Details

Autor(en) / Beteiligte

• Santos-Costa, D
• de Pater, I
• Sault, R J
• Janssen, M A
• Levin, S M
• Bolton, S J

Titel

Multifrequency analysis of the Jovian electron-belt radiation during the Cassini flyby of Jupiter

Ist Teil von

• Astronomy and astrophysics (Berlin), 2014-08, Vol.568, p.1-4

Erscheinungsjahr

2014

Link zum Volltext

Quelle

EZB Electronic Journals Library

Beschreibungen/Notizen

• We examine Very Large Array (VLA) observations of Jupiter to present evidence of fluctuations in the emission produced by the electron belt in January 2001. Investigating the source of fluctuations will provide new opportunities to discuss the scenarios of temporal changes in Jupiter's synchrotron radiation (i.e., the electron belt) in future data analysis and modeling work. Our analysis of VLA data sets suggests that the spatial distribution of the electron belt on 2-3 January 2001 is different from that usually observed. Our knowledge of solar activity at the time of the Cassini flyby of Jupiter suggests that the emission from the electron radiation belt was responding to external influences, most likely to solar wind structures rather than to solar radio flux, on a timescale of days to a couple of weeks. Combined results from a multisource data analysis -- including spacecraft and radio observations -- are needed to confirm this relationship.