Multispacecraft observations of the electron current sheet, neighboring magnetic islands, and electron acceleration during magnetotail reconnection

0332592 - ÚFA 2010 RIV US eng J - Článek v odborném periodiku
Chen, L. J. - Bessho, N. - Lefebvre, B. - Vaith, H. - Asnes, A. - Santolík, Ondřej - Fazakerley, A. - Puhl-Quinn, P. - Bhattacharjee, A. - Khotyaintsev, Y. - Daly, P. - Torbert, R.
Multispacecraft observations of the electron current sheet, neighboring magnetic islands, and electron acceleration during magnetotail reconnection.
[Vícedružicová pozorování elektronové proudové vrstvy, sousedících magnetickýchj ostrovů a elektronové akcelerace během rekonekce v magnetotailu.]
Physics of Plasmas. Roč. 16, - (2009), 056501/1-056501/12. ISSN 1070-664X. E-ISSN 1089-7674
Výzkumný záměr: CEZ:AV0Z30420517
Klíčová slova: magnetotail reconnection * electron current sheet * multispacecraft observations
Kód oboru RIV: BL - Fyzika plazmatu a výboje v plynech
Impakt faktor: 2.475, rok: 2009

Open questions concerning structures and dynamics of diffusion regions and electron acceleration in collisionless magnetic reconnection are addressed based on data from the four-spacecraft mission Cluster and particle-in-cell simulations. Using time series of electron distribution functions measured by the four spacecraft, distinct electron regions around a reconnection layer are mapped out to set the framework for studying diffusion regions. A spatially extended electron current sheet ecs , a series of magnetic islands, and bursts of energetic electrons within islands are identified during magnetotail reconnection with no appreciable guide field. The ecs is collocated with a layer of electron-scale electric fields normal to the ecs and pointing toward the ecs center plane. Both the observed electron and ion densities vary by more than a factor of 2 within one ion skin depth north and south of the ecs, and from the ecs into magnetic islands.

Analýza rekonekce a doprovodných efektů s využitím vícedružicových měření.
Trvalý link: http://hdl.handle.net/11104/0177808