Energetic Proton Spectra Measured by the Van Allen Probes

Danny Summers; Run Shi; Mark J. EngebretsonKjellmar OksavikJerry W. ManweilerDonald G. Mitchell

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Energetic Proton Spectra Measured by the Van Allen Probes

机译：范-艾伦的高能质子光谱测量探针

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We test the hypothesis that pitch angle scattering by electromagnetic ion cyclotron (EMIC) waves can limit ring current proton fluxes. For two chosen magnetic storms, during 17–20 March 2013 and 17–20 March 2015, we measure proton energy spectra in the region 3 ≤ L ≤ 6 using the RBSPICE-B instrument on the Van Allen Probes. The most intense proton spectra are observed to occur during the recovery periods of the respective storms. Using proton precipitation data from the POES (NOAA and MetOp) spacecraft, we deduce that EMIC wave action was prevalent at the times and L-shell locations of the most intense proton spectra. We calculate limiting ring current proton energy spectra from recently developed theory. Comparisons between the observed proton energy spectra and the theoretical limiting spectra show reasonable agreement. We conclude that the measurements of the most intense proton spectra are consistent with self-limiting by EMIC wave scattering.

机译：我们测试的假设螺距角散射通过电磁离子回旋波(位的)目前质子通量极限环。磁性风暴,在2013年3月17日—20日和2015年3月17日,我们测量质子能量光谱在该地区3 L≤≤6使用RBSPICE-B范艾伦辐射探测仪器。最强烈的质子光谱观测发生各自的经济复苏时期风暴。坡(NOAA和MetOp)宇宙飞船,我们推断出位的时间和波浪作用是普遍的l层位置的最强烈的质子光谱。从最近开发质子能量谱理论。能量谱和理论极限光谱显示合理的协议。最激烈的测量质子位的光谱与自我相一致波散射。

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《Journal of Geophysical Research, A. Space Physics: JGR》 |2017年第10期|10129-10144|共16页
作者
Danny Summers; Run Shi; Mark J. EngebretsonKjellmar OksavikJerry W. ManweilerDonald G. Mitchell;
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作者单位

Department of Mathematics and Statistics, Memorial University of Newfoundland, St. John's, Newfoundland, Canada;

Fundamental Technologies LLC, Lawrence, KS, USA;

Birkeland Centre for Space Science, Department of Physics and Technology, University of Bergen, Bergen, NorwayDepartment of Physics, Augsburg College, Minneapolis, MN, USASpace Department, The Johns Hopkins University Applied Physics Laboratory, Laurel, MD, USA;

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原文格式 PDF
正文语种英语
中图分类
关键词
Ring current (molecular); proton energy; Spectraproton spectra;

机译：环电流(分子);质子能源;Spectraproton光谱;

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Energetic Proton Spectra Measured by the Van Allen Probes

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