Magnetic Hole and Its Resultant Electron Pitch‐Angle Distribution at Jupiter

Abstract Magnetic hole (MH), sometimes referred to as magnetic bottle, exhibits strong magnetic fields at its neck but weak magnetic fields at its belly. Such structure has been widely reported in the solar wind and the Earth's magnetosphere, but has not been reported at Jupiter. Here, for the first time, we report two MHs in the Jupiter's magnetosphere by utilizing measurements of the Juno mission, with one existing in the dawn side and the other existing in the dusk side. We find that the electron pitch‐angle distribution inside the MHs can be either cigar‐type or pancake‐type. The cigar‐type distribution probably appears at the belly of the MH, whereas the pancake‐type distribution probably appears at the neck. Our analyses of the depression of magnetic fields inside the MHs support such a conjunction. These results have advanced our understanding of the transient structure and its related electron dynamics in the giant planets' magnetosphere.

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Publication Details

Journal
Geophysical Research Letters
Published
2024-10-16
DOI
https://doi.org/10.1029/2024gl111372
Citations
5
Primary Topic
Astro and Planetary Science
Type
article
Field-Weighted Citation Impact
1.66

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article

Magnetic Hole and Its Resultant Electron Pitch‐Angle Distribution at Jupiter

Zhenyan Guo, C. Q. Wang, Z. Wang, Binbin Ni et al.
5 citations
Geophysical Research Letters
Astro and Planetary Science
1.66
article

Magnetic Hole and Its Resultant Electron Pitch‐Angle Distribution at Jupiter

Zhenyan Guo, C. Q. Wang, Z. Wang, Binbin Ni, T. R. Sun, Binzheng Zhang, Jinbin Cao, H. S. Fu, Yong Wei, Zhonghua Yao, H. Lan, Wen Fu
article en
5 citations

Abstract

Abstract Magnetic hole (MH), sometimes referred to as magnetic bottle, exhibits strong magnetic fields at its neck but weak magnetic fields at its belly. Such structure has been widely reported in the solar wind and the Earth's magnetosphere, but has not been reported at Jupiter. Here, for the first time, we report two MHs in the Jupiter's magnetosphere by utilizing measurements of the Juno mission, with one existing in the dawn side and the other existing in the dusk side. We find that the electron pitch‐angle distribution inside the MHs can be either cigar‐type or pancake‐type. The cigar‐type distribution probably appears at the belly of the MH, whereas the pancake‐type distribution probably appears at the neck. Our analyses of the depression of magnetic fields inside the MHs support such a conjunction. These results have advanced our understanding of the transient structure and its related electron dynamics in the giant planets' magnetosphere.

Geophysical Research LettersVol. 51(20)
Chinese Academy of Sciences (CN), Wuhan University (CN), National Space Science Center (CN), Center for Excellence in Molecular Cell Science (CN), Institute of Geology and Geophysics (CN), University of Chinese Academy of Sciences (CN), Beihang University (CN), University of Hong Kong (HK), Ministry of Industry and Information Technology (CN)
National Natural Science Foundation of China, Fundamental Research Funds for the Central Universities
Openalex Percentile: Top 16%
Astro and Planetary Science
1.66
DOIOpen Access PDFOpenAlex
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