Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsm21a1562m&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SM21A-1562
Physics
[2723] Magnetospheric Physics / Magnetic Reconnection
Scientific paper
Conventional studies of magnetic reconnection have almost exclusively focussed on symmetric systems, i.e., where both upstream regions have the same magnetic field magnitude and particle density. However, in many physics systems such as the dayside magnetosphere, reconnection is often asymmetric with different upstream conditions on either side. In this study we perform full particle simulations of anti-parallel asymmetric reconnection with a range of different upstream values. The results are consistent with previous Sweet-Parker scaling results and fluid simulations (e.g. Cassak and Shay, 2007,2008), suggesting that kinetic physics does not fundamentally modify the gross properties of the diffusion region. Contrary to fluid simulation studies which did not allow parallel diffusion along magnetic field lines, the downstream density is consistent with previous scaling predictions that assume complete mixing along field lines within the diffusion region.
Cassak Paul
Malakit K.
Shay Michael A.
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