Impact line linear polarization as a diagnostic of 100 keV proton acceleration in solar flares
Impact line linear polarization as a diagnostic of 100 keV proton acceleration in solar flares
复制标题
撞击线线性偏振作为太阳耀斑中 100 keV 质子加速的诊断
DOI：
10.1086/191466
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发表时间：
1990
影响因子：
8.7
通讯作者：
S. Sahal
中科院分区：
文献类型：
--
作者：
J. Hénoux;G. Chambe;Dean F. Smith;David H. Tamres;N. Feautrier;M. Rovira;S. Sahal
提议使用色球线的碰撞线性偏振作为 100 keV 质子的诊断。对硬 X 射线发射的观察进行了检查，注意到 100 keV 质子束轰击大气可能在 X 射线发射源产生热等离子体的可能性。描述了冲击线性线偏振作为具有各向异性速度分布函数的高能粒子是否存在的诊断的应用。讨论了导致太阳色球层中质子各向异性分布的机制，并推导了日冕中加速质子所需的初始能量和能量通量。这表明可以推断日冕中原始的质子各向异性以及该各向异性对到达 H-α 形成层所需的质子能量和质子能量通量的影响。 28 参考文献
The use of impact linear polarization of chromospheric lines as a diagnostic of 100 keV protons is proposed. Observations of hard X-ray emission are examined, noting the possibility that 100 keV proton beams bombarding the atmosphere could create a hot thermal plasma at the origin of X-ray emission. The application of impact linear line polarization as a diagnostic of the existence of energetic particles with anisotropic velocity distribution functions is described. The mechanisms leading to an anisotropic proton distribution in the solar chromosphere are discussed and the required initial energy and energy flux for accelerated protons in the corona are derived. It is suggested that it is possible to infer the original proton anisotropy in the corona and the effect of this anisotropy on the proton energy and proton energy flux required to reach the H-alpha-forming layers. 28 refs.