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Isotopic ratios in titan's atmosphere from cassini cirs limb sounding: HC3N in the north

Abstract:

This Letter reports the first detection of the three 13C isotopologues of HC3N on Titan, from Cassini Composite Infrared Spectrometer (CIRS) infrared spectra. The data are limb spectra taken at latitudes N54°-N69° in 2006 and 2007 when HC3N was enhanced in the north. Using a new line list for the vs bands of all isotopologues, we have modeled the isolated emission of H13CCCN at 658.7 cm-1 and both HC13CCN and HCC13CN at 663.0 cm-1, which are blended with the Q-branch of HC3N at 663.3 cm-1 at ...

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Publisher copy:
10.1086/590534

Authors


Jennings, DE More by this author
Bézard, B More by this author
Coustenis, A More by this author
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Publisher:
Institute of Physics Publishing
Journal:
Astrophysical Journal
Volume:
681
Issue:
2 PART 2
Publication date:
2008
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
URN:
uuid:2716a9cf-b098-44ae-868b-9d8c9a2fed33
Source identifiers:
195227
Local pid:
pubs:195227

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