Abundances of C{_2}H{_4} (Ethylene) and Other Small Molecules in Neptune's Atmosphere from Voyager 2 Infrared Observations

Details Abundances of C{_2}H{_4} (Ethylene) and Other Small Molecules in Neptune's Atmosphere from Voyager 2 Infrared Observations Abundances of C{_2}H{_4} (Ethylene) and Other Small Molecules in Neptune's Atmosphere from Voyager 2 Infrared Observations

Jul 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997dps....29.1517m&link_type=abstract

American Astronomical Society, DPS meeting #29, #15.17; Bulletin of the American Astronomical Society, Vol. 29, p.995

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Infrared spectra measured between 2 days before to 2 days after Voyager 2's August 1989 encounter were averaged. These 2351 spectra ranged from 30deg N to 80deg S. In this average, we have previously identified the Q-branch of nu_ {7} C{_2}H{_4} (ethylene) at 950 cm(-1) . From a recent measurement of ethylene's nu_ {7} band strength, we have redetermined a mole fraction 3.5(+3.5}_{-1.8) x 10(-9) for ethylene in Neptune's atmosphere. Abundances of other gaseous atmospheric molecules containing small numbers of atoms will also be presented.

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