Unusual Location of the Geotail Magnetopause Near Lunar Orbit: A Case Study
Alternative TitleWOS:000536831100012
Shang, W. S.; Tang, B. B.; Shi, Q. Q.; Tian, A. M.; Zhou, X-Y; Yao, Z. H.; Degeling, A. W.; Rae, I. J.; Fu, S. Y.; Lu, J. Y.; Pu, Z. Y.; Fazakerley, A. N.; Dunlop, M. W.; Facsko, G.; Liu, J.; Wang, M.
AbstractThe Earth's magnetopause is highly variable in location and shape and is modulated by solar wind conditions. On 8 March 2012, the ARTEMIS probes were located near the tail current sheet when an interplanetary shock arrived under northward interplanetary magnetic field conditions and recorded an abrupt tail compression at similar to(-60, 0, -5) R-E in Geocentric Solar Ecliptic coordinate in the deep magnetotail. Approximately 10 minutes later, the probes crossed the magnetopause many times within an hour after the oblique interplanetary shock passed by. The solar wind velocity vector downstream from the shock was not directed along the Sun-Earth line but had a significant Y component. We propose that the compressed tail was pushed aside by the appreciable solar wind flow in the Y direction. Using a virtual spacecraft in a global magnetohydrodynamic (MHD) simulation, we reproduce the sequence of magnetopause crossings in the X-Y plane observed by ARTEMIS under oblique shock conditions, demonstrating that the compressed magnetopause is sharply deflected at lunar distances in response to the shock and solar wind V-Y effects. The results from two different global MHD simulations show that the shocked magnetotail at lunar distances is mainly controlled by the solar wind direction with a timescale of about a quarter hour, which appears to be consistent with the windsock effect. The results also provide some references for investigating interactions between the solar wind/magnetosheath and lunar nearside surface during full moon time intervals, which should not happen in general.
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Document Type期刊论文
Affiliation1.[Shang, W. S.
2.Shi, Q. Q.
3.Tian, A. M.
4.Degeling, A. W.] Shandong Univ, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Inst Space Sci, Sch Space Sci & Phys, Weihai, Peoples R China
5.[Shang, W. S.
6.Tang, B. B.
7.Shi, Q. Q.] Chinese Acad Sci, Ctr Space & Appl Res, State Key Lab Space Weather, Beijing, Peoples R China
8.[Shang, W. S.
9.Lu, J. Y.
10.Wang, M.] Nanjing Univ Informat Sci & Technol, Inst Space Weather, Nanjing, Peoples R China
11.[Zhou, X-Y
12.Liu, J.] Univ Calif Los Angeles, Earth Planetary & Space Sci, Los Angeles, CA USA
13.[Yao, Z. H.] Univ Liege, Lab Phys Atmospher & Planetaire, STAR Inst, Liege, Belgium
14.[Rae, I. J.
15.Fazakerley, A. N.] UCL Mullard Space Sci Lab, Dorking RH5 6NT, Surrey, England
16.[Fu, S. Y.
17.Pu, Z. Y.] Peking Univ, Sch Earth & Space Sci, Beijing, Peoples R China
18.[Dunlop, M. W.] Rutherford Appleton Lab, Space Sci Div, SSTD, Didcot, Oxon, England
19.[Facsko, G.] Rhea Syst GmbH, Darmstadt, Germany
Recommended Citation
GB/T 7714
Shang, W. S.,Tang, B. B.,Shi, Q. Q.,et al. Unusual Location of the Geotail Magnetopause Near Lunar Orbit: A Case Study[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2020,125(4):e2019JA027401.
APA Shang, W. S..,Tang, B. B..,Shi, Q. Q..,Tian, A. M..,Zhou, X-Y.,...&Wang, M..(2020).Unusual Location of the Geotail Magnetopause Near Lunar Orbit: A Case Study.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,125(4),e2019JA027401.
MLA Shang, W. S.,et al."Unusual Location of the Geotail Magnetopause Near Lunar Orbit: A Case Study".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 125.4(2020):e2019JA027401.
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