Ion Acceleration in Collective Fields at Electron Beam Injection from Spacecraft

Maslov, V. A.; Oraevsky, V. N.; Ruzhin, Yu. Ya.

doi:10.1088/0031-8949/57/3/019

Cited by 3 publications

(12 citation statements)

References 8 publications

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“…We assume that the axis is directed toward the surface of Jupiter. The electric double layer has a finite longitudinal size along , approximately equal to [15][16][17]19]. Due to the finite radius of the beam, the DL has a finite transverse dimension.…”

Section: Vortex In a Plane ( ) In A Collisional Magnetized Plasma With A Reflected Electron Beammentioning

confidence: 99%

Section: Equations Describing the Excitation Of Nonlinear Vortex Perturbationsmentioning

confidence: 99%

“…The first term in (19) specifies the electron movement on the closed trajectories in the crossed fields. The second term in (19) shows that the vortical motion begins, as soon as there appears a perturbation of the electron density . From (19), it also follows that the vorticity has one sign in all beam areas in the case of vortical perturbations of small amplitudes.…”

Section: Equations Describing the Excitation Of Nonlinear Vortex Perturbationsmentioning

confidence: 99%

“…The DL phenomenon has been studied for a long time (see [15][16][17][18][19][20][21]) and was observed under laboratory conditions and in astrophysical applications. In addition, DLs are observed in auroral regions, where they require some external drivers to induce the electron acceleration [22,23].…”

Section: Introductionmentioning

confidence: 99%

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Vortex Structures and Electron Beam Dynamics in Magnetized Plasma

et al. 2021

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We investigate the formation of vortex structures at the refl ection of an electron beam from the double layer of the Jupiter ionosphere. The infl uence of these vortex structures on the formation of dense upward electron fl uxes accelerated by the double layer potential along the Io flux tube is studied. The phase transition to the cyclotron superradiance mode becomes possible for these electrons. The conditions of the formation of vortex perturbations are considered. The nonlinear equation that describes the vortex dynamics of electrons is constructed, and its consequences are studied.

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Section: Vortex In a Plane ( ) In A Collisional Magnetized Plasma With A Reflected Electron Beammentioning

confidence: 99%

Section: Equations Describing the Excitation Of Nonlinear Vortex Perturbationsmentioning

confidence: 99%

Section: Equations Describing the Excitation Of Nonlinear Vortex Perturbationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Vortex Structures and Electron Beam Dynamics in Magnetized Plasma

et al. 2021

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“…The so-called electric double layers [14][15][16][17][18][19][20][21] are known to play an important role in the processes running in the magnetospheres of planets. The double electric layer is a plasma region with a violated quasineutrality.…”

Section: Influence Of the Acceleration On The Csr Criterionmentioning

confidence: 99%

Role of Double Layers in the Formation of Conditions for a Polarization Phase Transition to the Superradiancestate in the Io Flux Tube

Novak¹,

Kholodov²,

Fomina³

2018

Ukr. J. Phys.

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A possibility of the electron phase transition into cyclotron superradiance mode in a vicinity of the Io flux tube foot in the Jovian magnetosphere has been considered. A high power of cyclotron superradiance allows it to be considered as the main mechanism of decameter Jupiter radiation generation in the form of S-bursts. It was found that the downward electron beams emitted by Io are able to create electric double layers in the form of shock waves. Such waves, when moving along the flux tube, accelerate electrons in the magnetosphere. As a result, the temperature of the electron plasma component decreases considerably. The emerging upward electron beams create conditions favorable for the phase transition into the cyclotron superradiance mode to take place. K e y w o r d s: magnetosphere, superradiance, double layer, plasma.

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Vortex structures and electron beam dynamics in magnetized plasma

Maslov¹,

Cheremnykh²,

Fomina³

et al. 2021

Preprint

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The formation of vortex structures at reflection of electron beam from the double layer of the Jupiter ionosphere is investigated in this paper. And also the influence of these vortex structures on the formation of dense upward electron fluxes, accelerated by the double layer potential along the Io flux tube is studied. Then a phase transition to the cyclotron superradiance mode becomes possible for these electrons. The conditions of the vortex perturbations formation are considered. The nonlinear equation is found that describes the vortex dynamics of electrons and its consequences are studied.

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Ion Acceleration in Collective Fields at Electron Beam Injection from Spacecraft

Cited by 3 publications

References 8 publications

Vortex Structures and Electron Beam Dynamics in Magnetized Plasma

Vortex Structures and Electron Beam Dynamics in Magnetized Plasma

Role of Double Layers in the Formation of Conditions for a Polarization Phase Transition to the Superradiancestate in the Io Flux Tube

Vortex structures and electron beam dynamics in magnetized plasma

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