Diagnostic of coronal heating processes based on the emission measure of UV lines

Details Diagnostic of coronal heating processes based on the emission measure of UV lines Diagnostic of coronal heating processes based on the emission measure of UV lines

Jan 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...105l...1t&link_type=abstract

Astronomy and Astrophysics, vol. 105, no. 1, Jan. 1982, p. L1-L4.

Astronomy and Astrophysics

Astronomy

6

Coronal Loops, Solar Corona, Solar Radiation, Solar Spectra, Spectral Energy Distribution, Ultraviolet Spectra, Equilibrium Equations, Solar Heating, Ultraviolet Astronomy

Scientific paper

It is shown how data on the emission measure (EM) of solar UV lines can be used to gather information on the structure and heating processes of solar coronal loops, where the most important feature that must be incorporated is the presence of a minimum of the EM as a function of temperature. By doing this, and observing the requirement that the values of the observable parameters remain in the proper range, it is possible to strictly limit the value of the temperature exponent in the heating function. The loop models proposed present strong variations of the conductive fluxes, and exhibit a marked increase in the region where heating and radiation balance.

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