Physics – Plasma Physics
Scientific paper
Apr 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jgra..11004204m&link_type=abstract
Journal of Geophysical Research, Volume 110, Issue A4, CiteID A04204
Physics
Plasma Physics
7
Magnetospheric Physics: Magnetic Reconnection (7526, 7835), Magnetospheric Physics: Magnetopause And Boundary Layers, Magnetospheric Physics: Numerical Modeling, Magnetospheric Physics: Solar Wind/Magnetosphere Interactions, Space Plasma Physics: Magnetic Reconnection (2723, 7526)
Scientific paper
Theoretical models of magnetic reconnection have been traditionally developed within the framework of magnetohydrodynamics (MHD). However, in low-density astrophysical plasmas like those found in the magnetopause and the magnetotail, kinetic effects such as the Hall current are expected to play a significant role. We present results from externally driven magnetic reconnection simulations, within the framework of incompressible Hall MHD in 2 1/2 dimensions. We evaluate the relevance of the Hall current in the reconnection process by performing a set of simulations with different values of the Hall parameter. We compute the corresponding reconnection rates as a function of time and explore the spatial structure of the fields in the surroundings of the diffusion region.
Dasso Sergio
Gomez Daniel O.
Morales Laura F.
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