The maser mechanism for solar millisecond spike generation in inhomogeneous plasma
Irkutsk State Technical University, Irkutsk, Russia
2 Institute of Solar-Terrestrial Physics, Irkutsk, Russia
Corresponding author: A. A. Kuznetsov, email@example.com
Accepted: 5 November 2001
The generation of solar millisecond spikes on the maser cyclotron resonance is studied by taking into account the large-scale monotonic magnetic field inhomogeneity and the small-scale plasma inhomogeneity. It is shown that the presence of these inhomogeneities can have a significant effect on the generation of electromagnetic waves. In this case the structure of the inhomogeneities determines the spectral and temporal parameters of emission. A modeling of the spike dynamic spectrum in the presence of a small-scale inhomogeneity of coronal plasma is performed. It is shown that a simple model of the plasma inhomogeneity (traveling density wave) can account for many of the observed features of spikes.
Key words: Sun: flares / Sun: radio radiation / Sun: particle emission / masers
© ESO, 2002