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Solitary structures...
Solitary structures associated with short large-amplitude magnetic structures (SLAMS) upstream of the Earth's quasi-parallel bow shock
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- Behlke, Rico (författare)
- Uppsala universitet,Institutionen för astronomi och rymdfysik
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- André, Mats (författare)
- Uppsala universitet,Rymdfysik
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Bale, Stuart D. (författare)
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Pickett, Jolene S. (författare)
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Cattell, Cynthia A. (författare)
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Lucek, Elizabeth A. (författare)
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Balogh, Andre (författare)
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(creator_code:org_t)
- 2004
- 2004
- Engelska.
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Ingår i: Geophysical Research Letters. - 0094-8276 .- 1944-8007. ; 31:16
- 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
- [1] For the first time, solitary waves (SWs) have been observed within short large-amplitude magnetic structures (SLAMS) upstream of the Earth's quasi-parallel bow shock. The SWs often occur as bipolar pulses in the electric field data and move parallel to the background magnetic field at velocities of v = 400–1200 km/s. They have peak-to-peak amplitudes in the parallel electric field of up to E′∥ = 65 mV/m and parallel scale sizes of L∥ ∼ 10 λD. The bipolar solitary waves exhibit negative potential structures of ∣Φ∥∣ = 0.4–2.2 V, i.e., eΦ∥/kTe ∼ 0.1. None of the theories commonly used to describe SWs adequately address these negative potential structures moving at velocities above the ion thermal speed in a weakly magnetized plasma.
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