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Title: Dissipation in relativistic pair-plasma reconnection

An investigation into the relativistic dissipation in magnetic reconnection is presented. The investigated system consists of an electron-positron plasma. A relativistic generalization of Ohm's law is derived. A set of numerical simulations is analyzed, composed of runs with and without guide magnetic field, and of runs with different species temperatures. The calculations indicate that the thermal inertia-based dissipation process survives in relativistic plasmas. For antiparallel reconnection, it is found that the pressure tensor divergence remains the sole contributor to the reconnection electric field, whereas relativistic guide field reconnection exhibits a similarly important role of the bulk inertia terms.
Authors:
;  [1]
  1. NASA Goddard Space Flight Center, Greenbelt, Maryland 20771 (United States)
Publication Date:
OSTI Identifier:
21069874
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 11; Other Information: DOI: 10.1063/1.2801482; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; COMPUTERIZED SIMULATION; DISSIPATION FACTOR; ELECTRIC FIELDS; ELECTRON-POSITRON COLLISIONS; ELECTRONS; MAGNETIC FIELDS; MAGNETIC RECONNECTION; OHM LAW; PLASMA SIMULATION; POSITRONS; RADIATION TRANSPORT; RELATIVISTIC PLASMA; RELATIVISTIC RANGE; TENSORS; THERMODYNAMICS