Statistics – Computation
Scientific paper
Jul 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.233..235c&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 233, July 1, 1988, p. 235-256.
Statistics
Computation
34
Coronal Loops, Dwarf Stars, Equilibrium Methods, K Stars, Main Sequence Stars, Stellar Coronas, X Ray Sources, Computational Astrophysics, Electron Density (Concentration), Exosat Satellite, Hydrostatics, Plasma Temperature, Spaceborne Astronomy, Thermal Instability
Scientific paper
The properties of coronal loop structures with lengths comparable to or greater than a stellar radius are investigated for rapidly rotating lower main-sequence stars and in particular the young, active K0 dwarf AB Doradus, which has a rotation period of 0.514 day. Numerical models are developed for static loops with constant cross-sectional area along their lengths, in thermal and hydrostatic equilibrium. As in previous work by other authors on solar loops, two classes of solution are found: "hot" loops with temperature maxima at their summits, which are thermally stable, and "cool" loops with temperature minima at their summits, which are unstable. The plasma temperatures and electron densities prevailing over most of the length of these large loops show excellent agreement with those estimated from X-ray observations of AB Dor.
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