Effects of mass motions on solar emission measures inferred from transition-region emission lines

Details Effects of mass motions on solar emission measures inferred from transition-region emission lines Effects of mass motions on solar emission measures inferred from transition-region emission lines

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...281..435m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 281, June 1, 1984, p. 435-441. NASA-Navy-sponsored research.

Astronomy and Astrophysics

Astronomy

11

Chromosphere, Coronal Loops, Solar Spectra, Ultraviolet Astronomy, Emission Spectra, Stellar Models

Scientific paper

Extreme ultraviolet emission line intensities predicted by a numerical model which includes nonequilibrium ionization balance are used as input "observational" intensities to calculate volume emission measures following a standard method which assumes ionization equilibrium. These "observational" emission measures are then compared with the actual emission measure distribution in the atmospheric model. For static equilibrium models, the two sets of emission measures are in good agreement. When mass motions are present, the emission measures calculated from the line intensities differ significantly from the actual values.

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