arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0802.3370hep-phastro-ph
收藏

GALLEX和GNO太阳中微子数据的时频分析:非对称和可变核燃烧的证据

Time-Frequency Analysis of GALLEX and GNO Solar Neutrino Data: Evidence Suggestive of Asymmetric and Variable Nuclear Burning

P. A. Sturrock

摘要:

GALLEX和GNO太阳中微子实验数据的时频分析表明,这些数据集的功率谱分析中的一些功能是由于混叠。我们归一化的GALLEX系列中的四个实验的数据,连接得到的归一化数据,然后形成时间-频率显示。我们还形成的时间-频率显示的两个主要调制的数据中发现,在11.87年-1和13.63年-1,并通过减去这些调制从实际(归一化)的数据形成的数据集。结果表明,真正的调制是,在11.87年-1,与我们先前的分析结果的Homestake太阳中微子数据。与日震学数据的比较表明,调制发生在速跃层下面的辐射区,可能是由RSFP(共振自旋-风味旋进)过程,或在核心,可能是由于核燃烧过程中的不均匀性和波动。

英文摘要:

Time-frequency analysis of data from the GALLEX and GNO solar neutrino experiments shows that some features in power-spectrum analyses of those datasets are due to aliasing. We normalize data for each of the four experiments in the GALLEX series, concatenate the resulting normalized data, and then form time-frequency displays. We also form time-frequency displays of the two principal modulations found in the data, at 11.87 yr-1 and at 13.63 yr-1, and of the datasets formed by subtracting these modulations from the actual (normalized) data. The results suggest that the true modulation is that at 11.87 yr-1, consistent with the results of our earlier analysis of Homestake solar neutrino data. Comparison with helioseismology data indicates that modulation is occurring either in the radiative zone just below the tachocline, presumably by the RSFP (resonant spin-flavor precession) process, or in the core, presumably due to inhomogeneities and fluctuations in the nuclear-burning process.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑