Spectrum of slowly varying component of solar radio emission on millimeter wavelengths |
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| Authors: | Atsushi Tsuchiya Kozo Takahashi |
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| Institution: | (1) Tokyo Astronomical Observatory, University of Tokyo, Mitaka, Tokyo, Japan;(2) Radio Research Laboratories, Kokubunji, Tokyo, Japan |
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| Abstract: | The spectrum of the S-component of solar radio emission has been investigated at 4 GHz, 17 GHz, 35 GHz, 70 GHz, and 94 GHz. The spectrum for a spot group which appeared late in March 1966 (McMath plage No. 8223), seems to be flat at the frequencies above about 35 GHz. This implies that the emission is due to pure free-free emission at the frequencies above 35 GHz. |
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