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arXiv 1010.0261astro-ph.SR
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Mount Wilson太阳直径测量的功率谱分析:太阳内部R模式振荡的证据

Power Spectrum Analysis of Mount-Wilson Solar Diameter Measurements: Evidence for Solar Internal R-mode Oscillations

Peter A. Sturrock, Luca Bertello

摘要:

本文对威尔逊山天文台1968.670 - 1997.965年39,024次太阳直径测量结果进行了功率谱分析。该功率谱包含许多非常强的峰。我们发现,这些峰值中的8个与太阳的恒星旋转频率为12.08年$^{-1}$的区域的r-模式振荡的频率密切相关。我们估计,偶然发现这种模式的概率不到十分之一。

英文摘要:

This article presents a power-spectrum analysis of 39,024 measurements of the solar diameter made at the Mount Wilson Observatory from 1968.670 to 1997.965. This power spectrum contains a number of very strong peaks. We find that eight of these peaks agree closely with the frequencies of r-mode oscillations for a region of the Sun where the sidereal rotation frequency is 12.08 year$^{-1}$. We estimate that there is less than one chance in ten to the sixth power of finding this pattern by chance.

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。

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