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Radio Emission of the Solar Polar Regions at Millimeter Wavelengths

Published online by Cambridge University Press:  14 August 2015

V. A. Efanov ,
I. G. Moiseev ,
N. S. Nesterov  and
R. T. Stewart
V. A. Efanov
Affiliation:
Crimean Astrophysical Observatory, U.S.S.R.
I. G. Moiseev
Affiliation:
Crimean Astrophysical Observatory, U.S.S.R.
N. S. Nesterov
Affiliation:
Crimean Astrophysical Observatory, U.S.S.R.
R. T. Stewart
Affiliation:
CSIRO, Division of Radiophysics, Australia

Extract

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Regions of enhanced radio brightness in the polar areas of the Sun were detected in 1974 at the Crimean Astrophysical Observatory of the Academy of Sciences of the U.S.S.R. The effective temperatures of these regions exceeded that of the undisturbed Sun by 1500 K and 2200 K at 8.2 and 13.5 mm wavelengths respectively. Radio brightness distributions of the Sun obtained with the 22-m radio telescope, at 8.2 and 13.5 mm with angular resolutions of 1!6 and 2!55 respectively are shown in Figure 1. Regions of enhanced radio brightness near the North Pole of the Sun are seen, beside the typical s-sources at middle and low latitudes.

Type
Session II - Active Regions
Information
Symposium - International Astronomical Union , Volume 86: Radio Physics of the Sun , 1980 , pp. 141 - 145
Copyright
Copyright © Reidel 1980 

References

1. Babin, N.H., Gopasyuk, S.J., Efanov, V.A., Kotov, V.A., Moiseev, J.G., Nesterov, N.S., Tsap, T.T.: 1976, Izv. Krymsk. Astrofiz. Observ. 55, 3.Google Scholar
2. Efanov, V.A., Labrum, N., Moiseev, J.G., Nesterov, N.S., Stewart, P.T.: 1980, Izv. Krymsk. Astrofiz. Observ. 61.0 (in press).Google Scholar