Particle-in-cell simulations of collisionless magnetic reconnection with a non-uniform guide field
MetadataShow full item record
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.
Wilson , F , Neukirch , T , Hesse , M , Harrison , M G & Stark , C R 2016 , ' Particle-in-cell simulations of collisionless magnetic reconnection with a non-uniform guide field ' Physics of Plasmas , vol 23 , 032302 . DOI: 10.1063/1.4942939
Physics of Plasmas
© 2016 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Items in the St Andrews Research Repository are protected by copyright, with all rights reserved, unless otherwise indicated.