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A New Method to Comprehensively Diagnose Shock Waves in the Solar Atmosphere Based on Simultaneous Spectroscopic and Imaging Observations
Ruan, Wenzhi; Yan, Limei; He, Jiansen; Zhang, Lei; Wang, Linghua; Wei, Yong; Ruan, WZ (reprint author), Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China.; Ruan, WZ (reprint author), Katholieke Univ Leuven, Dept Math, Ctr Math Plasma Astrophys, Celestijnenlaan 200B, B-3001 Leuven, Belgium.
作者部门空间科学部
发表期刊ASTROPHYSICAL JOURNAL
2018
卷号860期号:2页码:99
ISSN0004-637X
语种英语
关键词Shock Waves Sun: Atmosphere Sun: Oscillations
摘要Shock waves are believed to play an important role in plasma heating. The shock-like temporal jumps in radiation intensity and Doppler shift have been identified in the solar atmosphere. However, a quantitative diagnosis of the shocks in the solar atmosphere is still lacking, seriously hindering the understanding of shock dissipative heating of the solar atmosphere. Here, we propose a new method to realize the goal of the shock quantitative diagnosis, based on Rankine-Hugoniot equations and taking the advantages of simultaneous imaging and spectroscopic observations from, e.g., IRIS (Interface Region Imaging Spectrograph). Because of this method, the key parameters of shock candidates can be derived, such as the bulk velocity and temperature of the plasma in the upstream and downstream, the propagation speed and direction. The method is applied to the shock candidates observed by IRIS, and the overall characteristics of the shocks are revealed quantitatively for the first time. This method is also tested with the help of forward modeling, i.e., virtual observations of simulated shocks. The parameters obtained from the method are consistent with the parameters of the shock formed in the model and are independent of the viewing direction. Therefore, the method we proposed here is applicable to the quantitative and comprehensive diagnosis of the observed shocks in the solar atmosphere.
收录类别SCI
文献类型期刊论文
条目标识符http://ir.nssc.ac.cn/handle/122/6358
专题空间科学部
通讯作者Ruan, WZ (reprint author), Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China.; Ruan, WZ (reprint author), Katholieke Univ Leuven, Dept Math, Ctr Math Plasma Astrophys, Celestijnenlaan 200B, B-3001 Leuven, Belgium.
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GB/T 7714
Ruan, Wenzhi,Yan, Limei,He, Jiansen,et al. A New Method to Comprehensively Diagnose Shock Waves in the Solar Atmosphere Based on Simultaneous Spectroscopic and Imaging Observations[J]. ASTROPHYSICAL JOURNAL,2018,860(2):99.
APA Ruan, Wenzhi.,Yan, Limei.,He, Jiansen.,Zhang, Lei.,Wang, Linghua.,...&Ruan, WZ .(2018).A New Method to Comprehensively Diagnose Shock Waves in the Solar Atmosphere Based on Simultaneous Spectroscopic and Imaging Observations.ASTROPHYSICAL JOURNAL,860(2),99.
MLA Ruan, Wenzhi,et al."A New Method to Comprehensively Diagnose Shock Waves in the Solar Atmosphere Based on Simultaneous Spectroscopic and Imaging Observations".ASTROPHYSICAL JOURNAL 860.2(2018):99.
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