Double plasma resonance instability as a source of solar zebra emission

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985815%3A_____%2F18%3A00494615" target="_blank" >RIV/67985815:_____/18:00494615 - isvavai.cz</a>
Alternative codes found
RIV/00216224:14310/18:00106703
Result on the web
<a href="http://dx.doi.org/10.1051/0004-6361/201731424" target="_blank" >http://dx.doi.org/10.1051/0004-6361/201731424</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1051/0004-6361/201731424" target="_blank" >10.1051/0004-6361/201731424</a>

Result language
angličtina
Original language name
Double plasma resonance instability as a source of solar zebra emission
Original language description
First using the multi-mode model, we study details of the double plasma resonance instability. We show how the distribution function of hot electrons changes during this instability. Then we show that there is a very good agreement between results obtained by the multi-mode and specific-mode models, which is caused by a dominance of the wave with the maximal growth rate. Therefore, for computations in a broad range of model parameters, we use the specific-mode model. We compute the maximal growth rates of the double plasma resonance instability with a dependence on the ratio between the upper-hybrid omega(UH) and electron-cyclotron omega(ce) frequency. We vary temperatures of both the hot and background plasma components and study their effects on the resulting growth rates. The results are compared with the analytical ones. We find a very good agreement between numerical and analytical growth rates. We also compute saturation energies of the upper-hybrid waves in a very broad range of parameters. We find that the saturation energies of the upper-hybrid waves show maxima and minima at almost the same values of omega(UH) =omega(ce) as the growth rates, but with a higher contrast between them than the growth rate maxima and minima.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10308 - Astronomy (including astrophysics,space science)

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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