Heat of solution: A new source of thermal energy in the subsurface of cometary nuclei and the gas-exsolution mechanism driving outbursts of Comet 29P/Schwassmann‒Wachmann and other comets
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- 作者：Richard Miles ; rmiles@baa.u-net.com" class="auth_mail" title="E-mail the corresponding author ; rmiles.btee@btinternet.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Centaurs ; Comets ; Comets ; nucleus ; Ices ; Volcanism
- 刊名：Icarus
- 出版年：2016
- 出版时间：1 July 2016
- 年：2016
- 卷：272
- 期：Complete
- 页码：356-386
- 全文大小：4568 K
文摘
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Pressure-induced melting of cometary ices by CO and CO2 gases predicted.
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Enthalpy (heat) of solution of CO in CH4 liberated at ∼65 to 95 K.
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Heat of solution of CO2 in CH3OH released at ∼150 to 200 K.
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CO and CO2 gas exsolution can drive outbursts at heliocentric distances of 1‒15 AU.
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Novel mechanism to explain outbursts of Comets 29P/S-W1, 17P/Holmes, etc.