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  • On a Possible Spicule Forma...
    Dunin-Barkovskaya, O. V.; Somov, B. V.

    Astronomy letters, 10/2021, Volume: 47, Issue: 10
    Journal Article

    We consider the gravitational energy of the material falling from the corona as a source of energy for the formation of spicules in the solar chromosphere. We show that in the quiet chromosphere–corona transition region a downward-directed flow of material can generate an upward-traveling shock wave. Part of the energy of the falling material returns to the corona and contributes to its heating. We find the velocities of the falling material needed for this purpose. The corresponding range of velocities agrees well with present-day observations.