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Sökning: WFRF:(Klinger C) > (2020-2023) > An Eastward Current...

An Eastward Current Encircling Mercury

Shi, Z. (författare)
Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China
Rong, Z.J. (författare)
Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Mohe Observatory of Geophysics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Fatemi, Shahab (författare)
Umeå universitet,Institutionen för fysik
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Slavin, J.A. (författare)
Department of Climate and Space Sciences and Engineering, University of Michigan, MI, Ann Arbor, United States
Klinger, L. (författare)
Beijing International Center for Mathematical Research, Peking University, Beijing, China
Dong, C. (författare)
Princeton Plasma Physics Laboratory, Princeton University, NJ, Princeton, United States; Department of Astrophysical Sciences, Princeton University, NJ, Princeton, United States
Wang, L. (författare)
Princeton Plasma Physics Laboratory, Princeton University, NJ, Princeton, United States; Department of Astrophysical Sciences, Princeton University, NJ, Princeton, United States
Zhong, J. (författare)
Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Mohe Observatory of Geophysics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Raines, J.M. (författare)
Department of Climate and Space Sciences and Engineering, University of Michigan, MI, Ann Arbor, United States
Holmström, M. (författare)
Swedish Institute of Space Physics, Kiruna, Sweden
Yuan, C.J. (författare)
Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Mohe Observatory of Geophysics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
Barabash, S. (författare)
Swedish Institute of Space Physics, Kiruna, Sweden
Wei, Y. (författare)
Key Laboratory of Earth and Planetary Physics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, China; Mohe Observatory of Geophysics, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China
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 (creator_code:org_t)
American Geophysical Union (AGU), 2022
2022
Engelska.
Ingår i: Geophysical Research Letters. - : American Geophysical Union (AGU). - 0094-8276 .- 1944-8007. ; 49:10
Relaterad länk:
https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
https://urn.kb.se/re...
https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • Mercury has a terrestrial-like magnetosphere which is usually taken as a scaled-down-version of Earth's magnetosphere with a similar current system. We examine Mercury's magnetospheric current system based on a survey of Mercury's magnetic field measured by the Mercury Surface, Space Environment, Geochemistry, and Ranging spacecraft as well as computer simulations. We show that there is no significant Earth-like ring current flowing westward around Mercury, instead, we find, for the first time, an eastward current (EC) encircling the planet near the night-side magnetic equator with an altitude of ∼500–1,000 km. The EC is closed with the dayside magnetopause current and could be driven by the gradient of plasma pressure as a diamagnetic current. Thus, Mercury's magnetosphere is not a scaled-down Earth magnetosphere, but a unique natural space plasma laboratory. Our findings offer fresh insights to analyze data from the BepiColombo mission, which is expected to orbit Mercury in 2025.

Ämnesord

NATURVETENSKAP  -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)

Nyckelord

eastward current
Hermean magnetosphere
Mercury

Publikations- och innehållstyp

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art (ämneskategori)

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