Computer Science
Scientific paper
Sep 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003esasp.535..471b&link_type=abstract
In: Solar variability as an input to the Earth's environment. International Solar Cycle Studies (ISCS) Symposium, 23 - 28 June 2
Computer Science
1
Magnetic Reconnection, Plasma Radio Emission
Scientific paper
As was already suggested in our previous models of the lace bursts and the narrow-band dm-spikes both these spectral types are formed in radio sources with MHD turbulence. Since such conditions are, as commonly accepted, in the reconnection out-flow jets, it is reasonable to locate radio sources of these bursts just there. The purpose of this paper is to present global view on relevant plasma processes. Starting from a 2-D MHD reconnection model the plasma density and magnetic field are determined. Assuming a propagation of an unstable distribution function outwards from the reconnection diffusion region along chosen magnetic field lines, contributions to the radio flux due to the double-resonance instability are computed. Integrating over an entire source volume the artificial radio spectra are obtained. It is shown that depending on MHD turbulence properties either the lace-burst or the dm-spikes are observed.
Barta Miroslav
Karlicky Marian
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