A class of analytic solutions for the thermally balanced magnetostatic prominence sheet

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Magnetohydrodynamics, Magnetostatic Fields, Plasma Layers, Plasma-Electromagnetic Interaction, Solar Prominences, Thermodynamic Equilibrium, Beta Factor, Plasma Conductivity, Plasma Heating, Plasma Pressure, Plasma Waves, Radiant Cooling, Temperature Distribution, Thermal Conductivity

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A theoretical study is presented for the nonlinear interplay between magnetostatic equilibrium and energy balance in a Kippenhahn-Schlueter type solar prominence sheet. A class of theoretical models is presented, expressed in closed analytic forms, thus facilitating the direct illustration of the nonlinear physical properties. The model couples the equilibrium between magnetic field, plasma pressure, and weight on the one hand, with the balance between a rho-squared T radiative loss, a rho wave heating (where rho equals plasma density, and T equals plasma temperature), and thermal conduction channeled along magnetic field lines on the other. The steady solutions are divided into three classes, and are characterized by the total wave heating in the prominence sheet which is greater than, equal to, or less than the total radiative loss. The compaction of the plasma along the field lines, under its own weight, and the energy transport effects determine which of the three basic behaviors obtains in a particular situation. A discussion is presented of the implications of the steady solutions for the formation of prominences.

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