Debye-scale solitary structures measured in a beam-plasma laboratory experiment

Lefebvre, Bertrand; Chen, Li‐Jen; Gekelman, Walter; Kintner, P. M.; Pickett, J. S.; Pribyl, Patrick; Vincena, S.

doi:10.5194/npg-18-41-2011

Cited by 19 publications

(12 citation statements)

References 39 publications

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“…For example, ESWs have been reported at Earth's magnetopause [Cattell et al, 2002;Matsumoto et al, 2003], magnetotail Cattell et al, 2005;Khotyaintsev et al, 2010b], auroral regions [Ergun et al, 1998a[Ergun et al, , 1998bMozer et al, 2015], magnetosheath , near the foreshock [Behlke et al, 2004;Shin et al, 2008], and in the solar wind [Mangeney et al, 1999;Malaspina et al, 2013]. ESWs are also observed in laboratory experiments [Fox et al, 2008;Lefebvre et al, 2011]. At the magnetopause and magnetotail ESWs are often argued to be associated with magnetic reconnection [Lapenta et al, 2011].…”

Section: Introductionmentioning

confidence: 99%

Electrostatic solitary waves and electrostatic waves at the magnetopause

et al. 2016

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Electrostatic solitary waves (ESWs) are characterized by localized bipolar electric fields parallel to the magnetic field and are frequently observed in space plasmas. In this paper a study of ESWs and field‐aligned electrostatic waves, which do not exhibit localized bipolar fields, near the magnetopause is presented using the Cluster spacecraft. The speeds, length scales, field strengths, and potentials are calculated and compared with the local plasma conditions. A large range of speeds is observed, suggesting different generation mechanisms. In contrast, a smaller range of length scales normalized to the Debye length λD is found. For ESWs the average length between the positive and negative peak fields is 9 λD, comparable to the average half wavelength of electrostatic waves. Statistically, the lengths and speeds of ESWs and electrostatic waves are shown to be similar. The length scales and potentials of the ESWs are consistent with predictions for stable electron holes. The maximum ESW potentials are shown to be constrained by the length scale and the magnetic field strength at the magnetopause and in the magnetosheath. The observed waves are consistent with those generated by the warm bistreaming instability, beam‐plasma instability, and electron‐ion instabilities, which account for the observed speeds and length scales. The large range of wave speeds suggests that the waves can couple different electron populations and electrons with ions, heating the plasma and contributing to anomalous resistivity.

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Section: Introductionmentioning

confidence: 99%

Electrostatic solitary waves and electrostatic waves at the magnetopause

et al. 2016

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“…4(a) at low n b /n 0 can be understood from linear growth rate estimates, given the dependence on the density ratio (n b /n 0 ) α (α = 1/3 for a beam, α = 1 for a bi-Maxwellian plasma). We should note that, although we launched a gyrating beam into the background plasma, the electron distribution function is redistributed to have a long tail up to the beam energy by other processes [23,[33][34][35].…”

Section: Lapdmentioning

confidence: 99%

Excitation of Chirping Whistler Waves in a Laboratory Plasma

Compernolle

Bortnik

et al. 2015

Phys. Rev. Lett.

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“…In an effort to clarify this issue, laboratory experiments were carried out in the LArge Plasma Device (LAPD) at the University of California-Los Angeles. For a discussion of those experiments and the complementary simulations, the reader is referred to Lefebvre et al (2011).…”

Section: Electrostatic Solitary Wavesmentioning

confidence: 99%

Multipoint observations of plasma phenomena made in space by Cluster

et al. 2015

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Plasmas are ubiquitous in nature, surround our local geospace environment, and permeate the universe. Plasma phenomena in space give rise to energetic particles, the aurora, solar flares and coronal mass ejections, as well as many energetic phenomena in interstellar space. Although plasmas can be studied in laboratory settings, it is often difficult, if not impossible, to replicate the conditions (density, temperature, magnetic and electric fields, etc.) of space. Single-point space missions too numerous to list have described many properties of near-Earth and heliospheric plasmas as measured both in situ and remotely (see http://www.nasa.gov/missions/#.U1mcVmeweRY for a list of NASA-related missions). However, a full description of our plasma environment requires three-dimensional spatial measurements. Cluster is the first, and until data begin flowing from the Magnetospheric Multiscale Mission (MMS), the only mission designed to describe the three-dimensional spatial structure of plasma phenomena in geospace. In this paper, we concentrate on some of the many plasma phenomena that have been studied using data from Cluster. To date, there have been more than 2000 refereed papers published using Cluster data but in this paper we will, of necessity, refer to only a small fraction of the published work. We have focused on a few basic plasma phenomena, but, for example, have not dealt with most of the vast body of work describing dynamical phenomena in Earth's magnetosphere, including the dynamics of current sheets in Earth's magnetotail and the morphology of the dayside high latitude cusp. Several review articles and special publications are available that describe aspects of that research in detail and interested readers are referred to them (see for example, Escoubet et al.

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Debye-scale solitary structures measured in a beam-plasma laboratory experiment

Cited by 19 publications

References 39 publications

Electrostatic solitary waves and electrostatic waves at the magnetopause

Electrostatic solitary waves and electrostatic waves at the magnetopause

Excitation of Chirping Whistler Waves in a Laboratory Plasma

Multipoint observations of plasma phenomena made in space by Cluster

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