Physics
Scientific paper
Apr 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009georl..3608101n&link_type=abstract
Geophysical Research Letters, Volume 36, Issue 8, CiteID L08101
Physics
2
Planetary Sciences: Fluid Planets: Aurorae, Planetary Sciences: Fluid Planets: Magnetospheres (2756), Planetary Sciences: Solar System Objects: Jupiter, Magnetospheric Physics: Auroral Phenomena (2407), Magnetospheric Physics: Planetary Magnetospheres (5443, 5737, 6033)
Scientific paper
In this paper we report a phenomenon hitherto unobserved in Jupiter's ultraviolet polar auroras, specifically thin (˜0.6° wide), long-lived quasi-sun-aligned polar auroral filaments (PAFs) of brightness ˜100 kR spanning the highly variable region poleward of the main oval. This observation, made using Hubble Space Telescope images, is significant since no coherent structures have previously been observed in Jupiter's very high latitude auroral region, and it may help shed light on the dynamics of Jupiter's under-explored magnetotail. PAFs have been observed in 4 sets of observations over 6 days in 2007, and their occurrence appears to be independent of impinging solar wind conditions. The feature comprises two components: the section toward noon remains fixed in orientation toward the sun, while the anti-sunward section rotates. We estimate overall rotation rates of ˜0-45% of corotation, values which may indicate the rotation rate of Jupiter's polar ionosphere and tail lobes.
Clarke John T.
Gérard Jean-Claude
Grodent Denis
Nichols Jonathan D.
No associations
LandOfFree
Observations of Jovian polar auroral filaments does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Observations of Jovian polar auroral filaments, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of Jovian polar auroral filaments will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1521662