Does ice float in Titan¡¯s lakes and seas?

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• 作者：Jason D. Hofgartner ; ^{jhofgartner@astro.cornell.edu} ; Jonathan I. Lunine ^{jlunine@astro.cornell.edu}
• 关键词：Titan ; Titan ; surface ; Titan ; hydrology ; Organic chemistry
• 刊名：Icarus
• 出版年：2013
• 出版时间：March, 2013
• 年：2013
• 卷：223
• 期：1
• 页码：628-631
• 全文大小：300 K

文摘

We model Titan¡¯s lakes and seas as methane-ethane-nitrogen systems and model the buoyancy of solids in these systems assuming thermodynamic equilibrium. We find that ice will float in methane-rich lakes for all temperatures below the freezing point of pure methane and that ice will also float in ethane-rich seas provided the ice has an air porosity of greater than 5 % by volume.