Physics
Scientific paper
Jun 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008icar..195..938c&link_type=abstract
Icarus, Volume 195, Issue 2, p. 938-940.
Physics
4
Scientific paper
Lisse et al. [Lisse, C.M., Kraemer, K.E., Nuth III, J.A., Li, A., Joswiak, D., 2007. Icarus 187, 69 86] recently presented a new analysis of an ISO spectrum of Comet C/1995 O1 (Hale Bopp), from which they claimed the identification of many new dust species. Among them are PAHs, which were not found in our first analysis of the ISO spectra. We present here a re-examination of the ISO observations of Comet Hale Bopp. From the absence of PAHs features in the 5.25 8.5 μm region, we infer that PAHs are at least twice less abundant than derived by Lisse et al. The carbonate feature at 7.00 μm is marginally present, but lower by a factor 2 to 3 than predicted by the model of Lisse et al.
Bockelée-Morvan Dominique
Crovisier Jacques
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