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Title
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An alternative mathematical treatment of the modulated RR Lyrae stars
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Author
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Abstract
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| We present a different analytical description of the Blazhko RR Lyrae stars's light curves in which we take into account both the amplitude and phase modulation directly. Its main advantages compared to the usual description are that it explains global light curve behaviours such as average brightness variation, non-linear shape of the envelope curve, non-sinusoidal frequency variation (see [1]). Its spectra show Fourier properties such as higher order side frequencies, uneven amplitudes of side peaks, larger amplitudes of higher order peaks than the lower order ones, appearing the modulation frequency itself and its harmonics. It also reduces the number of necessary parameters by a factor of 10. |
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Language
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English
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Source (journal)
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AIP conference proceedings / American Institute of Physics. - New York
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Source (book)
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International Conference on Stellar Pulsation - Challenges for Theory, and Observation, MAY 31-JUN 05, 2009, Santa Fe, NM
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Publication
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Melville
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Amer inst physics
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2009
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ISBN
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978-0-7354-0707-7
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DOI
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10.1063/1.3246490
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Volume/pages
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1170
(2009)
, p. 273-275
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ISI
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000280126200061
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Full text (Publisher's DOI)
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