Recent Very Bright Type IV Solar Metre-Wave Radio Emissions
- 1 January 1980
- journal article
- Published by Cambridge University Press (CUP) in Symposium - International Astronomical Union
- Vol. 91, 381-385
- https://doi.org/10.1017/s0074180900067863
Abstract
Stewart et al. (1978) have reported moving Type IV solar metre-wave radio outbursts with brightness temperatures between 108 and 1010 K. We now report Culgoora radioheliograph observations of four more Type IV radio sources, some moving, some stationary, but all with brightness temperatures above 109 K, and one with a brightness temperature above 1013 K. We also describe one of the previously reported events (that of 1977 September 20) in more detail. The interest of these events is that their high brightnesses place great strain upon the gyro-synchrotron theory of radio emission.Keywords
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