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Lunar dayside curre...
Lunar dayside current in the terrestrial lobe: ARTEMIS observations
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- Zhou, X.-Z. (författare)
- Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, California, USA; Institute of Geophysics and Planetary Physics, University of California, Los Angeles, California, USA
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- Angelopoulos, V. (författare)
- Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, California, USA; Institute of Geophysics and Planetary Physics, University of California, Los Angeles, California, USA
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- Poppe, A. R. (författare)
- Space Science Laboratory, University of California, Berkeley, California, USA
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- Halekas, J. S. (författare)
- Space Science Laboratory, University of California, Berkeley, California, USA
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- Khurana, K. K. (författare)
- Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, California, USA; Institute of Geophysics and Planetary Physics, University of California, Los Angeles, California, USA
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- Kivelson, M. G. (författare)
- Department of Earth, Planetary, and Space Sciences, University of California, Los Angeles, California, USA; Institute of Geophysics and Planetary Physics, University of California, Los Angeles, California, USA
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- Fatemi, Shahab (författare)
- Swedish Institute of Space Physics, Kiruna, Sweden
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- Holmström, Mats (författare)
- Swedish Institute of Space Physics, Kiruna, Sweden
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(creator_code:org_t)
- John Wiley & Sons, 2014
- 2014
- Engelska.
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Ingår i: Journal of Geophysical Research - Space Physics. - : John Wiley & Sons. - 2169-9380 .- 2169-9402. ; 119:5, s. 3381-3391
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We report Acceleration, Reconnection, Turbulence and Electrodynamics of Moon's Interaction with the Sun (ARTEMIS) dual-probe observations of two events in the terrestrial magnetotail lobe, both characterized by upward moving heavy ions of lunar origin at one of the probes that is magnetically connected with the dayside lunar surface. By treating magnetic measurements at the other probe as the unperturbed lobe fields, we obtain background-subtracted magnetic perturbations (most significantly in Bz) when the first probe moved in the dawn-dusk direction across flux tubes magnetically connected to the Moon. These magnetic perturbations indicate the presence of field-aligned current above the lunar surface. By examining possible carriers of field-aligned current, we find that lunar heavy ions and accompanying electrons both contribute considerably to the current. Observations of the field-aligned current also suggest that the charging process at the dayside lunar surface and the associated lobe plasma environment, which have traditionally been viewed as a one-dimensional current balance problem, are actually more complicated. These observations give the first insights into how heavy ions affect the lunar dayside environment in terms of multispecies plasma dynamics.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
Nyckelord
- current balance problem
- current carriers
- field-aligned currents
- lunar dayside environment
- lunar heavy ions
- magnetotail lobe
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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