Detection of 160 min solar intensity variations - Sampling effect

Details Detection of 160 min solar intensity variations - Sampling effect Detection of 160 min solar intensity variations - Sampling effect

Oct 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980a%26a....90..372k&link_type=abstract

Astronomy and Astrophysics, vol. 90, no. 3, Oct. 1980, p. 372-376.

Physics

8

Infrared Spectroscopy, Solar Oscillations, Solar Radiation, Spectrum Analysis, Power Spectra, Radiation Measurement, Solar Physics

Scientific paper

The theory that the 2 h 40 min period in the Crimean and Stanford global solar velocity oscillation measurements may have resulted partly by 1-day sampling is verified using the IR center-limb intensity variations measurements. It was shown that (1) the power spectrum of these data has a peak near the 2 h 40 min period, and (2) the power spectra of the series with the observing windows 'filled' with a constant do not manifest a significant peak at the 9th harmonic of the day. It was concluded that the analysis of the really observed data is not biased by the influence of data windows and 1-day sampling regularity of observations.

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