Evidence for the existence of supercooled ethane droplets under conditions prevalent in Titan’s atmosphere
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Date
2008-11-07Type
- Journal Article
ETH Bibliography
no
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Abstract
Recent evidence for ethane clouds and condensation in Titan's atmosphere raise the question whether liquid ethane condensation nuclei and supercooled liquid ethane droplets exist under the prevalent conditions. We present laboratory studies on the phase behaviour of pure ethane aerosols and ethane aerosols formed in the presence of other ice nuclei under conditions relevant to Titan's atmosphere. Combining bath gas cooling with infrared spectroscopy, we find evidence for the existence of supercooled liquid ethane aerosol droplets. The observed homogeneous freezing rates imply that supercooled ethane could be a long-lived species in ethane-rich regions of Titan's atmosphere similar to supercooled water in the Earth's atmosphere. © the Owner Societies. Show more
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publishedExternal links
Journal / series
Physical Chemistry Chemical PhysicsVolume
Pages / Article No.
Publisher
Royal Society of ChemistryOrganisational unit
03961 - Signorell, Ruth / Signorell, Ruth
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ETH Bibliography
no
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