Abstract
The role of magnetic reconnection in the dynamics of the Venus dayside ionopause is investigated. The dispersion relation of the resistive tearing mode for the asymmetric ionopause equilibrium is derived and solved. It is shown that typical signatures of this mode correspond to helical magnetic flux tubes (flux ropes) as observed by Pioneer Venus Orbiter. Nonlinear numerical MHD‐simulations were carried out in addition to the analytical investigations. The results of these simulations support our view that magnetic reconnection plays an essential role in the dynamic interaction of the solar wind with the Venus ionosphere.
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