The Blazhko Effect in RR Lyrae stars: Strong observational support for the oblique pulsator model in three stars
arXiv:astro-ph/9808190
Abstract
Using the novel data set of the MACHO project, we show that three ``Blazhko Effect'' RR Lyrae stars show nearly-pure amplitude modulation of a single pulsation mode. This is strong observational evidence that the ``Oblique Pulsator Model'' is the correct solution to this 90-year-old problem.
31 pages, 9 Encapsulated PostScript figures. Submitted to the Astrophysical Journal