Interaction of field-aligned cold plasma flows with an equatorially-trapped hot plasma: Electrostatic shock formation

1993 ◽  
Vol 20 (9) ◽  
pp. 799-802 ◽  
Author(s):  
Nagendra Singh
Keyword(s):  
Cold Plasma ◽  
Shock Formation ◽  
Plasma Flows ◽  
Hot Plasma

Examination of Bow-Shock Formation in Supersonic Radiatively Cooled Plasma Flows

2011 ◽  
Vol 39 (11) ◽  
pp. 2422-2423 ◽  
Author(s):  
Jonathan L. Peebles ◽  
Simon C. Bott ◽  
Kanchana Gunasekera ◽  
Joohwan Kim ◽  
Leonard Harpster ◽  
...  
Keyword(s):  
Bow Shock ◽  
Shock Formation ◽  
Plasma Flows

Nonlinear waves in a hot plasma by Lorentz transformation

1975 ◽  
Vol 13 (2) ◽  
pp. 231-247 ◽  
Author(s):  
P. C. Clemmow
Keyword(s):  
Nonlinear Waves ◽  
Cold Plasma ◽  
Electron Plasma ◽  
Temperature Correction ◽  
Governing Equations ◽  
Longitudinal Waves ◽  
Circularly Polarized ◽  
The Third ◽  
Hot Plasma ◽  
Space Dependence

Wave propagation in a hot, collisionless electron plasma (without ambient magnetic field) is analyzed by coisidering the frame of reference in which the field has no space dependence. It is shown that the governing equations are of the same form as those for a cold plasma, and are likely to have corresponding exact (nonlinear, relativistic) solutions. In particular, it is shown that there exists a solution representing a purely transverse, circularly polarized, monochromatic wave. Three approximate forms of the dispersion relation of this wave are obtained explicitly, the first being valid when the temperature correction is small, the second applying to weak waves, and the third to strong waves. Purely longitudinal waves are also discussed.

Lagrangian methods in plasma dynamics. Part 2. Construction of Lagrangians for plasmas

1974 ◽  
Vol 11 (2) ◽  
pp. 331-346 ◽  
Author(s):  
J. P. Dougherty
Keyword(s):  
Stress Tensor ◽  
Cold Plasma ◽  
Lagrangian Function ◽  
Covariant Formalism ◽  
Lagrangian Functions ◽  
Plasma Dynamics ◽  
Lagrangian Methods ◽  
Hot Plasma ◽  
The World

Most of this paper is concerned with the construction of suitable Lagrangian functions for the dynamics of a cold plasma, in such a way as to retain the relativistically covariant formalism. In one method, this is achieved by the introduction of a set of three variables which label the world lines of the particles. A second method results in a Clebsch type of representation. Sturrock's relativistic Lagrangian and Low's hot plasma Lagrangian are also briefly discussed in the context of the present work. The behaviour of the canonical stress tensor is considered. The applicability of many of the general results of part 1 is ensured by establishing the existence of the Lagrangian function.

scholarly journals Expansion of Hot Plasma with Kappa Distribution into Cold Plasma

2020 ◽  
Vol 896 (1) ◽  
pp. 9
Author(s):  
Jan Benáček ◽  
Marian Karlický
Keyword(s):  
Cold Plasma ◽  
Kappa Distribution ◽  
Hot Plasma

MMS/Cluster joint measurements at the vicinity of the plasma sheet boundary layer

2020 ◽  
Author(s):  
Olivier Le Contel ◽  
Alessandro Retino ◽  
Alexandra Alexandrova ◽  
Thomas Chust ◽  
Konrad Steinvall ◽  
...  
Keyword(s):  
Boundary Layer ◽  
Plasma Sheet ◽  
Cold Plasma ◽  
Large Scale ◽  
Plasma Sheet Boundary Layer ◽  
Electrostatic Waves ◽  
Hot Plasma ◽  
Short Period ◽  
Generation Mechanisms ◽  
Earthward Flow

<p>On 28th of August 2018 at 5:30 UT, MMS and Cluster were located in the magnetotail at about 16 earth radii (RE). They both suddenly crossed plasma interfaces. Located in the post midnight sector, Cluster transitioned from a cold plasma sheet to a hot plasma sheet whereas MMS, located at 4 RE duskward of Cluster, transitioned from a similar cold plasma sheet to the lobe region via a very short period in a hot plasma sheet. At 05:50 UT MMS returned to a hot plasma sheet and detected a quasi-parallel earthward flow ~ 400 km/s and increased energetic ion and electron fluxes. We use measurements from both missions during this conjunction to describe the possible macroscale evolution of the magnetotail as well as some associated kinetic processes. In particular, we analyze fast and slow non linear electrostatic waves propagating tailward which are detected in the so called electron boundary layer as well as in the hot plasma sheet. We discuss their possible generation mechanisms and link with the large scale evolution of the magnetotail. Finally, we investigate possible effects related to the dawn-dusk asymmetry of the magnetotail.</p>

scholarly journals Dispersion relation of electromagnetic ion cyclotron waves using Cluster observations

2013 ◽  
Vol 31 (8) ◽  
pp. 1437-1446 ◽  
Author(s):  
I. P. Pakhotin ◽  
S. N. Walker ◽  
Y. Y. Shprits ◽  
M. A. Balikhin
Keyword(s):  
Dispersion Relation ◽  
Wave Vector ◽  
Cold Plasma ◽  
High Plasma ◽  
Minimum Variance ◽  
Ion Cyclotron Waves ◽  
Hot Plasma ◽  
Ion Cyclotron ◽  
Electromagnetic Ion Cyclotron Waves ◽  
Plasma Dispersion

Abstract. Multi-point wave observations on Cluster spacecraft are used to infer the dispersion relation of electromagnetic ion cyclotron (EMIC) waves. In this study we use a phase differencing method and observations from STAFF and WHISPER during a well-studied event of 30 March 2002. The phase differencing method requires the knowledge of the direction of the wave vector, which was obtained using minimum variance analysis. Wave vector amplitudes were calculated for a number of frequencies to infer the dispersion relation experimentally. The obtained dispersion relation is largely consistent with the cold plasma dispersion relation. The presented method allows inferring the dispersion relation experimentally. It can be also used in the future to analyse the hot plasma dispersion relation of waves near the local gyrofrequency that can occur under high plasma beta conditions.

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