Some characteristics of the slowly varying component of solar radio emission for a bipolar group

Details Some characteristics of the slowly varying component of solar radio emission for a bipolar group Some characteristics of the slowly varying component of solar radio emission for a bipolar group

Dec 1974

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1974azh....51.1283f&link_type=abstract

Astronomicheskii Zhurnal, vol. 51, Nov.-Dec. 1974, p. 1283-1287. In Russian.

Astronomy and Astrophysics

Astronomy

Bremsstrahlung, Chromosphere, Electron Density (Concentration), Electron Energy, Solar Radio Emission, Sunspots, Astronomical Models, Magnetic Dipoles, Polarization Characteristics, Solar Magnetic Field, Vertical Distribution

Scientific paper

Spectra and degrees of polarization of the S-component of chromospheric magnetic bremsstrahlung are calculated for a bipolar sunspot group, the magnetic field of which is approximated by the field of two vertical magnetic dipoles. Two models are used for the distribution of the electron concentration and temperature as functions of height above the photosphere, and a spectrum with two maxima is obtained for the distribution in one of the models. The form of this spectrum is attributed to the existence of an extended region in the chromosphere with a small gradient in electron temperature that varies with height. It is found that the spectrum of the S-component just above a bipolar sunspot group is shifted to the short-wave range due to enhancement of the magnetic field above the group as compared with the magnetic field of a single sunspot in the same region.

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