Quasi-periodic variation in the solar neutrino flux revisited |
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Authors: | I Liritzis |
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Institution: | (1) Research Centre for Astronomy and Applied Mathematics, Academy of Athens, 106 73 Athens, Greece |
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Abstract: | Neutrino capture rate data from the Homestake chlorine experiment (1970–1990) has been spectrally analysed. The data were smoothed by a 4-month equally-spaced sequence and by a cubic spline polynomial approximation. Fourier (FFT), maximum entropy spectrum analysis (MESA), and power spectrum analysis (PSA) employing the Blackman-Tukey window were used. The significant periodicities obtained are: 1 ± 0.1, 1.4 ± 0.2, 2.4 ± 0.2, 5 ± 0.2, and 11 ± 1.5 years. A possible correlation with similar coincident periods in other solar-terrestrial phenomena is discussed. |
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