Solitary structures associated with short large-amplitude magnetic structures (SLAMS) upstream of the Earth's quasi-parallel bow shock
2004 (English)In: Geophysical Research Letters, ISSN 0094-8276, Vol. 31, no 16Article in journal (Refereed) Published
 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.
Place, publisher, year, edition, pages
2004. Vol. 31, no 16
IdentifiersURN: urn:nbn:se:uu:diva-93710DOI: 10.1029/2004GL019524OAI: oai:DiVA.org:uu-93710DiVA: diva2:167276