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arXiv 0907.4842astro-ph.SR
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为什么太阳的扭转振荡在太阳黑子周期之前就开始了?

Why does the Sun's torsional oscillation begin before the sunspot cycle?

Sagar Chakraborty, Arnab Rai Choudhuri, Piyali Chatterjee

摘要:

虽然太阳的扭转振荡被认为是由与太阳黑子周期相关的洛伦兹力驱动的,但这种振荡在太阳黑子周期前2- 3年就开始了。我们提供了一个理论上的解释,这与太阳发电机模型的帮助下,有一个纬向环流穿透略低于底部的对流区,因为只有在这样的发电机模型的强大的环向场形成前几年的太阳黑子周期,并在一个较高的纬度。

英文摘要:

Although the Sun's torsional oscillation is believed to be driven by the Lorentz force associated with the sunspot cycle, this oscillation begins 2--3 yr before the sunspot cycle. We provide a theoretical explanation of this with the help of a solar dynamo model having a meridional circulation penetrating slightly below the bottom of the convection zone, because only in such dynamo models the strong toroidal field forms a few years before the sunspot cycle and at a higher latitude.

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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