Whistler Mode Waves Associated With Broadband Auroral Electron Precipitation at Jupiter

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F18%3A00501769" target="_blank" >RIV/68378289:_____/18:00501769 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1029/2018GL078566" target="_blank" >http://dx.doi.org/10.1029/2018GL078566</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1029/2018GL078566" target="_blank" >10.1029/2018GL078566</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Whistler Mode Waves Associated With Broadband Auroral Electron Precipitation at Jupiter

Popis výsledku v původním jazyce

Large amplitude electromagnetic plasma waves are observed simultaneously with intense fluxes of electrons precipitating on auroral field lines at Jupiter. Here we present plasma wave observations from the Juno Waves instrument obtained during an instance of very intense broadband electron precipitation observed by the Jupiter Energetic Particle Detector Instrument connecting to Jupiter's main auroral oval. The wave spectrum extends from 50 Hz to similar to 10 kHz with peak-to-peak amplitudes of similar to 10 nT in the magnetic channel and of similar to 1 V/m in the electric channel, representing some of the most intense plasma waves observed by Juno. The E and B fields of these electromagnetic waves are correlated and have apparent polarization perpendicular to Jupiter's magnetic field with a downward Poynting flux. We conclude the plasma waves are whistler mode emissions with a possible admixture of ion-cyclotron or Alfven waves and may be important in the broadband electron acceleration.

Název v anglickém jazyce

Whistler Mode Waves Associated With Broadband Auroral Electron Precipitation at Jupiter

Popis výsledku anglicky

Large amplitude electromagnetic plasma waves are observed simultaneously with intense fluxes of electrons precipitating on auroral field lines at Jupiter. Here we present plasma wave observations from the Juno Waves instrument obtained during an instance of very intense broadband electron precipitation observed by the Jupiter Energetic Particle Detector Instrument connecting to Jupiter's main auroral oval. The wave spectrum extends from 50 Hz to similar to 10 kHz with peak-to-peak amplitudes of similar to 10 nT in the magnetic channel and of similar to 1 V/m in the electric channel, representing some of the most intense plasma waves observed by Juno. The E and B fields of these electromagnetic waves are correlated and have apparent polarization perpendicular to Jupiter's magnetic field with a downward Poynting flux. We conclude the plasma waves are whistler mode emissions with a possible admixture of ion-cyclotron or Alfven waves and may be important in the broadband electron acceleration.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Geophysical Research Letters

ISSN

0094-8276

e-ISSN

—

Svazek periodika

45

Číslo periodika v rámci svazku

18

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

9372-9379

Kód UT WoS článku

000447761300005

EID výsledku v databázi Scopus

2-s2.0-85053717575