Signatures of Magnetoacoustic Wave Trains in Solar Decimetric Radio Type IV Bursts
by Hana Mészárosová, Marian Karlický, Ján Rybák, and Karel Jiricka

2009-11-09 110 views

It has been theoretically predicted (Roberts et al. 1983, 1984) that the periodicity of magnetoacoustic modes can be modified by the time evolution of an impulsively generated signal. One of the obvious sources of such a disturbance is the impulsive flare process. These magnetoacoustic waves are trapped in regions with higher density (e.g., in coronal loops) acting as waveguides. The impulsively generated wave in such a coronal waveguide exhibits three […]