HCN-C₆H₆ co-condensed ice cloud in Titan’s stratosphere: Laboratory study of the CIRS-observed HASP cloud

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dc.contributor.authorMvondo, Delphine Nna
dc.contributor.authorAnderson, Carrie M
dc.contributor.authorSamuelson, Robert E
dc.date.accessioned2019-10-09T15:04:35Z
dc.date.available2019-10-09T15:04:35Z
dc.date.issued2019-09
dc.descriptionEPSC-DPS Joint Meeting 2019en_US
dc.description.abstractFor thirteen years, the Cassini mission to explore Saturn and its icy moons has provided a large repository of data on Titan’s atmosphere. Ice clouds have been repeatedly observed in Titan's stratosphere by the Cassini Composite InfraRed Spectrometer (CIRS). Pure nitrile ice clouds have been identified but the chemical composition of other observed ice clouds is still undetermined. We propose cocondensation to be a formation mechanism of these other clouds. With the aim to identify the HighAltitude South Polar (HASP) ice cloud, the most recently observed cloud during the early Titan’s southern winter, we have conducted laboratory thin ice film spectroscopy of a series of organic mixed ices and found that a C6H6-HCN co-condensed ice, enriched in benzene, is the best chemical candidate for the HASP cloud.en_US
dc.description.sponsorshipD.N.-M acknowledges research funding support by the NASA Postdoctoral Program at NASA GSFC, administered by the USRA; and by the NASA Internal Scientist Funding Model (ISFM) through the Fundamental Laboratory Research (FLaRe) work package. C.M.A. and R.E.S. acknowledge funding from the Cassini Project.en_US
dc.description.urihttps://meetingorganizer.copernicus.org/EPSC-DPS2019/EPSC-DPS2019-1005-2.pdfen_US
dc.format.extent2 pagesen_US
dc.genreconference papers and proceedingsen_US
dc.identifierdoi:10.13016/m2nwnf-6ace
dc.identifier.urihttp://hdl.handle.net/11603/14998
dc.language.isoen_USen_US
dc.publisherEPSCen_US
dc.relation.isAvailableAtThe University of Maryland, Baltimore County (UMBC)
dc.relation.ispartofUMBC Center for Space Sciences and Technology
dc.relation.ispartofUMBC Faculty Collection
dc.rightsThis item is likely protected under Title 17 of the U.S. Copyright Law. Unless on a Creative Commons license, for uses protected by Copyright Law, contact the copyright holder or the author.
dc.rightsAttribution 4.0 International (CC BY 4.0)*
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/*
dc.subjectTitan’s atmosphereen_US
dc.subjectPure nitrile ice cloudsen_US
dc.subjectcocondensationen_US
dc.subjectlaboratory thin ice film spectroscopyen_US
dc.subjectbenzeneen_US
dc.subjectformation mechanismen_US
dc.titleHCN-C₆H₆ co-condensed ice cloud in Titan’s stratosphere: Laboratory study of the CIRS-observed HASP clouden_US
dc.typeTexten_US

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