Evidence of plasma resonance instability from observations of solar decimetric fine structures

Autor:	Fernandas, F. C. R., Sawant, H. S., Cecatto, J. R., Krishan, V., Karlický, M., Reinaldo Rosa
Předmět:	Astrophysics::High Energy Astrophysical Phenomena
Zdroj:	Scopus-Elsevier Brazilian Journal of Physics v.33 n.1 2003 Brazilian Journal of Physics Sociedade Brasileira de Física (SBF) instacron:SBF Brazilian Journal of Physics, Volume: 33, Issue: 1, Pages: 109-114, Published: MAR 2003
Popis:	The solar radio emissions in the decimetric frequency range (above 1000 MHz) are very rich in temporal and/or spectral fine structures. The Brazilian Solar Spectroscope (BSS) at INPE started operating in 1998. Since then, various types of fine structures, in the frequency range of (1000-2500) MHz, with high time and frequency resolutions have been recorded. The observed bursts include dot-like emissions and chains of dots, lace bursts exhibiting intensity variations as a function of frequency and zebra pattern emissions. It is suggested that they can be generated by a plasma resonance instability mechanism. This model can explain many features of the observed fine structures.
Databáze:	OpenAIRE
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