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Direct detection of multiple periods in variable stars

Published online by Cambridge University Press:  12 April 2016

C. Schoenaers  and
J. Cuypers
C. Schoenaers
Affiliation:
Royal Observatory of Belgium, Avenue Circulaire 3, B-1180 Brussels, Belgium
J. Cuypers
Affiliation:
Royal Observatory of Belgium, Avenue Circulaire 3, B-1180 Brussels, Belgium

Abstract

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In some observational data sets of variable stars, multiperiodicity was not always recognized as such, and only became apparent when other observational material became available. In other cases, consecutive prewhitening starting with the obviously most significant frequency could lead to a wrong multifrequency solution. A few examples illustrating this are given. Searching directly for a multifrequency solution can often remedy this. Examples are given and the results of applying this technique to a large set of Hipparcos photometric data are communicated. An overview of the multiple periodicities found in β Cephei stars and SPB stars is reported in detail.

Type
Part 4. Early-type stars: B, A and F pulsators
Information
International Astronomical Union Colloquium , Volume 193: Variable Stars in the Local Group , 2004 , pp. 283 - 286
Copyright
Copyright © Astronomical Society of the Pacific 2004

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