The apparent height of radio sources above the photosphere was determined for the period of 1968-1971, by a method which makes use of the displacement in latitude of the centroid of the radio emission relative to the associated optical feature. The apparent height fell progressively in time by amou
Solar radio emission at 9.1 cm and sector boundaries
โ Scribed by W. Graf; R. N. Bracewell
- Publisher
- Springer
- Year
- 1975
- Tongue
- English
- Weight
- 485 KB
- Volume
- 44
- Category
- Article
- ISSN
- 0038-0938
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โฆ Synopsis
A possible connection between solar radio emission from 1.0 to 9.4 GHz and the interplanetary sector boundaries has been previously reported in the literature. The present research does not support the previous work as expected. The 9.1 cm activity appears to be organized around sector boundaries only in a very limited sense in that the distribution of very strong active regions peaks near the --/ ยง boundaries. However, this phenomenon is only observed during the most active part of the solar cycle. A peculiar asymmetry is found regarding the length of the positive and negative sectors.
๐ SIMILAR VOLUMES
Several solar active regions were observed during the 1976 vernal equinox with the 3-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 about 3 arc sec at 3.7 cm and 8