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Local bow shock environment during magnetosheath jet formation: results from a hybrid-Vlasov simulation

Pfau-Kempf, Yann; Ganse, Urs; Battarbee, Markus +11 more

Magnetosheath jets are plasma structures that are characterised by enhanced dynamic pressure and/or plasma velocity. In this study, we investigate the formation of magnetosheath jets in four two-dimensional simulation runs of the global magnetospheric hybrid-Vlasov model Vlasiator. We focus on jets whose origins were not clearly determined in a pr…

Concerning the detection of electromagnetic knot structures in space plasmas using the wave telescope technique

Motschmann, Uwe; Glassmeier, Karl-Heinz; Toepfer, Simon

The wave telescope technique is broadly established in the analysis of spacecraft data and serves as a bridge between local measurements and the global picture of spatial structures. The technique is originally based on plane waves and has been extended to spherical waves, phase-shifted waves and planetary magnetic field representation. The goal o…

The m-dimensional spatial Nyquist limit using the wave telescope for larger numbers of spacecraft

Motschmann, Uwe; Plaschke, Ferdinand; Glassmeier, Karl-Heinz +2 more

Spacecraft constellations consisting of multiple satellites are becoming more and more interesting not only for commercial use but also for space science missions. The proposed and accepted scientific multi-satellite missions that will operate within Earth's magnetospheric environment, like HelioSwarm, require researchers to extend established met…

Velocity of magnetic holes in the solar wind from Cluster multipoint measurements

Raptis, Savvas; Karlsson, Tomas; Trollvik, Henriette

We present the first statistical study on the velocity of magnetic holes (MHs) in the solar wind. Magnetic holes are localized depressions of the magnetic field, often divided into two classes: rotational and linear MHs. We have conducted a timing analysis of observations of MHs from the Cluster mission in the first quarter of 2005. In total, 69 e…