globalchange  > 气候减缓与适应
DOI: 10.1029/2017JA024729
Scopus记录号: 2-s2.0-85048864241
论文题名:
Reconnection in the Martian Magnetotail: Hall-MHD With Embedded Particle-in-Cell Simulations
作者: Ma Y.; Russell C.T.; Toth G.; Chen Y.; Nagy A.F.; Harada Y.; McFadden J.; Halekas J.S.; Lillis R.; Connerney J.E.P.; Espley J.; DiBraccio G.A.; Markidis S.; Peng I.B.; Fang X.; Jakosky B.M.
刊名: Journal of Geophysical Research: Space Physics
ISSN: 21699380
出版年: 2018
卷: 123, 期:5
起始页码: 3742
结束页码: 3763
语种: 英语
英文关键词: magnetic reconnection ; Martian plasma tail ; MHD EPIC
英文摘要: Mars Atmosphere and Volatile EvolutioN (MAVEN) mission observations show clear evidence of the occurrence of the magnetic reconnection process in the Martian plasma tail. In this study, we use sophisticated numerical models to help us understand the effects of magnetic reconnection in the plasma tail. The numerical models used in this study are (a) a multispecies global Hall-magnetohydrodynamic (HMHD) model and (b) a global HMHD model two-way coupled to an embedded fully kinetic particle-in-cell code. Comparison with MAVEN observations clearly shows that the general interaction pattern is well reproduced by the global HMHD model. The coupled model takes advantage of both the efficiency of the MHD model and the ability to incorporate kinetic processes of the particle-in-cell model, making it feasible to conduct kinetic simulations for Mars under realistic solar wind conditions for the first time. Results from the coupled model show that the Martian magnetotail is highly dynamic due to magnetic reconnection, and the resulting Mars-ward plasma flow velocities are significantly higher for the lighter ion fluid, which are quantitatively consistent with MAVEN observations. The HMHD with Embedded Particle-in-Cell model predicts that the ion loss rates are more variable but with similar mean values as compared with HMHD model results. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114006
Appears in Collections:气候减缓与适应

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作者单位: Department of Earth, Planetary and Space Sciences, University of California, Los Angeles, CA, United States; Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, United States; Department of Physics and Astronomy, University of Iowa, Iowa City, IA, United States; Space Sciences Laboratory, University of California, Berkeley, CA, United States; NASA Goddard Space Flight Center, Greenbelt, MD, United States; High Performance Computing and Visualization, KTH, Stockholm, Sweden; Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, Boulder, CO, United States

Recommended Citation:
Ma Y.,Russell C.T.,Toth G.,et al. Reconnection in the Martian Magnetotail: Hall-MHD With Embedded Particle-in-Cell Simulations[J]. Journal of Geophysical Research: Space Physics,2018-01-01,123(5)
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