Polarization of Langmuir waves observed by RPW-TDS instrument on Solar Orbiter during Type III radio bursts
- 1Institute of Atmospheric Physics of the Czech Academy of Sciences, Dept. of Space Physics, Prague, Czech Republic
- 2LESIA, Observatoire de Paris, Université PSL, CNRS, Sorbonne Université, Université de Paris, Paris, France
- 3LPP, CNRS, Ecole Polytechnique, Sorbonne Université, Observatoire de Paris, Université Paris-Saclay, Palaiseau, Paris, France
- 4Swedish Institute of Space Physics, Uppsala, Sweden
- 5Radboud Radio Lab, Department of Astrophysics, Radboud University, Nijmegen, The Netherlands
- 6LPC2E, CNRS, 3A avenue de la Recherche Scientifique, Orléans, France
- 7Institut für Experimentelle und Angewandte Physik, Christian- Albrechts-Universität zu Kiel, Kiel, Germany
- 8Universidad de Alcalá, Space Research Group, 28805 Alcalá de Henares, Spain
We investigate the polarization of Langmuir waves observed by the Time Domain Sampler (TDS) module of the Radio and Plasma Waves instrument on Solar Orbiter during several extensive Type III burst events. During its two-year-long cruise phase, Solar orbiter often crossed the source region of the Type III radio emission and observed the Langmuir waves generated by solar energetic electrons. The waves are known to exhibit complex modulation and often non-trivial elliptical polarization which sometimes rapidly changes on the timescales of tens of milliseconds. We show that the observed waveforms are typically composed of multiple sub-packets with a relatively short coherence length. We investigate the correlation between the polarization of the waves, simultaneously observed energetic electrons beams and other plasma properties.
How to cite: Soucek, J., Bandara, S., Pisa, D., Santolik, O., Maksimovic, M., Chust, T., Khotyaintsev, Y., Vecchio, A., Kretzschmar, M., Wimmer-Schweingruber, R., Berger, L., Rodriquez-Pacheco, J., and Gomez-Herrero, R.: Polarization of Langmuir waves observed by RPW-TDS instrument on Solar Orbiter during Type III radio bursts, EGU General Assembly 2022, Vienna, Austria, 23–27 May 2022, EGU22-3859, https://doi.org/10.5194/egusphere-egu22-3859, 2022.
