Strengthening of the magnetic field of a high-temperature, optically thin plasma in the process of radiative cooling - Case of a plane one-dimensional field

Details Strengthening of the magnetic field of a high-temperature, optically thin plasma in the process of radiative cooling - Case of a plane one-dimensional field Strengthening of the magnetic field of a high-temperature, optically thin plasma in the process of radiative cooling - Case of a plane one-dimensional field

Jun 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980azh....57..577v&link_type=abstract

(Astronomicheskii Zhurnal, vol. 57, May-June 1980, p. 577-586.) Soviet Astronomy, vol. 24, May-June 1980, p. 335-340. Translati

Astronomy and Astrophysics

Astronomy

High Temperature Plasmas, Magnetic Flux, Plasma Cooling, Radiant Cooling, Solar Corona, Solar Magnetic Field, Chromosphere, Field Strength, Magnetohydrodynamic Flow, Radiative Heat Transfer, Shock Heating

Scientific paper

In the process of cooling of an optically thin plasma heated unevenly to a high temperature, the magnetic field can be strengthened temporarily to a considerable value. The cause of this strengthening is that different regions cool at different rates, and under conditions of quasi-equilibrium the slowly cooling regions compress the rapidly cooling regions. The problem of the cooling of a plasma was solved for the case of a plane one-dimensional field in the MHD approximation. The solution was investigated in detail and applied to two cases in the corona and one case in the chromosphere of the sun. This mechanism is capable of explaining a number of regions of strengthened magnetic field in the solar corona. The heating source may be shock waves from chromospheric flares.

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