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X-ray imaging of Kelvin-Helmholtz waves at the magnetopause
Sun, T. R.; Wang, C.; Wei, F.; Sembay, S.; Sun, TR (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
Department空间科学部
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
2015
Volume120Issue:1Pages:266-275
ISSN2169-9380
Language英语
KeywordKelvin-helmholtz Instability X-ray Mhd Simulation Magnetopause Boundary Layer
AbstractThis paper simulates the Kelvin-Helmholtz wave (KHW)-induced X-ray emissions at the low-latitude magnetopause based on a global MHD code. A method is proposed to extract the KHW information from the X-ray intensity measured by a hypothetical X-ray telescope onboard a satellite assumed with a low Earth orbit. Specifically, the X-ray intensity at high latitude is subtracted from the intensity map as a background to highlight the role of KHW. Using this method, global features of KHW such as the vortex velocity, perturbation degree, spatial distribution, and temporal evolution could be evaluated from the X-ray intensity map. The validity of this method during intervals of solar wind disturbances is also verified. According to the simulation results, X-ray imaging of KHW is suggested as a promising observation technique to essentially see the large-scale configuration and evolution of KHW for the first time.
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/4614
Collection空间科学部
Corresponding AuthorSun, TR (reprint author), Chinese Acad Sci, Natl Space Sci Ctr, State Key Lab Space Weather, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Sun, T. R.,Wang, C.,Wei, F.,et al. X-ray imaging of Kelvin-Helmholtz waves at the magnetopause[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2015,120(1):266-275.
APA Sun, T. R.,Wang, C.,Wei, F.,Sembay, S.,&Sun, TR .(2015).X-ray imaging of Kelvin-Helmholtz waves at the magnetopause.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,120(1),266-275.
MLA Sun, T. R.,et al."X-ray imaging of Kelvin-Helmholtz waves at the magnetopause".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 120.1(2015):266-275.
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