Number of the records: 1
Properties of quasi-periodic ELF/VLF emissions from a conjugated event between the Arase satellite, Van Allen Probes A, and B
- 1.
SYSNO ASEP 0508487 Document Type A - Abstract R&D Document Type The record was not marked in the RIV R&D Document Type Není vybrán druh dokumentu Title Properties of quasi-periodic ELF/VLF emissions from a conjugated event between the Arase satellite, Van Allen Probes A, and B Author(s) Martinez-Calderon, C. (JP)
Němec, F. (CZ)
Katoh, Y. (JP)
Shiokawa, K. (JP)
Kasahara, Y. (JP)
Matsuda, S. (JP)
Fuminori, T. (JP)
Kumamoto, A. (JP)
Teramoto, M. (JP)
Matsuoka, A. (JP)
Miyoshi, Y. (JP)
Santolík, Ondřej (UFA-U) RID, ORCID
Hospodarsky, G. (US)Number of authors 13 Source Title IUGG 2019 Abstract Book. - Potsdam : International Union of Geodesy and Geophysics, 2019
A07p-003Number of pages 1 s. Publication form Online - E Action IUGG General Assembly /27./ Event date 08.07.2019 - 18.07.2019 VEvent location Montréal Country CA - Canada Event type WRD Language eng - English Country DE - Germany Keywords magnetosphere ; plasma waves ; extremely low frequency (ELF) emission ; very low frequency (VLF) emissions ; Van Allen Probes ; Arase satellite Subject RIV BL - Plasma and Gas Discharge Physics OECD category Fluids and plasma physics (including surface physics) Institutional support UFA-U - RVO:68378289 Annotation Extremely Low (ELF) and Very Low Frequency (VLF) emissions in the 3Hz to 30 kHz frequency range are plasma waves naturally present in the magnetosphere. ELF/VLF waves can interact through cyclotron resonance with electrons in the radiation belts, accelerate or scatter them, and play a fundamental role in the belt dynamics. Even now, ELF/VLF conjugated events between satellites or between satellites and ground receivers remains rare with only a few reported events. Here, we report the first quasi-periodic (QP) emission simultaneously observed by the Arase (ERG) satellite, Van Allen Probes A, and B (RBSP). The event was observed on November 29, 2018 from approximately 11 to 13:30 UT by both RBSP, while ERG observed it from 12 to 14 UT. All three spacecraft observed very similar frequency-temporal features. Using the intensities measured at different locations we discuss the approximate location of the source of the emissions. From wave analysis and propagation parameters we discuss the propagation of the waves through the magnetosphere using preliminary ray tracing. We will also discuss the eventual periodicity and spectral shape differences between QP elements at different locations. Data from RBSP suggests that this event is related to an extension of a hiss emission to higher frequencies. We will use the event parameters to discuss this possibility. Finally, considering the data related to this event and other coordinated fly-bys, we hope to increase our chances of future conjugated events between the three spacecraft. Workplace Institute of Atmospheric Physics Contact Kateřina Adamovičová, adamovicova@ufa.cas.cz, Tel.: 272 016 012 ; Kateřina Potužníková, kaca@ufa.cas.cz, Tel.: 272 016 019 Year of Publishing 2020
Number of the records: 1