Apparent solar temperature enhancement due to large-amplitude waves

Details Apparent solar temperature enhancement due to large-amplitude waves Apparent solar temperature enhancement due to large-amplitude waves

Dec 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...287..952k&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 287, Dec. 15, 1984, p. 952-958.

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17

Solar Atmosphere, Solar Temperature, Atmospheric Models, Magnetohydrodynamic Waves, Radiative Transfer, Silicon, Solar Spectra

Scientific paper

The effect of slow-mode acoustic-type MHD waves propagating outward in the solar atmosphere on the temperature structures predicted by empirical models is investigated analytically. A model is constructed, and numerical results are presented for wing intensities, line profiles, temperature enhancements, waves with higher energy flux, temperature depression, and the Si continuum. The flux in the MgII and CaII UV resonance lines is found to be increased relative to that in the IR continuum, leading to model temperatures which depend systematically on which observations are used in the computation. It is suggested that mechanical heating may take place in smaller regions such as flux tubes rather than uniformly over the surface.

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