Study of nonlinear alfven waves in an electron-positron plasma with a 3-D EM particle code

Ken-Ichi Nishikawa, Jie Zhao, Jun-ichi Sakai, Torsten Neubert

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

Results from 3-dimensional electromagnetic particle simulations of a magnetized electron-positron plasma with a relativistic electron beam (gamma=2) are presented, As part of the initial conditions, a poloidal magnetic field is specified consistent with the current carried by the beam electrons. The beam undergoes pinching oscillations due to the pressure imbalance between the inside and outside of the beam. A transverse two-stream instability is excited with large helical perturbations, In the process, background electrons and positrons are accelerated up to relativistic energy levels, Only background electrons are accelerated further along the z-direction due to the synergetic effects by both the excited transverse mode and the accompanying electrostatic waves caused by the breakdown of the helical perturbations.
Original languageEnglish
Title of host publicationRadiation from Black Holes, Future Missions to Primitive Bodies and Middle Atmospheric Fine Structures
PublisherPergamon Press
Publication date1997
Pages117-120
ISBN (Print)0-08-043097-X
DOIs
Publication statusPublished - 1997
Externally publishedYes
EventSymposia on Radiation from Black Holes, Future Missions to Primitive Bodies and Middle Atmospheric Fine Structures, at the 30th COSPAR Scientific Assembly - Hamburg, Germany
Duration: 11 Jul 199421 Jul 1994
Conference number: 30

Conference

ConferenceSymposia on Radiation from Black Holes, Future Missions to Primitive Bodies and Middle Atmospheric Fine Structures, at the 30th COSPAR Scientific Assembly
Number30
CountryGermany
CityHamburg
Period11/07/199421/07/1994
SeriesAdvances in Space Research
Number1
Volume19
ISSN0273-1177

Cite this

Nishikawa, K-I., Zhao, J., Sakai, J., & Neubert, T. (1997). Study of nonlinear alfven waves in an electron-positron plasma with a 3-D EM particle code. In Radiation from Black Holes, Future Missions to Primitive Bodies and Middle Atmospheric Fine Structures (pp. 117-120). Pergamon Press. Advances in Space Research, No. 1, Vol.. 19 https://doi.org/10.1016/S0273-1177(97)00046-X