The solar corona

Details The solar corona The solar corona

Dec 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...234..696b&link_type=abstract

Astrophysical Journal, Part 1, vol. 234, Dec. 1, 1979, p. 696-706. Research supported by the University of Kansas

Astronomy and Astrophysics

Astrophysics

5

Interplanetary Dust, Solar Corona, Solar Electrons, Electron Density (Concentration), Solar Activity, Solar Wind, Spatial Distribution

Scientific paper

The physical behavior of interplanetary dust and electrons has been examined with a view to anticipating their spatial distribution and consequent contribution to the intensity of the solar corona. From consideration of 'local' spherical expansion of the solar wind an electron distribution with solar distance r is proposed, r to the -2 power exp (W/r), which results in an excellent fit to observations of the solar corona and electron density at 1 AU. Analysis of total coronal observations during maximum and minimum solar activity at polar and equatorial elongations yields a time-constant spatial distribution of interplanetary dust in the equatorial plane beyond a minimum distance of closest approach of the dust of 4.5 solar radii. Several significant clear-cut deductions about the origin of the solar wind may be made from the expression for the electron density.

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