Morphological differences between Saturn's ultraviolet aurorae and those of Earth and Jupiter

J. T. Clarke (), J.-C. Gérard, D. Grodent, S. Wannawichian, J. Gustin, J. Connerney, F. Crary, M. Dougherty, W. Kurth, S. W. H. Cowley, E. J. Bunce, T. Hill and J. Kim
Additional contact information
J. T. Clarke: Boston University
J.-C. Gérard: Université de Liège
D. Grodent: Université de Liège
S. Wannawichian: Boston University
J. Gustin: Université de Liège
J. Connerney: NASA Goddard Space Flight Center
F. Crary: Southwest Research Institute
M. Dougherty: Imperial College
W. Kurth: University of Iowa
S. W. H. Cowley: University of Leicester
E. J. Bunce: University of Leicester
T. Hill: Rice University
J. Kim: Yonsei University

Nature, 2005, vol. 433, issue 7027, 717-719

Abstract: Saturn's aurora The cover shows Hubble Space Telescope (HST) images of Saturn and its polar auroral emissions on 24, 26 and 28 January 2004. Visible wavelength images are combined with ultraviolet images of the south polar region. The strong brightening of the aurora on 28 January corresponded with a large disturbance in the solar wind. These images were obtained during a campaign by the Cassini spacecraft to measure the solar wind approaching Saturn and the Saturn kilometric emissions, and the combined results are presented in three letters in this issue. Saturn's aurorae differ in shape and form from those seen on Earth and on Jupiter, and they also differ in their response to the solar wind. Saturn's strongest radio emissions appear to be closely tied to the polar aurora.

Date: 2005
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DOI: 10.1038/nature03331

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