Microwave Emission from a Maxwellian Magnetoplasma
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概要
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The microwave emission from a Maxwellian magnetoplasma in a uniform magnetic field is studied near electron cyclotron harmonic frequencies. Following the dressed test particle approach, the energy lost by one test electron is calculated and, from this, the total emission is obtained by integrating over all electrons weighted by their velocity distribution. The dispersion relation for the electrostatic wave propagating in the direction nearly perpendicular to a magnetic field fas, in general, two solutions, comprising a slow and a fast electrostatic wave. It is found on the CMA diagram that the emission by slow electrons whose velocity is nearly the thermal velocity has a peak near lower harmonic side and the shift of the peak from the harmonic scarcely depends on electron density, while the emission by fast superthermal electrons has no peak and the position of the emission by electrons with the specified high velocity moves from the lower harmonic side to the higher side with increase of the density.
- 社団法人日本物理学会の論文
- 1970-09-05