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Article Dans Une Revue Journal of Geophysical Research Space Physics Année : 2021

Latitudinal Beaming of Jupiter's Radio Emissions From Juno/Waves Flux Density Measurements

Résumé

The observations from the Juno spacecraft in polar orbit of Jupiter provide for the first time a complete view of Jupiter's radio emissions from all latitudes. Characterizing the latitudinal distribution of radio emissions' occurrence and intensity is a useful step for elucidating their origin. Here, we analyze for that purpose the first 3 years of observations from the Waves experiment on the Juno spacecraft (mid-2016 to mid-2019). Two prerequisites for the construction of the latitudinal distribution of intensities for each Jovian radio component are (a) to work with absolute flux densities and (b) to be able to associate each radio measurement with a specific radio component. Accordingly, we develop a method to convert the Juno/Waves data in flux densities and then we build a catalog of all Jovian radio components over the first 3 years of Juno's orbital mission. From these, we derive occurrence and intensity distributions versus observer's latitude and frequency for each component; these will be the basis for future detailed studies and interpretations of each component's characteristics and origin.
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hal-03368294 , version 1 (06-10-2021)

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Corentin Kenelm Louis, Philippe Zarka, Keshika Dabidin-Audam, Paul-Alexandre Lampson, Fabiola P. Magalhaes, et al.. Latitudinal Beaming of Jupiter's Radio Emissions From Juno/Waves Flux Density Measurements. Journal of Geophysical Research Space Physics, 2021, 126 (10), pp.e2021JA029435. ⟨10.1029/2021JA029435⟩. ⟨hal-03368294⟩
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