Models of coronal streamers at meter-decameter wavelengths

Details Models of coronal streamers at meter-decameter wavelengths Models of coronal streamers at meter-decameter wavelengths

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992esasp.348..145s&link_type=abstract

In ESA, Proceedings of the First SOHO Workshop: Coronal Streamers, Coronal Loops, and Coronal and Solar Wind Composition p 145-1

Statistics

Computation

2

Density Distribution, Radio Observation, Solar Corona, Solar Corpuscular Radiation, Sun, Computational Geometry, Maps, Mathematical Models, Solar Rotation, Space Observations (From Earth)

Scientific paper

Throughout the quiet Sun years 1982-1987, the Clark Lake radioheliograph routinely mapped the solar corona on a daily basis at frequencies from 30 to 100 MHz. The Clark Lake maps show a variety of features which were analyzed quantitatively. Among the features are coronal streamers, which appear to cross the solar disk during a solar rotation. The streamers were modeled with various geometries and ray tracing images were computed for comparison with the CLRO (Clark Lake Radio Observatory) maps. The best fitting streamer models have a density profile approximately equal to 5 times Saito (1970) with a background approximately equal to 0.1 times Saito. The required low background value may be explained by either scattering in 'microstructure' or unresolved 'macrostructure'.

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