Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...114..303k&link_type=abstract
Astronomy and Astrophysics, vol. 114, no. 2, Oct. 1982, p. 303-308. Research supported by the Netherlands Foundation for Astron
Astronomy and Astrophysics
Astrophysics
13
Coronal Holes, Solar Wind, Stellar Models, Stellar Winds, Energy Dissipation, Geometry, Mass Transfer, Radiant Flux Density, Solar Corona
Scientific paper
Minimum flux corona theory is employed in an investigation of the effect of increasing the divergence of the geometry of a corona which, unlike studies previously made, involves energy losses that include radiation from the corona and energy losses to the transition region as well as through the stellar wind. It is found that, if the mass loss forms an insignificant part of the energy balance of the corona, an increase in the divergence causes a substantial increase in the mass flux and wind velocity at the base of the corona. If the mass loss is already a significant part of the corona energy balance, however, an increase in the mass flux must occur at the expense of the other components of the energy balance. It is concluded that the large mass flux from coronal holes on the sun and the constancy of transition line intensities in coronal holes and adjacent quiet regions cannot be explained by changes in geometry divergence.
Hearn A. G.
Kuin Paul N. M.
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