On the possible resonance of very high order pulsation modes in Cepheids

Details On the possible resonance of very high order pulsation modes in Cepheids On the possible resonance of very high order pulsation modes in Cepheids

Jul 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009coast.158..274a&link_type=abstract

"Communications in Asteroseismology, Vol.158, p. 274 Proceedings of "38th Liege International Astrophysical Colloquium: Evoluti

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Researches on resonances between pulsation modes in Cepheids in the past twenty years allowed to interpret the characteristics of Fourier parameters of the light and radial velocity curves of such variable stars. In these works it was generally assumed that a resonance could occur between the fundamental (or first overtone) radial mode and a pulsationally stable low-order radial overtone. Some observational and theoretical model results suggest however the presence of other possible effects due to resonances between the fundamental mode and high order overtones.

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