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   -> Volume 7, Issue 3

Preprint: Wavelet analysis of the solar neutrino capture data
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Hans J. Haubold (

PostPosted: Mon Mar 16, 1998 8:45 pm    
Subject: Preprint: Wavelet analysis of the solar neutrino capture data
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#7 Preprint: Wavelet analysis of the solar neutrino capture data

Wavelet analysis of the new solar neutrino capture rate data for the
Homestake experiment

Author: H.J. Haubold

Abstract: Wavelet analysis offers an alternative to Fourier based
time-series analysis and is particularly useful when spectral features
are time dependent. We analyze the solar neutrino capture rate of the
radiochemical Homestake chlorine experiment with abbreviated Morlet
wavelets, using Foster's (Astronomical Journal, 111, 1709(1996))
rescaled wavelet technique. We emphasize the complementarity of
wavelet analysis to Fourier analysis. Wavelet analysis confirms the
results of previously undertaken Fourier and Lomb-Scargle
analysis. The Homestake data seem to contain a harmonic content with
periodicities of 4.76 yr, 1.89 yr, 0.85 yr, and 0.51 yr. Wavelet
analysis reveals that the 4.76 yr and 1.89 yr periods show an almost
constant behavior over the 25 yr Homestake data record, while the 0.85
yr and 0.51 yr periods exhibit a transient phenomenon. The analysis
does not show strong evidence for a period of the solar 11 yr cycle.

Status: To be published in the proceedings of the Workshop on Data
Analysis Techniques, Brazil, November 1997.

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