Abstract
Very interesting radio bursts, observed during the well-known solar flare of April 27, 1981 are presented. While the sequence of reverse drift bursts, U-bursts and radio flux depression on 9.375 GHz can be explained within the beam bombardment and evaporation model, the narrowband dm-spikes uniquely organized in ”necklace” structures seem to indicate the interaction of flare loops. Arguments in favour of the plasma emission model of narrowband dm-spikes were found.
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References
Aurass, H., Chernov, G.P., Karlický, M., Kurths, J. and Mann, G.: 1987, Solar Phys. 112, 347.
Benz, A.O.: 1986, Solar Phys. 104, 99.
Sakai, J.-I. and de Jager, C.: 1991, Solar Phys. 134, 329.
Tajima, T., Brunel, F., and Sakai, J.-I.: 1982, Astrophys. J. 245, L45.
Tajima, T., Sakai, J.-I., Nakajima, H., Kosugi, T., Brunel, F., and Kundu, M.R.: 1987, Astrophys. J. 321, 1031
Takakura, T., Tsuneta, S., Ohhi, K., Nitta, N., Makishima, K., Murakami, T., Osawara, Y., Oda, M., and Miyamoto, S.: 1983, Astrophys. J. 270, L83.
Tsuneta, S., Ohhi, K., Takakura, T., Nitta, N., Makishima, K., Murakami, T., Ogawara, Y., Oda, M., and Kondo, I.: 1982, Proceedings Of HINOTORI Symposium on Solar Flares, Tokyo, p. 130.
Zhang He-Qi and Chupp, E.L.: 1989, Astrophys. and Space Sci. 153, 95.
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Karlický, M., Ai-hua, Z. New aspects of the April 27, 1981 flare. Sol Phys 146, 199–202 (1993). https://doi.org/10.1007/BF00662180
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DOI: https://doi.org/10.1007/BF00662180