Particle simulation of electromagnetic emissions from electrostatic instability driven by an electron ring beam on the density gradient

0501716 - ÚFA 2019 RIV US eng J - Článek v odborném periodiku
Horký, Miroslav - Omura, Y. - Santolík, Ondřej
Particle simulation of electromagnetic emissions from electrostatic instability driven by an electron ring beam on the density gradient.
Physics of Plasmas. Roč. 25, č. 4 (2018), č. článku 042905. ISSN 1070-664X. E-ISSN 1089-7674
Grant CEP: GA ČR(CZ) GA17-08772S
Grant ostatní: AV ČR(CZ) AP1401
Program: Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:68378289
Klíčová slova: electromagnetic wave emission * ion-cyclotron waves * upper hybrid layer * bernstein waves * nonthermal continuum * inner magnetosphere * mode waves * plasma * conversion * frequency
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 1.913, rok: 2018
https://aip.scitation.org/doi/10.1063/1.5025912

This paper presents the wave mode conversion between electrostatic and electromagnetic waves on the plasma density gradient. We use 2-D electromagnetic code KEMPO2 implemented with the generation of density gradient to simulate such a conversion process. In the dense region, we use ring beam instability to generate electron Bernstein waves and we study the temporal evolution of wave spectra, velocity distributions, Poynting flux, and electric and magnetic energies to observe the wave mode conversion. Such a conversion process can be a source of electromagnetic emissions which are routinely measured by spacecraft on the plasmapause density gradient. Published by AIP Publishing.
Trvalý link: http://hdl.handle.net/11104/0293715