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Small amplitude variable red giants

Published online by Cambridge University Press:  01 August 2006

D. R. Xiong  and
L. Deng
D. R. Xiong
Affiliation:
Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, email:[email protected]
L. Deng
Affiliation:
National Astronomical Observatories, Chinese Academy of Sciences, Beijing 100012, email:[email protected]
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Abstract

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Small amplitude variable red giants were discovered long time ago (Eggen 1969, Henry et al. 2000, Jorison et al. 1997). The revolutionary turning point for the study of this type of variable was due to the work of Wood (2000) and Soszyński et al. (2004) based on the very large stellar sample of the Magellanic clouds MACHO project and OGLE photometric data. By using our non-local time-dependent theory of convection (Xiong 1989), we carried out a linear stability survey for red giants with initial mass of M = 1 − 3M⊙. Explanations for the observed variabilities and analysis of mode identifications in red giant stars are presented in this work.

Keywords

Convectionstars: late-typestars: oscillations
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S239: Convection in Astrophysics , August 2006 , pp. 379 - 381
Copyright
Copyright © International Astronomical Union 2007

References

Eggen, O.J. 1969, ApJ 158, 225Google Scholar
Henry, G.W., Fekel, F.C. & Henry, S.M. 2000, ApJS, 130, 201CrossRefGoogle Scholar
Jorison, A., Mowlavi, N., Sterken, C. & Manfroid, J. 1997, A&A, 324, 578Google Scholar
Soszyński, I., Udalsky, A., Kubiak, M. et al. 2004, AcA, 54, 129Google Scholar
Wood, P.R. 2000, PASA, 17, 18CrossRefGoogle Scholar
Xiong, D.R. 1989, A&A, 209, 126Google Scholar
Xiong, D.R., Deng, L. & Cheng, Q.L. 1998, ApJ, 499, 355CrossRefGoogle Scholar
Xiong, D.R., Cheng, Q.L. & Deng, L. 1998, ApJ, 500, 449Google Scholar