Fourier analysis of the light variation of L Carinae

Details Fourier analysis of the light variation of L Carinae Fourier analysis of the light variation of L Carinae

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....86..283c&link_type=abstract

Astronomy and Astrophysics, vol. 86, no. 3, June 1980, p. 283-285.

Astronomy and Astrophysics

Astrophysics

1

Cepheid Variables, Electrophotometry, Fourier Analysis, Ephemeris Time, Stellar Luminosity

Scientific paper

A Fourier analysis of 310 Photoelectric V-magnitude observations made between JD2433765 and JD2442754 gives a frequency of f = 0.0281368/d at df/dt = -2.26 x 10 to the -9th/d-squared. No evidence is found for any significant secondary frequency. The ephemeris derived from this analysis is not consistent with older observations of times of maximum, suggesting a more complex long-term behavior.

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