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A Statistical Study of the Plasma and Composition Distribution inside Magnetic Clouds: 1998-2011
Huang J(黄锦)1,2,3; Liu Y(刘煜)1,2,3; Feng HC(封海成)4; Zhao, Ake5; Abidin, Z. Z.6; Shen, Yuandeng1; Jacob, Oloketuyi1,3
Source PublicationASTROPHYSICAL JOURNAL
2020-04-01
Volume893Issue:2Pages:12
DOI10.3847/1538-4357/ab7a28
Contribution Rank第1完成单位
Indexed BySCI
KeywordSolar wind Solar coronal mass ejections Interplanetary physics Solar physics Solar storm Solar flares Solar filament eruptions Solar filaments
Abstract

A comprehensive analysis of plasma and composition characteristics inside magnetic clouds (MCs) observed by the Advanced Composition Explorer spacecraft from 1998 February to 2011 August is presented. The results show that MCs have specific interior structures, and MCs of different speeds show differences in composition and structure. Compared with the slow MCs, fast MCs have enhanced mean charge states of iron, oxygen, silicon, magnesium, O7+ O6+, C6+ C5+, C6+ C4+, and Fe. 16+ Fe total values. For ionic species in fast MCs, a higher atomic number represents a greater enhancement of mean charge state than slow MCs. We also find that both the fast and slow MCs display bimodal structure distribution in the mean iron charge state (aQnFe), which suggests that the existence of flux rope prior to the eruption is common. Furthermore, the aQnFe, Fe.16+ Fe total, and O + O +7 6 ratio distribution inside fast MCs have the feature that the posterior peak is higher than the anterior one. This result agrees with the "standard model" for coronal mass ejection/flares, by which magnetic reconnection occurs beneath the flux rope, thereby ionizing the ions of the posterior part of the flux rope sufficiently by high-energy electron collisions or by direct heating in the reconnection region.

Funding ProjectStrategic Priority Research Program of CAS[XDA-17040507] ; National Science Foundation of China[NSFC 11533009] ; National Science Foundation of China[11973086] ; Specialized Research Fund for Shandong Provincial Key Laboratory ; University of Malaya Faculty of Science grant[GPF040B-2018]
Funding OrganizationStrategic Priority Research Program of CAS[XDA-17040507] ; National Science Foundation of China[NSFC 11533009, 11973086] ; Specialized Research Fund for Shandong Provincial Key Laboratory ; University of Malaya Faculty of Science grant[GPF040B-2018]
Language英语
Subject Area天文学 ; 太阳与太阳系 ; 太阳物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000529877500001
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCORONAL MASS EJECTIONS ; SOLAR-WIND ; FLUX ROPES ; CHARGE STATES ; RECONNECTION ; MODEL ; TEMPERATURE ; SIGNATURES ; ERUPTION ; ULYSSES
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/23159
Collection选址与日冕观测组
Corresponding AuthorHuang J(黄锦)
Affiliation1.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650216, People's Republic of China
2.Shandong Provincial Key Laboratory of Optical Astronomy and Solar-Terrestrial Environment, Shandong University, Weihai 264209, People's Republic of China
3.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
4.Institute of Space Physics, Luoyang Normal University, Luoyang 471934, People's Republic of China
5.College of Physics and Electric Information, Luoyang Normal University, Luoyang 471934, People's Republic of China
6.Radio Cosmology Lab, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Corresponding Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Huang J,Liu Y,Feng HC,et al. A Statistical Study of the Plasma and Composition Distribution inside Magnetic Clouds: 1998-2011[J]. ASTROPHYSICAL JOURNAL,2020,893(2):12.
APA Huang J.,Liu Y.,Feng HC.,Zhao, Ake.,Abidin, Z. Z..,...&Jacob, Oloketuyi.(2020).A Statistical Study of the Plasma and Composition Distribution inside Magnetic Clouds: 1998-2011.ASTROPHYSICAL JOURNAL,893(2),12.
MLA Huang J,et al."A Statistical Study of the Plasma and Composition Distribution inside Magnetic Clouds: 1998-2011".ASTROPHYSICAL JOURNAL 893.2(2020):12.
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