Perspectives Gained from a Combination of Polar, Cluster and ISEE Energetic Particle Measurements in the Dayside Cusp

Fritz, T. A.

doi:10.1007/978-90-481-3499-1_28

Cited by 1 publication

(1 citation statement)

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“…Based on the analysis of the observations, including electron fluxes and pitch-angles, and on the modeled drift paths of energetic electrons with a fully relativistic three-dimensional particle trace, Walsh et al (2010) argued that the observed energetic electron characteristics inside the cusp are only consistent with the local acceleration and cannot be explained by the other mechanisms. Fritz (2010) pointed out that energetic particles are a consistent and common feature of the high-altitude cusp and that their presence is often associated with the cusp diamagnetic cavities. It was suggested that observations are indicative of both ionospheric and solar wind sources and that a local acceleration of plasma within the cusp is the primary source for the energetic particles observed.…”

Section: Energetic Particles In the Cuspmentioning

confidence: 99%

The Polar Cusp Seen by Cluster

Pitout

Bogdanova

2021

JGR Space Physics

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The investigation of the magnetospheric polar cusps was one of the main objectives of the Cluster mission. The four satellites have crossed those regions numerous times over the years and, with their suitable instrumentation, favorable orbits, and unique multipoint measurements, many aspects of the cusp have been unveiled. The first of those is its highly dynamic nature. With four satellites, whatever their altitude and thus their configuration, the spatial/temporal ambiguity has been lifted and a completely new insight into the motion of the cusp and evolution of the transient small‐scale structures within it was given. Second, the high altitude or exterior cusp, its properties and dynamics, magnetic configuration, the energetic particles observed within, and its boundary with the magnetosheath were characterized in a number of case studies and on a statistical basis. Third, the Cluster cusp observations brought a fresh eye on the reconnection process at the magnetopause, including its location and spatio‐temporal variability. Finally, the complete payload with particle, field and wave detectors have made it possible to treat cusp as a plasma physics laboratory to progress our understanding of wave‐particle interaction and turbulence within the cusp. We have no choice but to note that Cluster has been extremely successful for all these matters.

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Section: Energetic Particles In the Cuspmentioning

confidence: 99%