Extracting oscillation frequencies from sparse spectra: Fourier analysis

Details Extracting oscillation frequencies from sparse spectra: Fourier analysis Extracting oscillation frequencies from sparse spectra: Fourier analysis

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008coast.157...76j&link_type=abstract

Communications in Asteroseismology, Vol.157, p. 76-81

Physics

Scientific paper

I begin by explaining the properties of spectral windows of time-series data. Emphasis is on data obtained at a single geographic longitude, but ground-based multi-longitude cam- paigns and space missions such as MOST and Hipparcos are not entirely neglected. In the second section, I consider the Fourier transform of time-series data and the procedure of pre-whitening. Sect. 3 is devoted to the pioneers of the subject. In Sect. 4, I suggest how to avoid pitfalls in the practice of periodogram-analysing variable-stars observations. In the last section, I venture an opinion.

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