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arXiv 1202.4819astro-ph.SR
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EUV晚期相的起源:2010年5月5日C8 .8耀斑的个例研究

The Origin of the EUV Late Phase: A Case Study of the C8.8 Flare on 2010 May 5

R. A. Hock, T. N. Woods, J. A. Klimchuk, F. G. Eparvier, A. R. Jones

摘要:

自2010年2月11日NASA的太阳动力学观测站发射以来,极紫外线变率实验(EVE)已经观测到了许多耀斑。EVE观测到的一个有趣的特征是,在耀斑的软X射线发射数小时后,耀斑的一个子集表现出2-3百万K辐射的额外增强。从大气成像组件(AIA)的图像中,我们观察到这种被称为EUV晚期的二次发射发生在与耀斑相同的活动区域,但不是在相同的日冕环中。在这里,我们研究了2010年5月5日发生的C8.8耀斑作为EUV晚期耀斑的案例研究。除了介绍AIA和EVE的详细观测结果外,我们还开发了这种耀斑的物理模型,并使用基于焓的热演化环(EBTEL)模型对其进行测试。

英文摘要:

Since the launch of NASA's Solar Dynamics Observatory on 2010 February 11, the Extreme ultraviolet Variability Experiment (EVE) has observed numerous flares. One interesting feature observed by EVE is that a subset of flares exhibit an additional enhancement of the 2-3 million K emission several hours after the flare's soft X-ray emission. From the Atmospheric Imaging Assembly (AIA) images, we observe that this secondary emission, dubbed the EUV late phase, occurs in the same active region as the flare but not in the same coronal loops. Here, we examine the C8.8 flare that occurred on 2010 May 5 as a case study of EUV late phase flares. In addition to presenting detailed observations from both AIA and EVE, we develop a physical model of this flare and test it using the Enthalpy Based Thermal Evolution of Loops (EBTEL) model.

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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