Jupiter lightning-induced whistler and sferic events with Waves and MWR during Juno perijoves

0491732 - ÚFA 2019 RIV US eng J - Článek v odborném periodiku
Imai, M. - Santolík, Ondřej - Brown, S. T. - Kolmašová, Ivana - Kurth, W. S. - Janssen, M. A. - Hospodarsky, G. B. - Gurnett, D. A. - Bolton, S.J. - Levin, S. M.
Jupiter lightning-induced whistler and sferic events with Waves and MWR during Juno perijoves.
Geophysical Research Letters. Roč. 45, č. 15 (2018), s. 7268-7276. ISSN 0094-8276. E-ISSN 1944-8007
Grant ostatní: AV ČR(CZ) MSM100421701; AV ČR(CZ) AP1401
Program: Program na podporu mezinárodní spolupráce začínajících výzkumných pracovníků; Akademická prémie - Praemium Academiae
Institucionální podpora: RVO:68378289
Klíčová slova: Jupiter * Juno * MWR * sferic * Waves * whistler
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 4.578, rok: 2018
https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2018GL078864

During the Juno perijove explorations from 27 August, 2016, through 1 September, 2017, strong electromagnetic impulses induced by Jupiter lightning were detected by the Microwave Radiometer (MWR) instrument in the form of 600‐MHz sferics, and recorded by the Waves instrument in the form of Jovian low‐dispersion whistlers discovered in waveform snapshots below 20 kHz. We found 71 overlapping events including sferics while Waves waveforms were available. Eleven of these also included whistler detections by Waves. By measuring the separation distances between the MWR boresight and the whistler exit point, we estimated the distance whistlers propagate below the ionosphere before exiting to the magnetosphere, called the coupling distance, to be typically one to several thousand of km with a possibility of no sub‐ionospheric propagation, which gives a new constraint on the atmospheric whistler propagation.
Trvalý link: http://hdl.handle.net/11104/0285358