Solar 22 years cycle

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• 作者：Valery A. Kotov ; Francis M. Sanchez
• 关键词：Sun ; photosphere ; magnetic field ; 22 years cycle
• 刊名：Astrophysics and Space Science
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：362
• 期：1
• 全文大小：
• 刊物类别：Physics and Astronomy
• 刊物主题：Astrophysics and Astroparticles; Astronomy, Observations and Techniques; Cosmology; Space Sciences (including Extraterrestrial Physics, Space Exploration and Astronautics); Astrobiology;
• 出版者：Springer Netherlands
• ISSN：1572-946X
• 卷排序：362

文摘

Seven observatories performed in 1968–2015 numerous daily measurements of general magnetic field of the Sun seen as a star (of a mean line-of-sight field component of the visible solar hemisphere). The new data 2013–2015 confirmed the recent prediction about saw-edged profile of the mean curve of the Hale’s 22 years magnetic cycle and, thus, a hypothesis about its cosmological (partial) origin. This is supported by a special analysis of epochs of extrema of Wolf’s sunspot number, demonstrating a remarkable stability, since Galileo’s time, of the initial phase of the cycle, which can hardly be explained by dynamo theory exclusively.