A simulation approach of high-frequency electrostatic waves found in Saturn's magnetosphere
2012 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 19, no 4, 042102- p.Article in journal (Refereed) Published
Using a particle-in-cell simulation, the characteristics of electron plasma and electron acoustic waves are investigated in plasmas containing an ion and two electron components. The electron velocities are modeled by a combination of two kappa distributions. The model applies to the extended plasma sheet region in Saturn's magnetosphere where the cool and hot electron velocities are found to have low indices, kappa(c) similar or equal to 2 and kappa(h) similar or equal to 4. For such low values of kappa(c) and kappa(h), the electron plasma and electron acoustic waves are coupled. The model predicts weakly damped electron plasma waves while electron acoustic waves should also be observable, although less prominent.
Place, publisher, year, edition, pages
2012. Vol. 19, no 4, 042102- p.
Electron acoustic waves, Electron component, Electron plasma waves, Electron plasmas, Electron velocity, Electrostatic waves, High frequency HF, Low index, Particle-in-cell simulations, Plasma sheet region, Simulation approach, Acoustic waves, Acoustics, Ion beams, Plasma waves, Plasmas, Electrons
IdentifiersURN: urn:nbn:se:kth:diva-98470DOI: 10.1063/1.3695404ISI: 000309592100002ScopusID: 2-s2.0-84860487765OAI: oai:DiVA.org:kth-98470DiVA: diva2:537234
QC 201206262012-06-262012-06-262014-09-22Bibliographically approved