Annales Geophysicae
Annales Geophysicae
ANGEO
Articles | Volume 33, issue 9
Articles | Volume 33, issue 9
https://doi.org/10.5194/angeo-33-1195-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/angeo-33-1195-2015
© Author(s) 2015. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 33, issue 9
Regular paper
 | 
30 Sep 2015
Regular paper |  | 30 Sep 2015

The latitudinal structure of the nightside outer magnetosphere of Saturn as revealed by velocity moments of thermal ions

Z. Nemeth, K. Szego, L. Foldy, M. G. Kivelson, X. Jia, K. M. Ramer, S. W. H. Cowley, G. Provan, and M. Thomsen

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Short summary
The latitudinal structure of the nightside outer magnetosphere of Saturn was studied by using Cassini CAPS plasma measurements. It was found that the plasma density and the azimuthal velocity decrease simultaneously as the spacecraft moves away from the magnetic equator. The magnetosphere exhibits an “onion shell like” structure: the inner regions spin rapidly corotating with the planet, but moving outward and/or further away from the equatorial plane one can encounter slower and slower shells.
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