Abstract
An extension of Sonnerup's model for the magnetic field-line reconnection for a compressible plasma is given. The plasma is considered to be only slightly compressible so that the leading wave in Sonnerup's model can still be taken to be a thin discontinuity. The flow is assumed to occur under adiabatic conditions, and de Hoffmann-Teller jump conditions are used to connect the state variables across the shocks. The compressibility effects are found to increase the reconnection rate. The signaling problem is finally considered to study the evolution of MHD waves in a compressible, dissipative plasma so as to investigate the conditions under which the assumption of MHD waves in a compressible plasma to be thin discontinuities is valid.
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Shivamoggi, B.K. Magnetic field reconnection in a compressible plasma. Astrophys Space Sci 103, 219–232 (1984). https://doi.org/10.1007/BF00653738
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DOI: https://doi.org/10.1007/BF00653738