Heating rate of ions via nonresonant interaction with turbulent Alfvén waves with ionization and recombination

Bin Wang; Wang, C. B.
August 2009
Physics of Plasmas;Aug2009, Vol. 16 Issue 8, p082902
Academic Journal
Ion heating due to turbulent Alfvén waves via nonresonant wave-particle interaction is discussed to complement a preceding work. We claim that newborn ions can get extra energy from turbulent Alfvén waves. Since in plasmas newborn ions are created continuously and intrinsically via ionization and recombination, heating associated with these newborn ions may be significant. The heating rate is proportional to the creation rate of newborn ions and the total wave field energy density without dependence on the profile of the wave spectrum. Based on observed nonthermal velocities, we estimate the energy density of the wave field and the corresponding heating rate in the solar atmosphere. The results show that such a heating process could be significant in the upper chromosphere and transition region of the sun.


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