Mathematics – Logic
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008agufm.p21b..02o&link_type=abstract
American Geophysical Union, Fall Meeting 2008, abstract #P21B-02
Mathematics
Logic
0343 Planetary Atmospheres (5210, 5405, 5704)
Scientific paper
The Galileo entry probe yielded measurements critical to constraining the models of the origin and evolution of Jupiter and its atmosphere. Supersolar abundances (relative to H) were found for the heavy noble gases, Ar, Kr and Xe, and for C, N and S (from CH4, NH3 and H2S), but O/H (from H2O) could not be determined as the probe entered a meteorologically anomalous (five-micron) "hot spot". These findings have led to two competing hypotheses, both requiring cold planetesimals. For Saturn, C/H has been determined, but abundances of the other heavy elements fall beyond the remote sensing capabilities of either Cassini or the Voyager Missions. While the 2011 Juno Mission is expected to measure the deep atmospheric abundance of water, hence O/H, at Jupiter, the missing suite of heavy elements, helium, and critical isotopes of hydrogen, nitrogen, carbon and helium in Saturn require an entry probe. A comparison of such data for the two gas giant planets is essential to fully comprehend the formation of the gas giant planets and their atmospheres. This talk will present the current status.
Atreya Sushil K.
Owen Theodore
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