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| Review of Mercury's dynamic magnetosphere:Post-MESSENGER era and comparative magnetospheres | |
| 作者姓名： | Weijie SUN Ryan MDEWEY Sae AIZAWA Jia HUANG James A.SLAVIN Suiyan FU Yong WEI Charles F.BOWERS |
| 作者单位： | Department of Climate and Space Sciences and Engineering;Institut de Recherche en Astrophysique et Planetologie;Department of Geophysics;School of Earth and Space Sciences;Key Laboratory of Earth and Planetary Physics;School of Earth and Planetary Sciences |
| 基金项目： | supported by the National Aeronautics and Space Administration(Grant Nos.80NSSC18K1137,80NSSC21K0052);the support of CNES for the Bepi Colombo mission。 |
| 摘 要： | This review paper summarizes the research of Mercury’s magnetosphere in the Post-MESSENGER era and compares its dynamics to those in other planetary magnetospheres,especially to those in Earth’s magnetosphere.This review starts by introducing the planet Mercury,including its interplanetary environment,magnetosphere,exosphere,and conducting core.The frequent and intense magnetic reconnection on the dayside magnetopause,which is represented by the flux transfer event"shower",is reviewed on how they depend on magnetosheath plasma β and magnetic shear angle across the magnetopause,followed by how it contributes to the flux circulation and magnetosphere-surface-exosphere coupling.In the next,Mercury’s magnetosphere under extreme solar events,including the core induction and the reconnection erosion on the dayside magnetosphere,as well as the responses of the nightside magnetosphere,are reviewed.Then,the dawn-dusk properties of the plasma sheet,including the features of the ions,the structure of the current sheet,and the dynamics of magnetic reconnection,are summarized.The last topic is devoted to the particle energization in Mercury’s magnetosphere,which includes the energization of the Kelvin-Helmholtz waves on the magnetopause boundaries,reconnection-generated magnetic structures,and the cross-tail electric field.In each chapter,the last section discusses the open questions related to each topic,which can be considered by the simulations and the future spacecraft mission.We end this paper by summarizing the future Bepi Colombo opportunities,which is a joint mission of ESA and JAXA and is en route to Mercury. |
| 关 键 词： | Mercury’s magnetosphere Flux transfer event shower Extreme solar events Core induction Reconnection erosion Dawn-dusk asymmetry Substorm current wedge Particle energization Kelvin-Helmholtz wave |
Review of Mercury’s dynamic magnetosphere: Post-MESSENGER era and comparative magnetospheres |
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| Weijie SUN,Ryan MDEWEY,Sae AIZAWA,Jia HUANG,James A.SLAVIN,Suiyan FU,Yong WEI,Charles F.BOWERS.Review of Mercury's dynamic magnetosphere:Post-MESSENGER era and comparative magnetospheres[J].Science China Earth Sciences,2022,65(1):25-74. | |
| Authors: | Sun Weijie Dewey Ryan M Aizawa Sae Huang Jia Slavin James A Fu Suiyan Wei Yong Bowers Charles F |
| Institution: | 1.Department of Climate and Space Sciences and Engineering, University of Michigan, Ann Arbor, MI, 48109, USA ;2.Institut de Recherche en Astrophysique et Planétologie, CNRS-UPS-CNES, Toulouse, 31400, France ;3.Department of Geophysics, Graduate School of Science, Tohoku University, Sendai, 980-8578, Japan ;4.School of Earth and Space Sciences, Peking University, Beijing, 100871, China ;5.Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China ;6.School of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100864, China ; |
| Abstract: | Science China Earth Sciences - This review paper summarizes the research of Mercury’s magnetosphere in the Post-MESSENGER era and compares its dynamics to those in other planetary... |
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