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Prospective Out-of-ecliptic White-light Imaging of Interplanetary Corotating Interaction Regions at Solar Maximum
Xiong, Ming; Davies, Jackie A.; Li, Bo; Yang, Liping; Liu, Ying D.; Xia, Lidong; Harrison, Richard A.; Keiji, Hayashi; Li, Huichao; Xiong, M (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.; Xiong, M (reprint author), HIT Inst Space Sci & Appl Technol, Shenzhen, Peoples R China.; Xiong, M (reprint author), Univ Chinese Acad Sci, Beijing, Peoples R China.
Department空间科学部
Source PublicationASTROPHYSICAL JOURNAL
2017
Volume844Issue:1Pages:76
ISSN0004-637X
Language英语
KeywordMagnetohydrodynamics (Mhd) Methods: Numerical Solar Wind Sun: Corona Sun: Heliosphere
AbstractInterplanetary corotating interaction regions (CIRs) can be remotely imaged in white light (WL), as demonstrated by the Solar Mass Ejection Imager (SMEI) on board the Coriolis spacecraft and Heliospheric Imagers (HIs) on board the twin Solar TErrestrial RElations Observatory (STEREO) spacecraft. The interplanetary WL intensity, due to Thomson scattering of incident sunlight by free electrons, is jointly determined by the 3D distribution of electron number density and line-of-sight (LOS) weighting factors of the Thomson-scattering geometry. The 2D radiance patterns of CIRs in WL sky maps look very different from different 3D viewpoints. Because of the in-ecliptic locations of both the STEREO and Coriolis spacecraft, the longitudinal dimension of interplanetary CIRs has, up to now, always been integrated in WL imagery. To synthesize the WL radiance patterns of CIRs from an out-of-ecliptic (OOE) vantage point, we perform forward magnetohydrodynamic modeling of the 3D inner heliosphere during Carrington Rotation CR1967 at solar maximum. The mixing effects associated with viewing 3D CIRs are significantly minimized from an OOE viewpoint. Our forward modeling results demonstrate that OOE WL imaging from a latitude greater than 60 degrees can (1) enable the garden-hose spiral morphology of CIRs to be readily resolved, (2) enable multiple coexisting CIRs to be differentiated, and (3) enable the continuous tracing of any interplanetary CIR back toward its coronal source. In particular, an OOE view in WL can reveal where nascent CIRs are formed in the extended corona and how these CIRs develop in interplanetary space. Therefore, a panoramic view from a suite of wide-field WL imagers in a solar polar orbit would be invaluable in unambiguously resolving the large-scale longitudinal structure of CIRs in the 3D inner heliosphere.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/5983
Collection空间科学部
Corresponding AuthorXiong, M (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.; Xiong, M (reprint author), HIT Inst Space Sci & Appl Technol, Shenzhen, Peoples R China.; Xiong, M (reprint author), Univ Chinese Acad Sci, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Xiong, Ming,Davies, Jackie A.,Li, Bo,et al. Prospective Out-of-ecliptic White-light Imaging of Interplanetary Corotating Interaction Regions at Solar Maximum[J]. ASTROPHYSICAL JOURNAL,2017,844(1):76.
APA Xiong, Ming.,Davies, Jackie A..,Li, Bo.,Yang, Liping.,Liu, Ying D..,...&Xiong, M .(2017).Prospective Out-of-ecliptic White-light Imaging of Interplanetary Corotating Interaction Regions at Solar Maximum.ASTROPHYSICAL JOURNAL,844(1),76.
MLA Xiong, Ming,et al."Prospective Out-of-ecliptic White-light Imaging of Interplanetary Corotating Interaction Regions at Solar Maximum".ASTROPHYSICAL JOURNAL 844.1(2017):76.
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2017844176.pdf(6067KB)期刊论文作者接受稿开放获取CC BY-NC-SAApplication Full Text
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