Dissipation in Relativistic Pair-Plasma Reconnection

Details Dissipation in Relativistic Pair-Plasma Reconnection Dissipation in Relativistic Pair-Plasma Reconnection

Dec 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007agufmsh42b..07h&link_type=abstract

American Geophysical Union, Fall Meeting 2007, abstract #SH42B-07

Physics

2723 Magnetic Reconnection (7526, 7835), 2753 Numerical Modeling, 7526 Magnetic Reconnection (2723, 7835), 7827 Kinetic And Mhd Theory, 7835 Magnetic Reconnection (2723, 7526)

Scientific paper

We present an investigation of the relativistic dissipation in magnetic reconnection. The investigated system consists of an electron-positron plasma. A relativistic generalization of Ohm's law is derived. We analyze a set of numerical simulations, 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 anti-parallel 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.

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