The Pulsations of Zz-Ceti Stars - Part Six - the Amplitude Spectra

Details The Pulsations of Zz-Ceti Stars - Part Six - the Amplitude Spectra The Pulsations of Zz-Ceti Stars - Part Six - the Amplitude Spectra

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.259..529b&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 259, NO. 3/DEC1, P. 529, 1992

Other

34

Stars: Oscillations, Stars: Variables: Other, White Dwarfs.

Scientific paper

Amplitude spectra of the fight curves of ZZ Ceti stars often show peaks at harmonic frequencies and at `cross-frequencies' which are related to the frequencies of the dominant peaks by expressions of the form ∣mf1 + nf2∣ where m and n are small integers and f1, f2 are the frequencies of the dominant peaks. These peaks can be understood in terms of a model of the ionization zone of a pulsating ZZ Ceti star which has been described in previous papers. For stars where the (rotational) fine structure of the amplitude spectra is resolved, comparison with the model calculations provides a means of identifying the degree l of the excited modes.

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