Authors: Yongfeng Yang
Saturn’s B ring mysterious spokes are widely thought to be plasma clouds suspended over the ring plane, but recent work and theoretical analysis don’t agree with this understanding. Here we propose that the spokes could be the shadows of clouds. Numerical simulation reveals that the migration of shadows partially walking in and out B ring during day and the geometry between sunlight, observer, and ring system together constraint the characteristics of seen preferentially on the morning ansa, longitudinal distortion, and short-lived active history. A cloud and rain process would have been seasonally taking place in the ring system.
Comments: 11 Pages. 4 figures
[v1] 6 Jul 2011
[v2] 2012-02-10 02:09:07
[v3] 2012-04-05 04:07:18
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