Novel nonlinear mechanism of the generation of non-thermal continuum radiation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F19%3A00501961" target="_blank" >RIV/68378289:_____/19:00501961 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1063/1.5077094" target="_blank" >http://dx.doi.org/10.1063/1.5077094</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1063/1.5077094" target="_blank" >10.1063/1.5077094</a>

Result language
angličtina
Original language name
Novel nonlinear mechanism of the generation of non-thermal continuum radiation
Original language description
We study a novel nonlinear mechanism which could be responsible for the generation of the non-thermal continuum radiation. We propose a mathematical model and perform numerical simulations using 2-D electromagnetic code KEMPO2 to verify the proposed mechanism. In the simulation domain, we have density gradient and ring beam electrons in the dense region as a source of electrostatic (ES) waves through ring-beam instability. These ES waves cause non-gyrotropy of the ring velocity distribution which is necessary for the generation of the harmonic waves. Velocity component vy together with magnetic field Bz of generated Z-mode waves creates Lorentz force in the x-direction (along the magnetic field). Hence, oscillating electrons emit O-mode waves to the low density area.
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
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)

Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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