The source and engine of coronal mass ejections

doi:10.1098/rsta.2018.0094

CORC > 国家天文台 > 中国科学院国家天文台

	The source and engine of coronal mass ejections
	Georgoulis, Manolis K.1,2; Nindos, Alexander 3; Diane, Hongqi 4
刊名	PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES
	2019-07-01
卷号	377 期号:2148 页码:30
关键词	solar eruptions coronal mass ejections interpretation
ISSN号	1364-503X
DOI	10.1098/rsta.2018.0094
英文摘要	Coronal mass ejections (CMEs) are large-scale expulsions of coronal plasma and magnetic field propagating through the heliosphere. Because CMEs are observed by white-light coronagraphs which, by design, occult the solar disc, supporting disc observations (e.g. in EUV, soft X-rays, Halpha and radio) must be employed for the study of their source regions and early development phases. We review the key properties of CME sources and highlight a certain causal sequence of effects that may occur whenever a strong (flux-massive and sheared) magnetic polarity inversion line develops in the coronal base of eruptive active regions (ARs). Storing non-potential magnetic energy and helicity in a much more efficient way than ARs lacking strong polarity inversion lines, eruptive regions engage in an irreversible course, making eruptions inevitable and triggered when certain thresholds of free energy and helicity are crossed. This evolution favours the formation of pre-eruption magnetic flux ropes. We describe the steps of this plausible path to sketch a picture of the pre-eruptive phase of CMEs that may apply to most events, particularly the ones populating the high end of the energy/helicity distribution, that also tend to have the strongest space-weather implications. This article is part of the theme issue 'Solar eruptions and their space weather impact'. (C) 2019 The Author(s) Published by the Royal Society. All rights reserved.
资助项目	European Union (European Social Fun-ESF) ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; National Natural Science Foundation (NNSF) of China[11673033] ; National Natural Science Foundation (NNSF) of China[11427803] ; National Natural Science Foundation (NNSF) of China[11427901] ; Huairou Solar Observing Station, National Astronomical Observatories of China
WOS关键词	MAGNETIC HELICITY INJECTION ; SOLAR-FLARES ; FLUX-ROPE ; ACTIVE-REGION ; TRIGGER MECHANISM ; ENERGY-RELEASE ; LORENTZ FORCE ; CURRENT PATHS ; FIELD ; EVOLUTION
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	ROYAL SOC
WOS记录号	WOS:000467758600001
资助机构	European Union (European Social Fun-ESF) ; European Union (European Social Fun-ESF) ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; National Natural Science Foundation (NNSF) of China ; National Natural Science Foundation (NNSF) of China ; Huairou Solar Observing Station, National Astronomical Observatories of China ; Huairou Solar Observing Station, National Astronomical Observatories of China ; European Union (European Social Fun-ESF) ; European Union (European Social Fun-ESF) ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; National Natural Science Foundation (NNSF) of China ; National Natural Science Foundation (NNSF) of China ; Huairou Solar Observing Station, National Astronomical Observatories of China ; Huairou Solar Observing Station, National Astronomical Observatories of China ; European Union (European Social Fun-ESF) ; European Union (European Social Fun-ESF) ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; National Natural Science Foundation (NNSF) of China ; National Natural Science Foundation (NNSF) of China ; Huairou Solar Observing Station, National Astronomical Observatories of China ; Huairou Solar Observing Station, National Astronomical Observatories of China ; European Union (European Social Fun-ESF) ; European Union (European Social Fun-ESF) ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; Greek national funds through the Operational Program 'Education and Lifelong Learning' of the National Strategic Reference Framework (NSRF)-Research Funding Program: 'Thales. Investing in knowledge society through the European Social Fund' ; National Natural Science Foundation (NNSF) of China ; National Natural Science Foundation (NNSF) of China ; Huairou Solar Observing Station, National Astronomical Observatories of China ; Huairou Solar Observing Station, National Astronomical Observatories of China
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/26295]
专题	中国科学院国家天文台
通讯作者	Georgoulis, Manolis K.
作者单位	1.RCAAM Acad Athens, Athens 11527, Greece 2.Georgia State Univ, Dept Phys & Astron, Atlanta, GA 30303 USA 3.Univ Ioannina, Dept Phys, Ioannina 45110, Greece 4.Chinese Acad Sci, Natl Astron Observ, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Georgoulis, Manolis K.,Nindos, Alexander,Diane, Hongqi. The source and engine of coronal mass ejections[J]. PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES,2019,377(2148):30.
APA	Georgoulis, Manolis K.,Nindos, Alexander,&Diane, Hongqi.(2019).The source and engine of coronal mass ejections.PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES,377(2148),30.
MLA	Georgoulis, Manolis K.,et al."The source and engine of coronal mass ejections".PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES 377.2148(2019):30.