Discrete sources of cryovolcanism on the nucleus of Comet 29P/Schwassmann-Wachmann and their origin
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- 作者：Richard Miles rmiles@baa.u-net.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Centaurs ; Comets ; nucleus ; Cosmochemistry ; Volcanism
- 刊名：Icarus
- 出版年：2016
- 出版时间：1 July 2016
- 年：2016
- 卷：272
- 期：Complete
- 页码：387-413
- 全文大小：5009 K
文摘
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64 outburst times of Comet 29P in 2002–2014 identified and unique periodicity found.
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Rotation rate of 29P’s nucleus is extremely slow (mean solar day = 57.71 ± 0.06 d).
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Activity is seasonal with a large fraction of the nucleus inactive during 2010–2014.
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Outburst mechanism outlined involving subsurface melting and CO/N2 gas ex-solution.
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Heats of solution of CO and N2 gas provide a key internal source of thermal energy.