[26] 1. At corona expansion, the solar magnetic field is extended by the plasma flow, and a current sheet is formed. The sheet is not neutral. It contains a normal component of the magnetic field.
[27] 2. The current generation in the current sheet is similar to the current generation in a short-circuited MHD generator.
[28] 3. Division of magnetic lines into closed and open is not reasonable.
[29] 4. At typical corona parameters and
Ti=Te, the inclusion of
gravitation and electron and ion temperature gradients does not lead to
disturbance of stability of the solar wind flow formed. If
Ti
[30] 5. Transition from the subsonic flow to the supersonic one occurs
at a distance of about
3 R. No discontinuities in parameters at
transition to the supersonic flow are observed.
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