Abstract
The subtle interactions between magnetohydrodynamics and high-frequency plasma waves involving transverse and longitudinal modes are investigated. It is shown that there is a resistive instability caused by the Langmuir solitons in a current sheet, which eventually turns into an eruptive instability at the magnetic field reconnection. In the case of enhanced ion-acoustic turbulence, the high-temperature current sheet model must adopt the anomalous conductivity instead of the Coulomb conductivity. The estimated results are consistent with the observations obtained by Shimizu et al. Thus the flarelike brightenings can be basically interpreted by use of this model of magnetic field reconnection with the ponderomotive force.
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