Light curves of the three-mode RR Lyrae-type star AC Andromeda

Details Light curves of the three-mode RR Lyrae-type star AC Andromeda Light curves of the three-mode RR Lyrae-type star AC Andromeda

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993astl...19..242b&link_type=abstract

Astronomy Letters, Vol. 19, p. 242-246; Pis'ma v Astronomicheskij Zhurnal (ISSN 0320-0108), vol. 19, no. 7, p. 609-618. In Russ

Astronomy and Astrophysics

Astronomy

2

Light Curve, Stellar Oscillations, Variable Stars, Amplitude Distribution Analysis, Brightness Distribution, Vibration Mode

Scientific paper

Separate light curves are constructed for each oscillation of the triple-mode RR Lyrae star AC And. The nonlinearity of the interaction of the three modes is exhibited in the strong form variations of the light curves of all three oscillations; specifically, the maximum amplitude of each oscillation is observed when the two remaining ones are near maximum, and the minimum amplitude is observed when they are near minimum. The nature of the mode interaction in AC And is the same as in double mode Cepheids.

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