Energies of Electrons Accelerated in Turbulent Reconnecting Current Sheets in Solar Flares

Yuri E. Litvinenko

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Energies of Electrons Accelerated in Turbulent Reconnecting Current Sheets in Solar Flares

机译：太阳耀斑中湍流重新连接电流板中加速电子的能量

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Yohkoh observations strongly suggest that electron acceleration in solar flares occurs in magnetic reconnection regions in the corona above the soft X-ray flare loops. Unfortunately, models for particle acceleration in reconnecting current sheets predict electron energy gains in terms of the reconnection electric field and the thickness of the sheet, both of which are extremely difficult to measure. It can be shown, however, that application of Ohm's law in a turbulent current sheet, combined with energy and Maxwell's equations, leads to a formula for the electron energy gain in terms of the flare power output, the magnetic field strength, the plasma density and temperature in the sheet, and its area. Typical flare parameters correspond to electron energies between a few tens of keV and a few MeV. The calculation supports the viewpoint that electrons that generate the continuum gamma-ray and hard X-ray emissions in impulsive solar flares are accelerated in a large-scale turbulent current sheet above the soft X-ray flare loops.

机译：Yohkoh的观测强烈表明，太阳耀斑中的电子加速发生在软X射线耀斑环上方电晕的磁重连区域中。不幸的是，用于重新连接电流板的粒子加速度模型根据重新连接电场和板的厚度来预测电子能量的增加，这两者都是极其难以测量的。然而，可以证明，欧姆定律在湍流板中的应用与能量和麦克斯韦方程组相结合，得出了根据火炬功率输出，磁场强度，等离子体密度的电子能量增益公式板材的温度及其面积。典型的耀斑参数对应于几十keV和几MeV之间的电子能量。该计算支持以下观点：在软X射线耀斑环上方的大规模湍流板中，在脉冲太阳耀斑中产生连续伽玛射线和硬X射线发射的电子被加速。

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《Solar Physics》 |2003年第2期|379-388|共10页
作者
Yuri E. Litvinenko;
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Institute for the Study of Earth Oceans and Space University of New Hampshire;

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1. Electron acceleration in the turbulent reconnecting current sheets in solar flares [J] . G. P. Wu, G. L. Huang Astronomy and astrophysics . 2009,第20期

机译：太阳耀斑中湍流重新连接电流板中的电子加速度
2. On discontinuous plasma flows in the vicinity of reconnecting current sheets in solar flares [J] . Ledentsov L.S., Somov B.V. Astronomy letters . 2011,第2期

机译：在太阳耀斑中重新连接电流板附近的不连续等离子体流中
3. NUMERICAL EXPERIMENTS ON FINE STRUCTURE WITHIN RECONNECTING CURRENT SHEETS IN SOLAR FLARES [J] . Chengcai Shen, Jun Lin, Nicholas A. Murphy The Astrophysical journal . 2011,第1期

机译：太阳耀斑中重新连接电流板的精细结构的数值试验
4. Can a Single Reconnecting Current Sheet Model of a CME or a Flare Accelerate the Required Electron Fluxes Needed to Explain Non-Thermal X-ray Events Accompanying these Events? [C] . D. S. Spicer, R. Bingham Hinode Science Meeting . 2009

机译：单个重新连接CME或耀斑的当前表模型可以加速解释这些事件的非热X射线事件所需的所需的电子势次吗？
5. Faint Coronal Hard X-rays From Accelerated Electrons in Solar Flares. [D] . Glesener, Lindsay Erin. 2012

机译：太阳耀斑中加速电子发出的淡淡的日冕硬X射线。
6. Water Energy and Carbon with Artificial Neural Networks (WECANN): A statistically-based estimate of global surface turbulent fluxes and gross primary productivity using solar-induced fluorescence [O] . Seyed Hamed Alemohammad, Bin Fang, Alexandra G. Konings, -1

机译：人工神经网络（WECANN）的水能源和碳：使用太阳诱导的荧光基于统计的全球表面湍流通量和总初级生产力的估计
7. Electron acceleration in the turbulent reconnecting current sheets in solar flares [O] . G. P. Wu, G. L. Huang 2009

机译：太阳能耀斑的湍流重新连接电流板中的电子加速度
8. Influence of the Heliospheric Current Sheet and Angular Separation on Flare Accelerated Solar Wind. [R] . Henning, H. M., Scherrer, P. H., Hoeksema, J. T. 1985

机译：直升机电流片和角度分离对耀斑加速太阳风的影响。

Energies of Electrons Accelerated in Turbulent Reconnecting Current Sheets in Solar Flares

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