The thermal structure of the magnetized solar transition region

Details The thermal structure of the magnetized solar transition region The thermal structure of the magnetized solar transition region

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993soph..146....5m&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 146, no. 1, p. 5-17.

Physics

4

Chromosphere, Plasma Layers, Solar Atmosphere, Solar Temperature, Stellar Models, Temperature Distribution, Atmospheric Models, Conductive Heat Transfer, Coronal Loops, Magnetohydrodynamics, Radiative Heat Transfer, Two Dimensional Models

Scientific paper

The detailed thermal structure of the magnetized solar transition region, as measured by its differential emission measure DEM(T), is unknown. Proposals have been made that envision a significant lower-temperature contribution to the energy balance from cross-field (ion) heat flux. In this paper, we describe a self-consistent 2D MHD simulation (including the full effects of anisotropic thermal conduction) of a conceptual model due to Athay (1990). We display the detailed irregular thermal and magnetic structure of the transition region and demonstrate that the predicted DEM agrees with observations, particularly in the T less than 10 exp 5 K regime where previous theories had difficulty.

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