Observation of the parametric resonance in AH Camelopardalis, an RR Lyrae-type star with the Blazhko effect

Details Observation of the parametric resonance in AH Camelopardalis, an RR Lyrae-type star with the Blazhko effect Observation of the parametric resonance in AH Camelopardalis, an RR Lyrae-type star with the Blazhko effect

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989azh....66...84g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 66, Jan.-Feb. 1989, p. 84-95. In Russian.

Astronomy and Astrophysics

Astronomy

2

Blue Stars, Giant Stars, Orbital Resonances (Celestial Mechanics), Stellar Radiation, Variable Stars, Eigenvalues, Light Curve, Stellar Envelopes

Scientific paper

The Blazhko effect with a period of 11.0 + or - 2 d was detected in AH Cam on the basis of photoelectric B and V observations. A secondary wave with a period of 0.18128 was detected in the light curve; this is shorter than the basic period (0.36873 d) by a factor of 2. The complex interaction of the two waves in the star shell is interpreted as the parametric excitation of motion in the third overtone.

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