Amplitudes of light curves of double-mode Cepheids

Details Amplitudes of light curves of double-mode Cepheids Amplitudes of light curves of double-mode Cepheids

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992sval...18..398b&link_type=abstract

Soviet Astronomy Letters, Vol. 18, p. 398; Pis'ma v Astronomicheskii Zhurnal (ISSN 0320-0108), vol. 18, no. 11, p. 975-990. In

Astronomy and Astrophysics

Astronomy

4

Amplitude Distribution Analysis, Cepheid Variables, Light Curve, Stellar Oscillations, Optical Filters, Variable Stars

Scientific paper

Maximum and minimum amplitudes of both oscillations of all the 14 known double-mode Cepheids (DMCs) are determined in B, V, R, and I filters. Mathematical and graphical relations between amplitudes, between amplitudes and periods, and between amplitudes and wavelength are given. Application of the method of principal components showed that the DMC group can be separated into two subgroups: long-period DMCs and short-period DMCs, which are probably associated genetically with s-Cepheids and single-mode classical Cepheids, respectively.

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