Physics
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977soph...53..471m&link_type=abstract
Solar Physics, vol. 53, Aug. 1977, p. 471-488.
Physics
9
Radiative Transfer, Radio Scattering, Solar Corona, Solar Temperature, Electron Density (Concentration), Monte Carlo Method, Ray Tracing, Solar Activity, Very High Frequencies
Scientific paper
The problem of predicting the radio emission from the quiet sun for meter and decameter waves may be formulated in terms of a standard radiative transfer problem with conservative scattering. One may therefore avoid the numerical complications involved in using a ray-tracing approach which incorporates a Monte-Carlo routine for representing scattering. The brightness and extent of the radio sun are calculated for several values of the electron temperature and scattering parameter of Steinberg et al. (1971). It is concluded that the temperature and density model of Newkirk (1967) for solar maximum reasonably represents the observations. However, some observations appear to be inconsistent with scattering models and further observations are needed. It is shown that the standard ray-tracing technique incorporating a Monte-Carlo routine for the scattering may be replaced by a diffusion approximation.
Helfer Lawrence H.
McMullin J. N.
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