Skip to Main content Skip to Navigation
Journal articles

Simultaneous observations of Jovian quasi-periodic radio emissions by the Galileo and Cassini spacecraft

Abstract : and the extended Galileo orbital mission provided a unique opportunity to obtain simultaneous measurements with two spacecraft of many Jovian plasma wave and radio emissions. One of these emissions is Jovian type III radio emissions, also known as Jovian quasi-periodic (QP) emissions. The simultaneous observations of the QP emissions show very similar characteristics, even when the two spacecraft are separated by large distances and located at very different local times (LT). These similarities suggest that this emission is beamed in a strobe light like manner (over a large angular range) and not like a search light rotating with Jupiter's magnetic field, as many other Jovian radio emissions are. The initial source of the QP bursts is likely located near Jupiter. As the emissions propagate through the magnetosphere, the QP bursts appear as enhancements of the trapped continuum. At the magnetosheath the higher density plasma disperses the lower frequency component of the bursts, producing the characteristic ''type III like'' spectral shape.
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-03274728
Contributor : Baptiste Cecconi <>
Submitted on : Wednesday, June 30, 2021 - 1:46:32 PM
Last modification on : Tuesday, July 13, 2021 - 3:27:11 AM

File

Hospodarsky_2004.pdf
Publisher files allowed on an open archive

Identifiers

Citation

G. Hospodarsky, W Kurth, B Cecconi, D Gurnett, M Kaiser, et al.. Simultaneous observations of Jovian quasi-periodic radio emissions by the Galileo and Cassini spacecraft. Journal of Geophysical Research Space Physics, American Geophysical Union/Wiley, 2004, 109 (A9), pp.A09S07. ⟨10.1029/2003JA010263⟩. ⟨hal-03274728⟩

Share

Metrics

Record views

49

Files downloads

46