paper

The Blazhko Effect

arXiv:0908.4536 · doi:10.1063/1.3246458

Abstract

Current status of (the lack of) understanding Blazhko effect is reviewed. We focus mostly on the various components of the failure of the models and touch upon the observational issues only at a degree needed for the theoretical background. Attention is to be paid to models based on radial mode resonances, since they seem to be not fully explored yet, especially if we consider possible non-standard effects (e.g., heavy element enhancement). To aid further modeling efforts, we stress the need for accurate time-series spectral line analysis to reveal any possible non-radial component(s) and thereby let to include (or exclude) non-radial modes in explaining the Blazhko phenomenon.

12 pages, 3 figures, paper presented at a conference held in Santa Fe, NM, USA, May 31 - June 5, 2009. To appear in 'Stellar Pulsation: Challenges for Theory and Observation', AIP, Eds.: J. Guzik and P. Bradley

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