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Orbits of Post-AGB Stars with Dusty Discs

Published online by Cambridge University Press:  09 August 2007

T. Lloyd Evans  and
H. Van Winckel
T. Lloyd Evans
Affiliation:
SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS, UK email: thhle@st-andrews.ac.uk
H. Van Winckel
Affiliation:
Instituut voor Sterrenkunde, K. U. Leuven, Celestinjenlaan 200 B, B-3301 Leuven, Belgium email: Hans.VanWinckel@ster.kuleuven.be
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Abstract

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Optical photometry and radial velocities have been obtained for stars whose near- and mid-infrared colours suggest that they have dusty circumstellar discs; many are RV Tauri variables. A subset of six stars have earlier spectral types and smaller light amplitudes than classical RV Tauri stars. All are spectroscopic binaries, with surprisingly short periods.

Keywords

Binaries: spectroscopiccircumstellar mattervariables: other
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S240: Binary Stars as Critical Tools & Tests in Contemporary Astrophysics , August 2006 , pp. 682 - 685
Copyright
Copyright © International Astronomical Union 2007

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