Magnetic reconnection with pressure gradient effect in compressible electron magnetohydrodynamics
- CAS Key Laboratory of Basic Plasma Physics, School of Science, University of Science and Technology of China, Hefei 230026 (China)
The general dispersion relation of the tearing mode with charge separation and pressure gradient effects in the whistler frequency is analytically derived in the framework of electron magnetohydrodynamics (EMHD). It is shown that pressure gradient effect enhances the growth rate, and makes the EMHD tearing mode drift. The growth rate of the EMHD tearing mode is significantly affected by the pressure gradient effect in the large pressure gradient limit. Furthermore, in this limit, the growth rate in the compressible EMHD fluid is much different from that in the incompressible EMHD fluid.
- OSTI ID:
- 21120224
- Journal Information:
- Physics of Plasmas, Vol. 15, Issue 4; Other Information: DOI: 10.1063/1.2895388; (c) 2008 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
- Country of Publication:
- United States
- Language:
- English
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