Journal
GEOPHYSICAL RESEARCH LETTERS
Volume 37, Issue -, Pages -Publisher
AMER GEOPHYSICAL UNION
DOI: 10.1029/2010GL044057
Keywords
-
Categories
Funding
- STFC [ST/H002480/1]
- NASA [HST-GO-10862.01-A]
- STScI
- Belgian Fund for Scientific Research (FNRS)
- STFC
- CNES
- STFC [ST/H002480/1, PP/E000983/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H002480/1, PP/E000983/1] Funding Source: researchfish
Ask authors/readers for more resources
It is well known that a wide range of kronian magnetospheric phenomena, including the Saturn kilometric radiation (SKR), exhibit oscillations near the planetary rotation period. However, although the SKR is believed to be generated by unstable auroral electrons, no connection has been established to date between diurnal SKR modulations and UV auroral power. We use an empirical SKR phase determined from Cassini observations to order the 'quiet time' total emitted UV auroral power as observed by the Hubble Space Telescope in programs during the interval 2005-2009. Our results indicate that both the northern and southern UV powers are dependent on SKR phase, varying diurnally by factors of similar to 3. We also show that the UV variation originates principally from the morning half of the oval, consistent with previous observations of the SKR sources. Citation: Nichols, J. D., B. Cecconi, J. T. Clarke, S. W. H. Cowley, J.-C. Gerard, A. Grocott, D. Grodent, L. Lamy, and P. Zarka (2010), Variation of Saturn's UV aurora with SKR phase, Geophys. Res. Lett., 37, L15102, doi: 10.1029/2010GL044057.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available