Nonlinear parametric instability and millisecond solar radio spikes

✍ Scribed by De-Yu Wang; Ding-Yi Li

• Publisher: Springer
• Year: 1991
• Tongue: English
• Weight: 575 KB
• Volume: 135
• Category: Article
• ISSN: 0038-0938
• DOI: 10.1007/bf00147509

✦ Synopsis

A model of nonlinear parametric instability (NLPI) modulation is suggested to explain the millisecond spikes in solar decimetric radio emission. The radio emission energy will periodically transfer to two other waves, and the intensity of the radio emission will be modified by NI,PI processes in the corona, when the matching conditions of three-wave coupling are satisfied. This model can simultaneously explain the duration of spikes, why the millisecond spikes have not been observed in other solar radio emission, and the relation between the duration of the spikes and the intensity and the frequency of the radio emission as well.