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Origin of Irregularities in RR Lyrae Pulsations

Published online by Cambridge University Press:  12 April 2016

Merieme Chadid
Merieme Chadid*
Affiliation:
European Southern Observatory, Alonso de Cordova, 3107, P.O. 19001, Santiago, Chile

Abstract

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For the first time important irregularities in atmospheric pulsations of RR Lyrae itself are clearly detected. They occur from one pulsation cycle to another. Their origins cannot be directly explained by the Blazhko effect. We suggest that these irregularities are mostly provoked by strong shock waves propagating within the atmosphere.

Type
Part 3. Cepheids, RR Lyrae Stars, Distance Scales
Information
International Astronomical Union Colloquium , Volume 176: The Impact of Large-Scale Surveys on Pulsating Star Research , 2000 , pp. 269 - 270
Copyright
Copyright © Astronomical Society of the Pacific 2000

References

Chadid, M. 1999, A&A, submittedGoogle Scholar
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