Title of article :
Spoke formation under moving plasma clouds
Author/Authors :
Farmer، نويسنده , , Alison J. and Goldreich، نويسنده , , Peter، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2005
Pages :
4
From page :
535
To page :
538
Abstract :
Goertz and Morfill [Goertz, C.K., Morfill, G., 1988. Icarus 53, 219–229] propose that spokes on Saturnʹs rings form under radially moving plasma clouds produced by meteoroid impacts. We demonstrate that the speed at which a plasma cloud can move relative to the ring material is bounded from above by the difference between the Keplerian and corotation velocities. The radial orientation of new spokes requires radial speeds that are at least an order of magnitude larger than this upper limit, thus the model advanced by Goertz and Morfill fails to make radial spokes.
Keywords :
Planetary ringsSaturn , Saturnmagnetosphere
Journal title :
Icarus
Serial Year :
2005
Journal title :
Icarus
Record number :
2373851
Link To Document :
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