Mathematics
Scientific paper
May 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...445..489a&link_type=abstract
The Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 445, no. 1, p. 489-496
Mathematics
13
Coronal Loops, Solar Flares, Solar Magnetic Field, Solar Spectra, Analysis (Mathematics), Energy Distribution, Plasma Density, Radiative Heat Transfer
Scientific paper
Coronal loop interactions (CLIs) are commonly observed in images of postflare loop systems recorded in the 5303 A (Fe XIV) and 6374.5 A (Fe X) lines. The CLIs appear as occasional transient brightenings at the projected intersections of adjacent loops. Observational parameters of a CLI of 1981 December 7 are used to determine values of key plasma quantities that characterize these events, leading to optical diagnostics. On the basis of this analysis, the likelihood of detecting CLIs at other coronal-line wavelengths is estimated. Finally, the possible contribution of CLIs to coronal heating is investigated in terms of the estimated frequency of binary loop-loop collisions in the solar corona and their dependence on available photospheric magnetic flux, within and outside active regions. Possible implications for heating of coronae of dMe stars are discussed.
Airapetian Vladimir S.
Smartt Raymond N.
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