Abstract
We analyze the solar neutrino flux fluctuations using data from the Homestake, GALLEX, GNO, SAGE, and Super Kamiokande experiments. Spectral analysis and direct quantitative estimations show that the quasi-five-year periodicity is the most stable neutrino flux variation. Revised mean solar neutrino fluxes are presented. These are used to estimate the observed pp flux of the solar electron neutrinos near the Earth. We consider two alternative explanations for the origin of the variable component of the solar neutrino deficit.
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Original Russian Text © Yu.N. Gnedin, R.N. Ikhsanov, E.V. Miletsky, 2007, published in Pis’ma v Astronomicheskiĭ Zhurnal, 2007, Vol. 33, No. 1, pp. 52–61.
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Gnedin, Y.N., Ikhsanov, R.N. & Miletsky, E.V. On the long-period variations and magnitude of the solar neutrino flux. Astron. Lett. 33, 45–53 (2007). https://doi.org/10.1134/S1063773707010069
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DOI: https://doi.org/10.1134/S1063773707010069