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arxiv: astro-ph/9808190 · v1 · submitted 1998-08-19 · 🌌 astro-ph

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The Blazhko Effect in RR Lyrae stars: Strong observational support for the oblique pulsator model in three stars

The MACHO Collaboration: C. Alcock , D.R. Alves , A. Becker , D.P. Bennett , K.H. Cook , K.C. Freeman , K. Griest , D.W. Kurtz
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M.J. Lehner S.L. Marshall D. Minniti B.A. Peterson M.R. Pratt P.J. Quinn A.W. Rodgers W. Sutherland A. Tomaney T. Vandehei D.L. Welch
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classification 🌌 astro-ph
keywords starsblazhkoeffectlyraemodelobliqueobservationalpulsator
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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.

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