Abstract
The type-I radio continuum may arise from the combination of two electrostatic waves, both directed nearly normal to the magnetic field. One wave, near the upper-hybrid frequency, is generated by gyroresonance with superthermal electrons and comes into equilibrium with these electrons. The other wave, at the lower-hybrid frequency, is generated by the loss-cone instability of trapped superthermal protons in those wave directions for which the lower-hybrid frequency is an exact multiple of the proton gyrofrequency. The brightness temperature of the continuum indicates both the energy of the superthermal electrons and the existance of at least a small number of superthermal protons.
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References
Benz, A. O.: 1980, Astrophys. J. 240, 892.
Benz, A. O. and Zolliker, P.: 1985, Astron. Astrophys. 144, 227.
Berney, M. and Benz, A. O.: 1978, Astron. Astrophys. 65, 369.
Dulk, G. A. and McLean, D. J.: 1978, Solar Phys. 57, 279.
Elgarøy, Ø.: 1977, Solar Noise Storms, Pergamon Press, London.
Kerdraon, A. and Mercier, C.: 1983, Astron. Astrophys. 127, 132.
Melrose, D. B.: 1980, Plasma Astrophysics Gordon and Breach, New York.
Melrose, D. B.: 1983, Solar Phys. 87, 359.
Mercier, C., Elgarøy, Ø., Tlamicha, A., and Zlobec, P.: 1984, Solar Phys. 92, 375.
Spicer, D. S., Benz, A. O., and Huba, J. D.: 1981, Astron. Astrophys. 105, 221.
Wentzel, D. G.: 1982, Solar Phys. 79, 375.
Wentzel, D. G.: 1985, Astrophys. J. 296, 278.
Wentzel, D. G., Zlobec, P., and Messerotti, M.: 1986, Astron. Astrophys., in press.
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Wentzel, D.G. A theory for the solar type-I radio continuum. Sol Phys 103, 141–151 (1986). https://doi.org/10.1007/BF00154864
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DOI: https://doi.org/10.1007/BF00154864