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Relations Between Microwave Bursts and Near-Earth High-Energy Proton Enhancements and Their Origin

机译:微波爆裂与近地高能质子增强的关系及其成因

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We further study the relations between parameters of bursts at 35 GHz recorded with the Nobeyama Radio Polarimeters during 25 years and solar proton events (Grechnev et al. in Publ. Astron. Soc. Japan 65, S4, 2013a). Here we address the relations between the microwave fluences at 35 GHz and near-Earth proton fluences above 100 MeV to find information on their sources and evaluate their diagnostic potential. The correlation between the microwave and proton fluences is pronouncedly higher than between their peak fluxes. This probably reflects a dependence of the total number of protons on the duration of the acceleration process. In events with strong flares, the correlation coefficients of high-energy proton fluences with microwave and soft X-ray fluences are higher than those with the speeds of coronal mass ejections. The results indicate a statistically larger contribution of flare processes to high-energy proton fluxes. Acceleration by shock waves seems to be less important at high energies in events associated with strong flares, although its contribution is probable and possibly prevails in weaker events. The probability of a detectable proton enhancement was found to directly depend on the peak flux, duration, and fluence of the 35 GHz burst, while the role of the Big Flare Syndrome might have been overestimated previously. Empirical diagnostic relations are proposed.
机译:我们进一步研究了25年间用Nobeyama射电极化仪记录的35 GHz突发信号参数与太阳质子事件之间的关系(Grechnev等人,发表于日本公共科学杂志65,S4,2013a)。在这里,我们讨论35 GHz微波通量和100 MeV以上的近地质子通量之间的关系,以找到有关其来源的信息并评估其诊断潜力。微波和质子注量之间的相关性明显高于其峰值通量之间的相关性。这可能反映了质子总数对加速过程持续时间的依赖性。在耀斑强烈的事件中,高能质子注量与微波和软X射线注量的相关系数高于日冕质量抛射速度的相关系数。结果表明,耀斑过程在统计上对高能质子通量的贡献更大。在高能量下,与强烈的耀斑有关的事件中,冲击波的加速度似乎不那么重要,尽管它的贡献很可能发生,并且在较弱的事件中可能占主导。发现可检测的质子增强的可能性直接取决于35 GHz爆发的峰值通量,持续时间和能量密度,而以前可能已经高估了大耀斑综合症的作用。提出了经验诊断关系。

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