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Growth and dispersion of the Shoemaker-Levy 9 impact features from HST imaging

Published online by Cambridge University Press:  02 August 2016

Reta F. Beebe
Reta F. Beebe*
Affiliation:
Department of Astronomy, New Mexico State University, P.O. Box 30001/Dept. 4500, Las Cruces, NM 88003, USA

Abstract

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The Hubble Space Telescope Wide Field Planetary Camera 2 imaging data provide the highest spatial resolution of individual Shoemaker-Levy 9 impact sites. Analysis of images obtained with the F410M filter yielded horizontal translation rates of tropospheric cloud structures and the east-west components have been interpreted as zonal winds which vary with latitude. When the tropospheric zonal winds between —60° and —30°, which were derived from the SL9 images, are compared with Voyager data there are no discernible changes in the magnitude or latitudinal positions of wind minima and maxima. This result provides additional evidence of the long-term stability of the zonal winds. Changes in individual sites during a two week period in July 1994 have been mapped. Their evolution is consistent with zonal winds decreasing with height and it provides evidence that local circulation associated with isolated weather systems perturbs the lower stratosphere.

Type
Research Article
Information
International Astronomical Union Colloquium , Volume 156: The Collision of Comet Shoemaker-Levy 9 and Jupiter , May 1996 , pp. 307 - 328
Copyright
Copyright © Cambridge University Press 1996

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