The nonlinear scattering mechanism of the spectrum of the type IV solar decimetric radio bursts

Details The nonlinear scattering mechanism of the spectrum of the type IV solar decimetric radio bursts The nonlinear scattering mechanism of the spectrum of the type IV solar decimetric radio bursts

Sep 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980acasn..21..272y&link_type=abstract

Acta Astronomica Sinica, vol. 21, Sept. 1980, p. 272-277. In Chinese, with abstract in English.

Astronomy and Astrophysics

Astronomy

Decimeter Waves, Magnetic Mirrors, Plasma Radiation, Solar Spectra, Type 4 Bursts, Wave Scattering, Electron Accelerators, Electron Distribution, Nonlinearity, Stellar Models, Synchrotron Radiation, Transverse Waves

Scientific paper

A mechanism of coherent plasma radiation of solar IV(dm) radio burst and a technique for estimating its spectrum are proposed by considering that the source of the burst is a magnetic mirror located 0.6 solar radius above the coronal solar surface. The trapped nonthermal electrons excite a Langmuir wave, which converts itself into a transverse wave of IV(dm) bursts by nonlinear scattering. The spectrum computed by a numerical method during the Aug. 2, 1972 event agrees with the observations; the nonthermal electron distribution by height and the total electron quantity of 10 to the 32nd in the source are determined. The latter is 1 to 2 orders of magnitude lower than the amount obtained by gyrosynchrotron radiation.

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