Observational Evidence of Convective Cycles as the Cause of the Blazhko Effect in RR Lyrae Stars

Richard B. Stothers
2010 Publications of the Astronomical Society of the Pacific  
Among RR Lyrae stars displaying the Blazhko effect, a few show no period modulation in spite of striking changes in their light amplitudes. This anomalous behavior and the mean period of the affected variables are predicted correctly by the theory of slow convective cycles in the stellar envelope.
doi:10.1086/652909 fatcat:y2gwixaogvhnlcxkalht32ypi4