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Wavelet Analysis of the RV Tauri Star U Mon

Published online by Cambridge University Press:  12 April 2016

J.A. McSaveney ,
P.L. Cottrell ,
K.R. Pollard  and
J.A. Mattei
J.A. McSaveney
Affiliation:
Mount John University Observatory, Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand
P.L. Cottrell
Affiliation:
Mount John University Observatory, Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand
K.R. Pollard
Affiliation:
Mount John University Observatory, Department of Physics and Astronomy, University of Canterbury, Christchurch, New Zealand
J.A. Mattei
Affiliation:
AAVSO, 25 Birch St, Cambridge, MA 02138, USA

Abstract

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Wavelet analysis has been performed on the American Association of Variable Star Observers (AAVSO) visual estimates of the RV Tauri star U Mon from 1961-2000 using the AAVSO WWZ wavelet analysis program. Periods of 46.07, 92.40 and 2498 days are present but the 92 day period is not always detectable. A constant ratio between the amplitudes of the 46 and 92 day periods is found during one single long-term deep minimum but not another.

Type
Part 5. Mass Loss in Pulsating Stars
Information
International Astronomical Union Colloquium , Volume 185: Radial and Nonradial Pulsations as Probes of Stellar Physics , 2002 , pp. 576 - 577
Copyright
Copyright © Astronomical Society of the Pacific 2002

References

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