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arXiv 0908.0813astro-ph.SR
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日冕耀斑回路中大尺度电场的产生

Generation of large scale electric fields in coronal flare circuits

Hakan Önel, Gottfried J. Mann

摘要:

在太阳耀斑期间产生大量高能电子。它们携带了耀斑释放的能量的很大一部分,但这些电子是如何产生的还没有完全弄清楚。本文提出光球活动区等离子体运动是大电流的来源。这些电流可以用宏观电路来描述。在特殊情况下,电流可以沿着磁场线在电晕中建立。当对当地条件作适当假设时,这些电流释放的能量与耀斑能量相当。

英文摘要:

A large number of energetic electrons are generated during solar flares. They carry a substantial part of the flare released energy but how these electrons are created is not fully understood yet. This paper suggests that plasma motion in an active region in the photosphere is the source of large electric currents. These currents can be described by macroscopic circuits. Under special circumstances currents can establish in the corona along magnetic field lines. The energy released by these currents when moderate assumptions for the local conditions are made, is found be comparable to the flare energy.

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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