Thermal ripples in a resistive and radiative instability

Details Thermal ripples in a resistive and radiative instability Thermal ripples in a resistive and radiative instability

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...281..854s&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 281, June 15, 1984, p. 854-861.

Astronomy and Astrophysics

Astrophysics

7

Magnetohydrodynamic Stability, Solar Corona, Solar Magnetic Field, Tearing Modes (Plasmas), Thermal Instability, Conductive Heat Transfer, Magnetohydrodynamic Shear Heating, Plasma Heating, Radiative Heat Transfer, Resistance Heating, Solar Flares, Solar Oscillations, Solar Temperature, Thermomagnetic Effects

Scientific paper

The development of the resistive tearing instability in the case of sheared magnetic fields is considered, taking into account also the occurrence of a radiatively driven thermal instability. It is pointed out that thermal conduction has generally been neglected in theories similar to those discussed. The present investigation is concerned with a consideration of both parallel and perpendicular thermal conduction, in addition to finite resistivity and radiative loss. Attention is given to the equations and the model, the spatial singularity which arises with consideration of only the parallel heat conduction, the removal of this singularity and the formation of temperature oscillations (thermal ripples) by inclusion of the perpendicular heat-flux component, and details regarding the numerical procedure. A brief explanation is provided of the conditions required for the oscillations, and potential implications of the results with respect to the solar flare are discussed.

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