Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Collisionless magnetic reconnection: Electron processes and transport modeling
Autore:
Hesse, M; Birn, J; Kuznetsova, M;
Indirizzi:
NASA, Goddard Space Flight Ctr, Electrodynam Branch, Greenbelt, MD 20771 USA NASA Greenbelt MD USA 20771 Electrodynam Branch, Greenbelt, MD 20771 USA Univ Calif Los Alamos Natl Lab, Los Alamos, NM 87545 USA Univ Calif Los Alamos Natl Lab Los Alamos NM USA 87545 amos, NM 87545 USA NASA, Goddard Space Flight Ctr, Raytheo STX, Greenbelt, MD 20771 USA NASAGreenbelt MD USA 20771 ght Ctr, Raytheo STX, Greenbelt, MD 20771 USA
Titolo Testata:
JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
fascicolo: A3, volume: 106, anno: 2001,
pagine: 3721 - 3735
SICI:
0148-0227(20010301)106:A3<3721:CMREPA>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
HYBRID SIMULATIONS; PARTICLE SIMULATION; MAGNETOTAIL RECONNECTION; EARTHS MAGNETOPAUSE; FIELD; DISSIPATION; DYNAMICS; PLASMAS; REGION; LAW;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
33
Recensione:
Indirizzi per estratti:
Indirizzo: Hesse, M NASA, Goddard Space Flight Ctr, Electrodynam Branch, Code 696, Greenbelt, MD 20771 USA NASA Code 696 Greenbelt MD USA 20771 696, Greenbelt, MD 20771 USA
Citazione:
M. Hesse et al., "Collisionless magnetic reconnection: Electron processes and transport modeling", J GEO R-S P, 106(A3), 2001, pp. 3721-3735

Abstract

Particle-in-cell simulations are used to investigate collisionless magnetic reconnection in thin current sheets, based on the configuration chosen for the Geospace Environment Modeling (GEM) magnetic reconnection challenge [Birn et al., this issue]. The emphasis is on the overall evolution, as wellas details of the particle dynamics in the diffusion region. Here electrondistributions show clear signatures of nongyrotropy, whereas ion distributions are simpler in structure. The investigations are extended to current sheets of different widths. Here we derive a scaling law for the evolution dependence on current sheet width. Finally, we perform a detailed comparisonbetween a kinetic and Hall-magnetohydrodynamic model of the same system. The comparison shows that although electric fields appear to be quite similar, details of the evolution appear to be considerably different, indicativeof the role of further anisotropies in the ion pressures.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 00:09:36