DOI: 10.1002/2014GL062342
论文题名: Possible observational evidence of contact discontinuities
作者: Hsieh W.-C. ; Shue J.-H. ; Chao J.-K. ; Tsai T.-C. ; Nemecek Z. ; Safrankova J.
刊名: Geophysical Research Letters
ISSN: 0094-9517
EISSN: 1944-9248
出版年: 2014
卷: 41, 期: 23 起始页码: 8228
结束页码: 8234
语种: 英语
英文关键词: contact discontinuity
; MHD jump condition
; thermal transport
Scopus关键词: Magnetic fields
; Magnetosphere
; Contact discontinuities
; Ion temperature
; Jump conditions
; Magnetic pressure
; Plasma diffusion
; Satellite data
; Thermal pressure
; Thermal transport
; Magnetoplasma
; magnetic field
; magnetic property
; magnetosphere
; plasma
; satellite data
; solar wind
英文摘要: Contact discontinuities (CDs) are discontinuities that have the continuous magnetic fields linked between two sides but no plasma flow across their surfaces. Due to a lack of the CDs evidence in observations, their stable existence is still under debate. CDs are not expected to be observed because of rapid plasma diffusion along the magnetic fields across their surfaces. In this study, we propose a feasible procedure with single-satellite data for selecting CD based on MHD jump conditions. We find two CD events, one in the solar wind and another in magnetosphere. The electron temperature is smaller than the ion temperature, and the magnetic pressure is larger than the thermal pressure in both CD events. The widths of the transition in the CD events are estimated to be 4.3 and 11.7 ion gyroradii. These two events might be CDs. Multiple spacecraft analyses are needed for further advancement in this topic. © 2014. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84921465910&doi=10.1002%2f2014GL062342&partnerID=40&md5=ffdc99fed7b407ac52e8ba1cd355bf5b
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/6781
Appears in Collections: 气候减缓与适应
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作者单位: Institute of Space Science, National Central University, Jhongli, Taiwan
Recommended Citation:
Hsieh W.-C.,Shue J.-H.,Chao J.-K.,et al. Possible observational evidence of contact discontinuities[J]. Geophysical Research Letters,2014-01-01,41(23).