this poster, preliminary results of an investigation aime...

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Publication status:
Published

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Journal:
EVOLUTION OF BINARY AND MULTIPLE STAR SYSTEMS More from this journal
Volume:
229
Pages:
233-236
Publication date:
2001-01-01
Event title:
Conference on Evolution of Binary and Multiple Star Systems
ISBN:
1583810617
Pubs id:
pubs:16114
UUID:
uuid:8fb1773c-407a-4319-be04-46878a8ed885
Local pid:
pubs:16114
Source identifiers:
16114
Deposit date:
2012-12-19

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