Kakad, A;
Kakad, B;
Anekallu, C;
Lakhina, G;
Omura, Y;
Fazakerley, A;
(2016)
Slow electrostatic solitary waves in Earth's plasma sheet boundary layer.
Journal of Geophysical Research: Space Physics
, 121
(5)
pp. 4452-4465.
10.1002/2016JA022365.
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Abstract
We modeled Cluster spacecraft observations of slow electrostatic solitary waves (SESWs) in the Earth's northern plasma sheet boundary layer (PSBL) region on the basis of nonlinear fluid theory and fluid simulation. Various plasma parameters observed by the Cluster satellite at the time of the SESWs were examined to investigate the generation process of the SESWs. The nonlinear fluid model shows the coexistence of slow and fast ion acoustic waves and the presence of electron acoustic waves in the PSBL region. The fluid simulations, performed to examine the evolution of these waves in the PSBL region, showed the presence of an extra mode along with the waves supported by the nonlinear fluid theory. This extra mode is identified as the Buneman mode, which is generated by relative drifts of ions and electrons. A detailed investigation of the characteristics of the SESWs reveals that the SESWs are slow ion acoustic solitary waves.
| Type: | Article |
|---|---|
| Title: | Slow electrostatic solitary waves in Earth's plasma sheet boundary layer |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/2016JA022365 |
| Publisher version: | http://doi.org/10.1002/2016JA022365 |
| Language: | English |
| Additional information: | Copyright © 2016. American Geophysical Union. All Rights Reserved. This is the peer reviewed version of the following Kakad, A; Kakad, B; Anekallu, C; Lakhina, G; Omura, Y; Fazakerley, A; (2016) Slow electrostatic solitary waves in Earth's plasma sheet boundary layer. Journal of Geophysical Research: Space Physics , 121 (5) pp. 4452-4465. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving, http://olabout.wiley.com/WileyCDA/Section/id-820227.html#terms |
| Keywords: | Electrostatic solitary waves; ion acoustic solitary waves; Buneman instability; fluid simulation; nonlinear fluid model |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1508384 |
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