On cool coronal loops

Details On cool coronal loops On cool coronal loops

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...112..366m&link_type=abstract

Astronomy and Astrophysics, vol. 112, no. 2, Aug. 1982, p. 366-368.

Astronomy and Astrophysics

Astrophysics

17

Coronal Loops, Solar Corona, Cold Plasmas, Hydrostatic Pressure, Plasma Equilibrium, Plasma Heating, Radiative Transfer, Solar Temperature

Scientific paper

Analytical model calculations and physical arguments are used to examine cool equilibria in coronal loops. Static loop model assumptions include a one-dimensional energy equation, a constant cross-sectional area, and a loop symmetric top. It is shown, in contradiction to Hood and Priest (1979) results, that cool loop maximum height has a minimal dependence on the heating mechanism and the radiation losses, and does not depend on constants of proportionality. In addition, thermal catastrophe occurs not only as a result of loop length variations, but also as a result of heating or pressure variations. It is also concluded that for a given heating mechanism, thermal catastrophe occurs at only one loop length.

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