 |
| Titel |
Thin embedded current sheets: Cluster observations of ion kinetic structure and analytical models |
| VerfasserIn |
A. V. Artemyev, A. A. Petrukovich, L. M. Zelenyi, R. Nakamura, H. V. Malova, V. Y. Popov |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
0992-7689
|
| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 27, no. 10 ; Nr. 27, no. 10 (2009-10-29), S.4075-4087 |
| Datensatznummer |
250016693
|
| Publikation (Nr.) |
 copernicus.org/angeo-27-4075-2009.pdf |
|
|
|
|
|
| Zusammenfassung |
| Kinetic structure of embedded thin horizontal current sheets is
investigated. Current density estimated by curlometer technique is in
general agreement with a sum of electron and proton currents. Embedding of
observed thin current sheets in the much wider plasma sheet is apparent in
the current density profiles. Ion velocity distributions consist of two
parts: the cold non-drifting core likely belongs to the plasma sheet
background, while the hotter asymmetric "wings" carry the main portion of
the current. Oxygen ions (if present) and higher-energy tails of
distribution function can contribute up to 30% of the total current. We
compared current density profiles across sheets with three typical current
sheet models. Models which allow embedding, describe observed structures
equally well at the level of experimental accuracy. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|