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The Extended Atmosphere and Evolution of the RV Tau Star R Scuti

Published online by Cambridge University Press:  26 May 2016

M. Matsuura
Affiliation:
Dep. of Physics, UMIST, P.O. Box 88, Manchester M60 1QD, UK
A. A. Zijlstra
Affiliation:
Dep. of Physics, UMIST, P.O. Box 88, Manchester M60 1QD, UK
I. Yamamura
Affiliation:
ISAS, Yoshino-dai 3-1-1, Sagamihara, Kanagawa, 229-8510, Japan
T. R. Bedding
Affiliation:
School of Physics, University of Sydney 2006, Australia

Abstract

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We identify H2O, CO, SiO and CO2 bands in near-infrared ISO/SWS spectra of the RV Tau star R Sct. These molecules originate from an atmosphere around the photosphere. RV Tau stars are commonly considered as post-AGB stars. We argue that R Sct may be a thermal-pulsing AGB star, observed in a helium-burning phase.

Type
Part III: Planetary Nebulae in the Scheme of Stellar Evolution
Copyright
Copyright © Astronomical Society of the Pacific 2003 

References

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Matsuura, M., Yamamura, I., Zijlstra, A.A., Bedding, T.R., 2002, A&A submitted Google Scholar