Other
Scientific paper
Oct 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997p%26ss...45.1203l&link_type=abstract
Planetary and Space Science, Volume 45, Issue 10, p. 1203-1212.
Other
11
Scientific paper
A detailed analysis is presented of observations of the CO (2-1) line at 230 GHz in Jupiter performed with the IRAM 30 m telescope after the collision of comet Shoemaker-Levy 9. Observations of site K, 33 h after impact, are focused on. Using independent information on the perturbed jovian stratospheric thermal profile, the CO column density, vertical distribution and total mass deposited at the K impact site are derived. It is found that CO is restricted to upper stratospheric levels, at pressures less than 50-200 μbar, with an average mixing ratio of about 1.5 × 10-4. The total CO mass is (1.5 +/- 0.6) × 1014 g. It is shown that these results are generally consistent with observations of CO at other wavelengths. The K fragment mass is inferred to be in the range (1-10) × 1014 g, where the largest source of uncertainty comes from the unknown behavior of the cometary dust in the shock chemistry. Comparison with observations performed at IRAM over a 1 yr period following the impacts indicates that the CO mass brought into Jupiter's atmosphere by the SL9 fragments has remained approximately constant over this period.
Bezard Bruno
Bockelée-Morvan Dominique
Colom Pierre
Crovisier Jacques
Festou Michel
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