Discrete Fourier Analysis of the Light Curve of S Persei

Details Discrete Fourier Analysis of the Light Curve of S Persei Discrete Fourier Analysis of the Light Curve of S Persei

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004javso..32....1c&link_type=abstract

The Journal of the American Association of Variable Star Observers, vol. 32, no. 1, p. 1-8

Computer Science

2

Fourier Analysis, Light Curve, Ss Persei

Scientific paper

A discrete Fourier analysis was performed on the validated S Persei visual light curve data as obtained from the American Association of Variable Star Observers (AAVSO). These observations span just over a century, from February of 1903 to July of 2003. This analysis was an attempt to find the fundamental periods of the variability of the red supergiant S Persei. Inspection of the S Per light curve indicates a likely complex combination of sinusoids of differing periods. Using Fourier analysis, four periods of various relative strengths were extracted from these data: 745, 797, 952, and 2857 days. Although some of these periods are similar to earlier results, they seem to indicate a more complex result than has previously been determined.

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