Cylindrical lower‐hybrid electron holes at the Earth's dayside magnetopause

Jovanović, D.; Shukła, P. K.; Morfill, G. E.

doi:10.1029/2005ja011227

Cited by 4 publications

(1 citation statement)

References 31 publications

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“…They are observed within local minima of plasma density. Jovanovic et al (2006) have argued that these impulsive signals are oblique cylindrical electron holes that can be related to the nonlinear evolution of the Buneman instability of lower-hybrid waves, driven by the parallel electric field that is generated by collisionless reconnection. Lower hybrid waves are commonly observed along the magnetopause (cf.…”

Section: Alfvén Wavesmentioning

confidence: 99%

Polar and Cluster observations of a dayside inverted-V during conjunction

et al. 2007

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Abstract.We investigate particle and fields data during a conjunction of the Polar and Cluster spacecraft. This conjunction occurs near the dayside cusp boundary layer when a dayside inverted-V was observed in the particle data of both satellites. Electron, ion, electric field, and magnetic field data from each satellite confirm that the dayside inverted-V (DSIV) structure is present at the location of both satellites and the electric fields persist from the altitude of the Polar (lower) spacecraft to the altitude of the Cluster spacecraft. We observe accelerated, precipitating electrons and upward ions along the magnetic field. In addition, large amplitude electric fields perpendicular to the ambient magnetic field seen by Polar and by Cluster suggest significant parallel electric fields associated with these events. For similar DSIV events observed by the Polar spacecraft, plasma waves (identified as possible Alfvén waves) have been observed to propagate in both directions along the magnetic field line. Future conjunctions will be necessary to confirm that DSIVs are associated with reconnection sites.

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Section: Alfvén Wavesmentioning

confidence: 99%

Polar and Cluster observations of a dayside inverted-V during conjunction

et al. 2007

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Nonlinear kinetic model for lower-hybrid solitary structures

2007

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Nonlinear drift-kinetic theory is proposed for lower-hybrid solitary structures in near-Earth plasmas, based on a two time scale kinetic description of nonlinear interactions between the lower-hybrid and dispersive Alfvén waves. The detailed derivation of the nonlinear coupling terms in an arbitrary geometry is presented, that include the ponderomotive potential, non-curl-free component of the perpendicular electron velocity, and the electron diffusion in velocity space. It is shown that the resonant particles are trapped by the combined effects of the slow and ponderomotive potentials, and that their density is further modified by their diffusion in velocity space, yielding a new type of coherent structure, which is identified as an electron hole, coupled with a nonlinear Schrödinger-type soliton. A numerical solution is found in the form of train of soliton-like lower-hybrid spikes, trapped inside a weakly two-dimensional slab electron hole.

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A review of nonlinear fluid models for ion-and electron-acoustic solitons and double layers: Application to weak double layers and electrostatic solitary waves in the solar wind and the lunar wake

et al. 2018

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Electrostatic solitary waves (ESWs) have been observed in the Earth's magnetosphere, solar wind, lunar wake, and also in other planetary magnetospheres. The observed characteristics of the ESWs have been interpreted in terms of models based either on Bernstein-Green-Kruskal (BGK) modes/phase space holes or ion- and electron-acoustic solitons. However, the space community has favored the models based on BGK modes/phase space holes. In this review, current understanding of the fluid models for ion-and electron-acoustic solitons and double layers in multi-component plasmas is presented. The relationship between the theoretical models and space observations of ESWs is emphasized. Two specific applications of ion- and electron-acoustic solitons to the occurrence of weak double layers and coherent electrostatic waves in the solar wind and the lunar wake are discussed by comparing the observations and theoretical predictions. It is concluded that models based on ion- and electron-acoustic solitons/double layers provide a plausible interpretation for the ESWs observed in space plasmas.

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Cylindrical lower‐hybrid electron holes at the Earth's dayside magnetopause

Cited by 4 publications

References 31 publications

Polar and Cluster observations of a dayside inverted-V during conjunction

Polar and Cluster observations of a dayside inverted-V during conjunction

Nonlinear kinetic model for lower-hybrid solitary structures

A review of nonlinear fluid models for ion-and electron-acoustic solitons and double layers: Application to weak double layers and electrostatic solitary waves in the solar wind and the lunar wake

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