Formánek, T;
Santolík, O;
Souček, J;
Píša, D;
Zaslavsky, A;
Kretzschmar, M;
Maksimovic, M;
... Nicolaou, G; + view all
(2025)
Polarization Analysis of Type III Langmuir/Z-mode Waves with Coherent Magnetic Component Observations by Solar Orbiter.
Astrophysical Journal Letters
, 985
(2)
, Article L29. 10.3847/2041-8213/add687.
Preview |
Text
Formanek_2025_ApJL_985_L29.pdf - Published Version Download (1MB) | Preview |
Abstract
Observations from the Solar Orbiter spacecraft provide unique insights into the interaction between electron beams and the plasma background in the source regions of type III radio emissions. We analyze this interaction by examining the high-frequency electric and magnetic components of in situ wave measurements, focusing on their polarization properties. Using electron data from onboard instruments, we model the electron velocity distribution function and numerically solve the dispersion relation. We compare the predicted polarization of the electric and magnetic components with the observations. Our findings are consistent with propagation in the Langmuir/Z-mode at an oblique wavevector. We explain the magnetic component and transverse polarization by the presence of small density fluctuations, without the need for mode conversion.
| Type: | Article |
|---|---|
| Title: | Polarization Analysis of Type III Langmuir/Z-mode Waves with Coherent Magnetic Component Observations by Solar Orbiter |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.3847/2041-8213/add687 |
| Publisher version: | https://doi.org/10.3847/2041-8213/add687 |
| Language: | English |
| Additional information: | Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Space and Climate Physics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10209629 |
Archive Staff Only
 |
View Item |
