 |
| Titel |
Particle-in-Cell Simulations of Collisionless Magnetic Reconnection with a Non-Uniform Guide Field |
| VerfasserIn |
Fiona Wilson, Thomas Neukirch, Michael Hesse |
| Konferenz |
EGU General Assembly 2016
|
| Medientyp |
Artikel
|
| Sprache |
en
|
| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 18 (2016) |
| Datensatznummer |
250123111
|
| Publikation (Nr.) |
 EGU/EGU2016-2309.pdf |
|
|
|
|
|
| Zusammenfassung |
| Results are presented of a first study of collisionless magnetic reconnection starting from a recently found exact nonlinear force-free Vlasov-Maxwell equilibrium. The initial state has a Harris sheet magnetic field profile in one direction and a non-uniform guide field in a second direction, resulting in a spatially constant magnetic field strength as well as a constant initial plasma density and plasma pressure. It is found that the reconnection process initially resembles guide field reconnection, but that a gradual transition to anti-parallel reconnection happens as the system evolves. The time evolution of a number of plasma parameters is investigated, and the results are compared with simulations starting from a Harris sheet equilibrium and a Harris sheet plus constant guide field equilibrium. |
|
|
|
|
|
|