Radio interferometric observations of solar bursts at 3.7- and 11-cm wavelengths

• Published in: Solar physics Vol. 64; no. 1; pp. 159 - 163
• Main Authors: Kundu, M R, Angerhofer, P E
• Format: Journal Article
• Language: English
• Published: 01.01.1979
• ISSN: 0038-0938

Several solar active regions were observed, during the 1976 vernal equinox, with the three-element interferometer of the National Radio Astronomy Observatory. The element spacings for these observations were 600, 2100, and 2700 m, resulting in maximum angular resolutions of similar to 3 arc sec at 3.7 cm and 8.5 arc sec at 11.1 cm. The authors fitted the fringe visibility for each baseline pair as a function of projected baseline with a single gaussian component, and calculated the extrapolated flux at zero baseline, F sub(0) ; the FWHM source size, a; and the peak brightness temperature T sub(b) . Physical parameters derived for the observed bursts are presented.