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arXiv 1910.03319astro-ph.SRphysics.space-ph
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利用远程和原位观测和建模对太阳爆发的综合表征:2015年11月4日的主要太阳事件

Comprehensive Characterization of Solar Eruptions With Remote and In-Situ Observations, and Modeling: The Major Solar Events on 4 November 2015

Iver H. Cairns, Kamen A. Kozarev, Nariaki V. Nitta, Neus Agueda, Markus Battarbee, Eoin P. Carley, Nina Dresing, Raul Gomez-Herrero, Karl-Ludwig Klein, David La… 展开作者

Iver H. Cairns, Kamen A. Kozarev, Nariaki V. Nitta, Neus Agueda, Markus Battarbee, Eoin P. Carley, Nina Dresing, Raul Gomez-Herrero, Karl-Ludwig Klein, David Lario, Jens Pomoell, Carolina Salas-Matamoros, Astrid M. Veronig, Bo Li, Patrick McCauley

摘要:

太阳高能粒子是太阳活动的重要产物。它们与太阳活动区和耀斑、日冕物质抛射(CME)、EUV波、冲击、II型和III型无线电发射以及X射线爆发有关。这些现象是太阳爆发能量分配的主要探测器,也是日冕和行星际磁场的组织、动力学和弛豫的主要探测器。其中许多现象造成地面空间天气,从空间到地面对人类及其技术构成多重危险。由于特定的耀斑、激波、日冕物质抛射和极紫外波会产生SEP事件,而其他的则不会,由于从低日冕到1天文单位的传播效应对某些事件来说很重要,而对其他事件来说则不重要,由于II型和III型射电发射和X射线爆发有时是由离开这些加速地点的高能粒子产生的,有必要从多频率和多仪器的角度研究整个系统,将现场和远程观测与详细的现象建模相结合。本文通过分析2015年11月4日发生的三次不寻常和引人注目的太阳爆发,无线电和X射线爆发以及SEP事件来展示这种综合方法,并显示其必要性。这些事件显示出与标准事件以及彼此之间的强烈相似性和差异性,尽管它们具有非常相似的行星际条件,并且只有两个是站点和CME成因区域。因此,它们是进一步深入观察研究的主要目标,也是测试现有和新理论和模型的主要目标。基于非常有限的建模,我们确定的方面,不理解,我们讨论的想法,可能会导致更好地了解SEP,无线电和空间天气事件。

英文摘要:

Solar energetic particles (SEPs) are an important product of solar activity. They are connected to solar active regions and flares, coronal mass ejections (CMEs), EUV waves, shocks, Type II and III radio emissions, and X-ray bursts. These phenomena are major probes of the partition of energy in solar eruptions, as well as for the organization, dynamics, and relaxation of coronal and interplanetary magnetic fields. Many of these phenomena cause terrestrial space weather, posing multiple hazards for humans and their technology from space to the ground. Since particular flares, shocks, CMEs, and EUV waves produce SEP events but others do not, since propagation effects from the low corona to 1 AU appear important for some events but not others, and since Type II and III radio emissions and X-ray bursts are sometimes produced by energetic particles leaving these acceleration sites, it is necessary to study the whole system with a multi-frequency and multi-instrument perspective that combines both in-situ and remote observations with detailed modelling of phenomena. This article demonstrates this comprehensive approach, and shows its necessity, by analysing a trio of unusual and striking solar eruptions, radio and X-ray bursts, and SEP events that occurred on 4 November 2015. These events show both strong similarities and differences from standard events and each other, despite having very similar interplanetary conditions and only two are sites and CME genesis regions. They are therefore major targets for further in-depth observational studies, and for testing both existing and new theories and models. Based on the very limited modelling available we identify the aspects that are and are not understood, and we discuss ideas that may lead to improved understanding of the SEP, radio, and space-weather events.

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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