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arXiv 1105.1335astro-ph.SRnucl-ex
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太阳对核衰变速率影响的进一步证据

Further Evidence Suggestive of a Solar Influence on Nuclear Decay Rates

Peter A. Sturrock, Ephraim Fischbach, Jere H. Jenkins

备注：
12 pages, 6 figures, v2 has a color corrected Fig 6, a corrected reference, and a corrected typo
发表信息：
(2011) Solar Physics 272(1): 1-10
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摘要：

最近对核衰变数据的分析显示出了暗示太阳影响的变化的证据。对布鲁克海文国家实验室（BNL）和联邦物理技术研究所（PTB）获得的数据集的分析都显示出年周期性和恒星频率在12.25年左右的周期性（我们估计的显著性水平为10^{-17}）。值得注意的是，这意味着旋转速率低于太阳辐射区的旋转速率，暗示太阳核心旋转缓慢。这使我们假设，可能有一个“内速跃层”分离的核心从辐射区，类似于“外速跃层”分离的辐射区从对流区。Rieger周期（其周期约为154天，对应于2.37年^{-1}的频率）可归因于位于外速跃层中的球谐指数l=3，m=1的r型振荡。这表明，我们可以通过搜索BNL和PTB数据来检验太阳对核衰变速率的影响的假设，以寻找在内部速跃层中的“类Rieger”r模式振荡（l=3，m=1）的证据。估计这种振荡的适当搜索波段为2.00-2.28年^{-1}。我们发现，在这两个数据集，在2.11年^{-1}的周期性的强有力的证据。我们估计偶然获得这些结果的概率为10^{-12}。

英文摘要：

Recent analyses of nuclear decay data show evidence of variations suggestive of a solar influence. Analyses of datasets acquired at the Brookhaven National Laboratory (BNL) and at the Physikalisch-Technische Bundesanstalt (PTB) both show evidence of an annual periodicity and of periodicities with sidereal frequencies in the neighborhood of 12.25 year^{-1} (at a significance level that we have estimated to be 10^{-17}). It is notable that this implied rotation rate is lower than that attributed to the solar radiative zone, suggestive of a slowly rotating solar core. This leads us to hypothesize that there may be an "inner tachocline" separating the core from the radiative zone, analogous to the "outer tachocline" that separates the radiative zone from the convection zone. The Rieger periodicity (which has a period of about 154 days, corresponding to a frequency of 2.37 year^{-1}) may be attributed to an r-mode oscillation with spherical-harmonic indices l=3, m=1, located in the outer tachocline. This suggests that we may test the hypothesis of a solar influence on nuclear decay rates by searching BNL and PTB data for evidence of a "Rieger-like" r-mode oscillation, with l=3, m=1, in the inner tachocline. The appropriate search band for such an oscillation is estimated to be 2.00-2.28 year^{-1}. We find, in both datasets, strong evidence of a periodicity at 2.11 year^{-1}. We estimate that the probability of obtaining these results by chance is 10^{-12}.

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