Search Publications
Production of gyrating ions from nonlinear wave-particle interaction upstream from the Earth's bow shock: A case study from Cluster-CIS
Lundin, R.; Balogh, A.; Dandouras, I. +14 more
We present observations of E<40 keV/e backstreaming ions measured by the Cluster Ion Spectrometry experiment at 1-2 RE upstream of the bow shock. The ions are simultaneously observed at all three spacecrafts for which CIS measurements are available. The proton distributions are analyzed using 4 s time resolution. They are observed in…
The Earth's quasi-parallel bow shock: Review of observations and perspectives for Cluster
Wilkinson, William P.
Spacecraft crossings of the Earth's quasi-parallel bow shock under typical high Mach number conditions are characterized by the presence of large-amplitude, compressive, low-frequency magnetic pulsations. Thus, instead of the fairly abrupt jump from upstream to downstream states one associates with their quasi-perpendicular counterparts, quasi-par…
Bursty energetic electrons confined in flux ropes in the cusp region
Balogh, A.; Zong, Q. -G.; Daly, P. W. +6 more
Bursty energetic electron events with energies of about 20- 400 keV have been observed in the cusp region when the CLUSTER S/C were travelling outbound on 5 April 2001. These electron events are characterized by strong impulsive increases in the flux whereas energetic ions (>30 keV) show no obvious changes. The enhanced energetic electron flux …
Structural analysis of periodic surface waves on the magnetospheric boundary
Roth, M.; De Keyser, J.
In situ observations of the flanks of the magnetospheric boundary (magnetopause and boundary layer) sometimes show periodic surface waves to be present. We propose a straightforward but powerful technique for analyzing such periodic boundary waves. The result of this analysis is a two-dimensional picture of the structure of the wave in a reference…
Identification of low frequency waves in the vicinity of the terrestrial bow shock
Walker, S. N.; Andre, M.; Balikhin, M. A. +1 more
In this paper, methods for the determination of the wave mode for low frequency waves based on observed differences in phase are reviewed. Examples, using measurements made in the terrestrial foreshock and magnetosheath, are used to illustrate the application of these methods. The use of advance methods such as NARMAX modelling or genetic algorith…