Decadal timescale variability of the Enceladus plumes inferred from Cassini images
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- 作者：Andrew P. Ingersoll ; api@gps.caltech.edu" class="auth_mail" title="E-mail the corresponding author ; Shawn P. Ewald spe@gps.caltech.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Enceladus ; Saturn satellites ; Satellites ; Atmospheres
- 刊名：Icarus
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：282
- 期：Complete
- 页码：260-275
- 全文大小：3356 K
文摘
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The plumes decreased by a factor of ∼2 from 2005 to 2015.
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Decadal trend roughly matches a decrease in eccentricity.
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Interannual stochasic variability of plumes is likely.
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Launch velocity is less at apocenter, greater at pericenter.
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A secondary maximum occurs at 90 deg mean anomaly.