Dec 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agufm.p12c0517w&link_type=abstract
American Geophysical Union, Fall Meeting 2001, abstract #P12C-0517
Physics
5704 Atmospheres: Composition And Chemistry, 5709 Composition, 5729 Ionospheres (2459), 6220 Jupiter
Scientific paper
Benzene was first detected on Jupiter by the Vogayer Infrared Interferometer Spectrometer (IRIS) in the northern auroral region in 1985. Recently, the Short-Wavelength Spectrometer (SWS) on the Infrared Space Observatory (ISO) has made extensive observations of benzene on Jupiter. The results show enhancement of benzene abundance in the auroral regions over the Jupiter disk. To study the details of benzene chemistry on Jupiter, we have developed a one-dimensional photochemical model that couples updated neutral and ion chemistry. We discuss six neutral and seven ion chemical schemes for benzene formation in auroral and non-auroral regions, identifying major uncertainties in the chemical kinetics. The benzene abundance at low latitude is computed to be 1.0 x 1015 molecules cm-2 above 50-mbar pressure level, which is consistent with the ISO observation. In auroral regions, the incident energy flux is re-evaluated with Galileo Ultraviolet Spectrometer (UVS) data and the effects of ion chemistry as an additional source of benzene is investigate.
Ajello Joseph M.
Wong Angela
Yung Yuk L.
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