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Search for spatial variation in the jovian N-15/N-14 ratio from Cassini/CIRS observations

Abstract:

We have used the spectra obtained by the Composite Infrared Spectrometer (CIRS) onboard the Cassini spacecraft to search for latitudinal variation in the 15N/14N ratio on Jupiter. We found no variations statistically significant given the observational and model uncertainties. The absence of latitudinal variations demonstrates that 15NH3 is not fractionated in Jupiter's atmosphere, and that the measured 15N/14N represents Jupiter's global value. Our mean value for the global jovian 15N/14N ra...

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Publication status:
Published

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Authors


Fouchet, T More by this author
Irwin, PGJ More by this author
Parrish, P More by this author
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atmos Ocean and Planet Physics
More by this author
Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Atmos Ocean and Planet Physics
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Journal:
ICARUS
Volume:
172
Issue:
1
Pages:
50-58
Publication date:
2004-11-05
DOI:
ISSN:
0019-1035
URN:
uuid:2efb3c23-be13-41a7-bb12-8132f66ea525
Source identifiers:
15108
Local pid:
pubs:15108

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