arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1109.6496astro-ph.SRastro-ph.EPphysics.plasm-phphysics.space-ph
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X射线观测对太阳耀斑中电子加速和传播的意义

Implications of X-ray Observations for Electron Acceleration and Propagation in Solar Flares

Gordon D. Holman, Markus J. Aschwanden, Henry Aurass, Marina Battaglia, Paolo C. Grigis, Eduard P. Kontar, Wei Liu, Pascal Saint-Hilaire, Valentina V. Zharkova

摘要:

来自太阳耀斑的高能X射线和伽马射线是在五十多年前才被发现的。从那时起,在几十keV以上的能量的空间积分耀斑X射线光谱的解释标准一直是碰撞厚靶模型。在2002年初发射了拉马蒂高能太阳光谱成像仪(RHESSI)之后,X射线光谱和图像的质量已经达到了足够的水平,可以更好地关注产生X射线发射的高能电子,包括它们的起源及其与耀斑等离子体和磁场的相互作用。其结果是对耀斑过程的新见解,以及电子加速和传播以及电子相互作用的耀斑环境的更多定量模型。在这篇文章中,我们回顾了我们目前的理解电子加速,能量损失,和传播的耀斑。这些新的结果碰撞厚目标模型的影响,一般耀斑模型,并为未来的耀斑研究进行了讨论。

英文摘要:

High-energy X-rays and gamma-rays from solar flares were discovered just over fifty years ago. Since that time, the standard for the interpretation of spatially integrated flare X-ray spectra at energies above several tens of keV has been the collisional thick-target model. After the launch of the Reuven Ramaty High Energy Solar Spectroscopic Imager (RHESSI) in early 2002, X-ray spectra and images have been of sufficient quality to allow a greater focus on the energetic electrons responsible for the X-ray emission, including their origin and their interactions with the flare plasma and magnetic field. The result has been new insights into the flaring process, as well as more quantitative models for both electron acceleration and propagation, and for the flare environment with which the electrons interact. In this article we review our current understanding of electron acceleration, energy loss, and propagation in flares. Implications of these new results for the collisional thick-target model, for general flare models, and for future flare studies are discussed.

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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