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Title
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The Blazhko effect : facts, figures and future work
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Author
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Abstract
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| Almost a century after its discovery, the phenomenon of amplitude and/or phase modulation (Blazhko e®ect), observed in a large percentage of the RR Lyrae stars, still lacks widely acceptable theoretical understanding. Recent attempts to theoretically explain the Blazhko e®ect have focused on two alternatives: the magnetic models and the resonance models, both involving the presence of nonradial pulsation components. In the course of the past decades, large photometric data bases have yielded important statistics on the phenomenology of the Blazhko e®ect, which impose additional constraints upon the applicability of the models. On the other hand, the new approach of studying the Blazhko e®ect through line pro¯le analysis, can provide essential information on the nature of the pulsation components responsible for the modulation. The answer to this century-old question will de¯nitely clarify similar phenomena observed in other types of pulsating stars. |
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Language
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English
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Source (journal)
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Communications in asteroseismology
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Publication
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2004
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ISBN
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978-3-7001-3291-2
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DOI
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10.1553/CIA145S15
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Volume/pages
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145
(2004)
, p. 16-20
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Full text (Publisher's DOI)
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Full text (open access)
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