Title:	Observations and interpretation of the slowly varying component of solar radio emission at decameter wavelengths
Authors:	Sastry, Ch.V. Dwarakanath, K.S. Shevgaonkar, R.K. Krishan, Vinod
Keywords:	BRIGHTNESS TEMPERATURE DECAMETRIC WAVES RADIO ASTRONOMY SOLAR RADIO EMISSION BRIGHTNESS DISTRIBUTION ELECTRON DENSITY (CONCENTRATION) ELECTRON ENERGY SOLAR CORONA SOLAR MAGNETIC FIELD THERMAL EMISSION
Issue Date:	Oct-1981
Publisher:	Springer
Citation:	Solar Physics, 1981, Vol.73, p363-377
Abstract:	It is shown that the detection of the slowly varying component of solar radio emission at decameter wavelengths during extremely quiet periods is possible. Such observations are presented for the case of emissions at 34.5 MHz during the periods of July-December 1979 and February-March 1980, with half power beam widths of 26/40 arcmin in the east-west and north-south directions, respectively. The measured brightness temperatures are found to vary within the limits of 300,000 to 1,500,000 K. The average half power width of the brightness temperature distribution of the sun is about three solar radii. It is shown that thermal emission from the dense coronal regions can account for the observed brightness temperatures and half power widths.
Description:	Open Access.
URI:	http://hdl.handle.net/2289/2404
ISSN:	0038-0938 1573-093X (Online)
Alternative Location:	http://adsabs.harvard.edu/cgi-bin/bib_query?1981SoPh...73..363S http://dx.doi.org/10.1007/BF00151687
Copyright:	1981 Springer
Appears in Collections:	Research Papers (A&A)

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