Furthering our understanding of electrostatic solitary waves through Cluster multispacecraft observations and theory

0313479 - ÚFA 2009 RIV GB eng J - Journal Article
Pickett, J. S. - Chen, L. J. - Mutel, R. L. - Christopher, I. W. - Santolík, Ondřej - Lakhina, G. S. - Singh, S. V. - Reddy, R. V. - Gurnett, D. A. - Tsurutani, B. T. - Lucek, E. - Lavraud, B.
Furthering our understanding of electrostatic solitary waves through Cluster multispacecraft observations and theory.
[Prohlubování našeho chápání elektrostatických "solitary" vln skrze vícebodová měření družicemi Cluster: pozorování a teorie.]
Advances in Space Research. Roč. 41, č. 10 (2008), s. 1666-1676. ISSN 0273-1177. E-ISSN 1879-1948
Institutional research plan: CEZ:AV0Z30420517
Keywords : Electrostatic solitary waves * ESW propagation * Cluster * Magnetosheath * Auroral acceleration region * Cluster wideband data
Subject RIV: BL - Plasma and Gas Discharge Physics
Impact factor: 0.860, year: 2008

Nonlinear isolated electrostatic solitary waves (ESWs) are observed routinely at many of Earth’s major boundaries by the Wideband Data (WBD) plasma wave receivers that are mounted on the four Cluster satellites. The current study discusses two aspects of ESWs: their characteristics in the magnetosheath, and their propagation in the magnetosheath and in the auroral acceleration (upward current) region. The characteristics (amplitude and time duration) of ESWs detected in the magnetosheath are presented for one case in which special mutual impedance tests were conducted allowing for the determination of the density and temperature of the hot and cold electrons. These electron parameters, together with those from the ion experiment, were used as inputs to an electron acoustic soliton model as a consideration for the generation of the observed ESWs. The results from this model showed that negative potential ESWs of a few Debye lengths (10–50 m) could be generated in this plasma.

Nové výsledky analýzy elektrostatických "solitary" vln získaná díky vícebodovým měřením družic Cluster.
Permanent Link: http://hdl.handle.net/11104/0164286