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Survey of Saturn Z-...
Survey of Saturn Z-mode emission
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- Menietti, J. D. (författare)
- Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
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- Averkamp, T. F. (författare)
- Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
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Ye, S. -Y (författare)
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- Horne, R. B. (författare)
- British Antarctic Survey, Cambridge CB3 0ET, England.
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- Woodfield, E. E. (författare)
- British Antarctic Survey, Cambridge CB3 0ET, England.
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- Shprits, Y. Y. (författare)
- Univ Calif Los Angeles, Dept Earth & Space Sci, Los Angeles, CA 90024 USA.;MIT, Dept Earth Atmospher & Planetary Sci, Cambridge, MA USA.
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- Gurnett, D. A. (författare)
- Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
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- Persoon, A. M. (författare)
- Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA.
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- Wahlund, Jan-Erik (författare)
- Uppsala universitet,Institutet för rymdfysik, Uppsalaavdelningen
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Univ Iowa, Dept Phys & Astron, Iowa City, IA 52242 USA British Antarctic Survey, Cambridge CB3 0ET, England. (creator_code:org_t)
- 2015
- 2015
- Engelska.
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Ingår i: Journal of Geophysical Research - Space Physics. - 2169-9380 .- 2169-9402. ; 120:8, s. 6176-6187
- 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
- Because of the role of Z-mode emission in the diffusive scattering and resonant acceleration of electrons, we conduct a survey of intensity in the Saturn inner magnetosphere. Z mode is primarily observed as 5kHz narrowband emission in the lower density regions where the ratio of cyclotron to plasma frequency, f(c)/f(p)>1 to which we limit this study. This occurs at Saturn along the inner edge of the Enceladus torus near the equator and at higher latitudes. We present profiles and parametric fits of intensity as a function of frequency, radius, latitude, and local time. The magnetic field intensity levels are lower than chorus, but the electric field intensities are comparable. We conclude that Z-mode wave-particle interactions may make a significant contribution to electron acceleration in the inner magnetosphere of Saturn, supplementing acceleration produced by chorus emission.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- plasma waves and instabilities
- wave
- particle interactions
- planetary magnetospheres
- Z mode at Saturn
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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