Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer
Abstract The Martian magnetic pile‐up boundary (MPB) delineates the interface between the magnetosheath and the induced magnetosphere, but its global ion‐scale characteristics remaining unclear. Utilizing a three‐dimensional Hall magnetohydrodynamic (MHD) model, this study aims to reveal the feature...
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| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2025-02-01
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| Series: | Geophysical Research Letters |
| Online Access: | https://doi.org/10.1029/2024GL113340 |
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| _version_ | 1850053554816942080 |
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| author | Shibang Li Siqi Wang Haoyu Lu Jinbin Cao Xiaoshu Wu Yasong Ge James A. Wild Chuanfei Dong Nihan Chen Yihui Song Jianxuan Wang Yuchen Cao Jianing Zhao |
| author_facet | Shibang Li Siqi Wang Haoyu Lu Jinbin Cao Xiaoshu Wu Yasong Ge James A. Wild Chuanfei Dong Nihan Chen Yihui Song Jianxuan Wang Yuchen Cao Jianing Zhao |
| author_sort | Shibang Li |
| collection | DOAJ |
| description | Abstract The Martian magnetic pile‐up boundary (MPB) delineates the interface between the magnetosheath and the induced magnetosphere, but its global ion‐scale characteristics remaining unclear. Utilizing a three‐dimensional Hall magnetohydrodynamic (MHD) model, this study aims to reveal the features of the MPB layer, including magnetic field, current density, electric fields, and energy transfer between the fields and solar wind as well as planetary ions. Simulation results indicate that magnetic fields tend to pile‐up, drape, bend, and slip at the MPB, leading to the emergence of associated currents (J=1μ0∇×B) from the nightside +ZMSE electric pole and its flow toward the dayside −ZMSE electric pole along the MPB. Furthermore, energy transfer analysis demonstrates that the solar wind transfers its energy to planetary ions through the motional electric field while simultaneously acquiring some energy from the Hall and ambipolar electric fields at the MPB, resulting in an asymmetrical flow of solar wind and planetary ions. |
| format | Article |
| id | doaj-art-6f18a93aec8f4fbfb86f743f6e46d2c2 |
| institution | DOAJ |
| issn | 0094-8276 1944-8007 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Geophysical Research Letters |
| spelling | doaj-art-6f18a93aec8f4fbfb86f743f6e46d2c22025-08-20T02:52:30ZengWileyGeophysical Research Letters0094-82761944-80072025-02-01523n/an/a10.1029/2024GL113340Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary LayerShibang Li0Siqi Wang1Haoyu Lu2Jinbin Cao3Xiaoshu Wu4Yasong Ge5James A. Wild6Chuanfei Dong7Nihan Chen8Yihui Song9Jianxuan Wang10Yuchen Cao11Jianing Zhao12School of Space and Earth Sciences Beihang University Beijing ChinaSchool of Space and Earth Sciences Beihang University Beijing ChinaSchool of Space and Earth Sciences Beihang University Beijing ChinaSchool of Space and Earth Sciences Beihang University Beijing ChinaPlanetary Environmental and Astrobiological Research Laboratory (PEARL) School of Atmospheric Sciences Sun Yat‐sen University Zhuhai ChinaInstitute of Geology and Geophysics Chinese Academy of Sciences Beijing ChinaDepartment of Physics Lancaster University Lancaster UKCenter for Space Physics and Department of Astronomy Boston University Boston MA USASchool of Space and Earth Sciences Beihang University Beijing ChinaSchool of Space and Earth Sciences Beihang University Beijing ChinaSchool of Space and Earth Sciences Beihang University Beijing ChinaSchool of Space and Earth Sciences Beihang University Beijing ChinaSchool of Space and Earth Sciences Beihang University Beijing ChinaAbstract The Martian magnetic pile‐up boundary (MPB) delineates the interface between the magnetosheath and the induced magnetosphere, but its global ion‐scale characteristics remaining unclear. Utilizing a three‐dimensional Hall magnetohydrodynamic (MHD) model, this study aims to reveal the features of the MPB layer, including magnetic field, current density, electric fields, and energy transfer between the fields and solar wind as well as planetary ions. Simulation results indicate that magnetic fields tend to pile‐up, drape, bend, and slip at the MPB, leading to the emergence of associated currents (J=1μ0∇×B) from the nightside +ZMSE electric pole and its flow toward the dayside −ZMSE electric pole along the MPB. Furthermore, energy transfer analysis demonstrates that the solar wind transfers its energy to planetary ions through the motional electric field while simultaneously acquiring some energy from the Hall and ambipolar electric fields at the MPB, resulting in an asymmetrical flow of solar wind and planetary ions.https://doi.org/10.1029/2024GL113340 |
| spellingShingle | Shibang Li Siqi Wang Haoyu Lu Jinbin Cao Xiaoshu Wu Yasong Ge James A. Wild Chuanfei Dong Nihan Chen Yihui Song Jianxuan Wang Yuchen Cao Jianing Zhao Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer Geophysical Research Letters |
| title | Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer |
| title_full | Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer |
| title_fullStr | Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer |
| title_full_unstemmed | Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer |
| title_short | Ion‐Scale Characteristics of the Martian Magnetic Pile‐Up Boundary Layer |
| title_sort | ion scale characteristics of the martian magnetic pile up boundary layer |
| url | https://doi.org/10.1029/2024GL113340 |
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