2015
DOI: 10.1002/2015ja021487
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On the origin of magnetosheath plasmoids and their relation to magnetosheath jets

Abstract: We investigate localized magnetosheath and solar wind density enhancements, associated with clear magnetic field changes, and therefore referred to as magnetosheath/solar wind plasmoids, respectively. Using Cluster data, we show that there are two distinct populations of magnetosheath plasmoids, one associated with a decrease of magnetic field strength (diamagnetic plasmoids), and one with an increased magnetic field strength (paramagnetic plasmoids). The diamagnetic magnetosheath plasmoids have scale sizes of… Show more

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Cited by 82 publications
(200 citation statements)
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“…6), since the magnetopause's location and motion are largely controlled by the balance of pressure on either side of the boundary. However, a number of studies have investigated enhancements in the density (Karlsson et al , 2015bGutynska et al 2015) or in the Fig. 4 Example "high-speed jet", an enhancement in the anti-sunward velocity and dynamic pressure based on the x component of the ion velocity (in GSE).…”
Section: Physical Quantities and Nomenclaturementioning
confidence: 99%
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“…6), since the magnetopause's location and motion are largely controlled by the balance of pressure on either side of the boundary. However, a number of studies have investigated enhancements in the density (Karlsson et al , 2015bGutynska et al 2015) or in the Fig. 4 Example "high-speed jet", an enhancement in the anti-sunward velocity and dynamic pressure based on the x component of the ion velocity (in GSE).…”
Section: Physical Quantities and Nomenclaturementioning
confidence: 99%
“…Finally, the name "plasmoid" has also been applied citing its use in describing either a "plasma-magnetic entity" (Bostick 1956) or "a coherent mass of plasma" (Simpson and Weiner 1989). This has typically been ascribed to enhancements in magnetosheath density (Karlsson et al , 2015b, though curiously Gunell et al (2014) used the term to describe velocity structures. Gunell et al (2014) discussed how the nomenclature of the transient structures may implicitly evoke their spatial structure.…”
Section: Physical Quantities and Nomenclaturementioning
confidence: 99%
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