Fourier analysis of the earliest set of observations of AM CVn

Details Fourier analysis of the earliest set of observations of AM CVn Fourier analysis of the earliest set of observations of AM CVn

Oct 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aca....42..311k&link_type=abstract

Acta Astronomica (ISSN 0001-5237), vol. 42, no. 4, p. 311-322.

Other

2

Astronomical Photometry, Fourier Analysis, Light Curve, Variable Stars, White Dwarf Stars, Power Spectra, Secular Variations, Variability

Scientific paper

The earliest photometric observations of AM CVn spanning 4 months in 1962 (Smak 1967) are Fourier analyzed. The period of the dominant 525 s harmonic cannot be uniquely determined from these observations. Such an indeterminacy seems to be due to slow period changes over the interval of four months. There is also a clear evidence for another mode with the period of 1023 or 1011 s which has been reported by Solheim et al. (1984) and Patterson et al. (1992) based on more recent sets of observations. The 1962 data do not exclude the possibility that the period of this mode is secularly constant.

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