During the last 20 years, many works have focused on the atmospheric concentration of CO on Titan, giving contradictory results. In particular, no measurement of the CO abundance above 300km has been done yet, due to the faint emission of CO above that altitude. On the other hand, such a study is particularly awaited as a conrmation of photochemical models of Titan's atmosphere, that predict a uniform volume mixing ratio of CO in the whole atmosphere. Moreover, given that CO is the main reservoir of oxygen in Titan's atmosphere and its presence is linked to water, the matter is of astrobiological interest too.
CO concentration in the upper stratosphere and mesosphere of Titan: non-LTE analysis of VIMS dayside limb observations at 4.7 um
F Fabiano;ML Moriconi;M Ridolfi;BM Dinelli
2015
Abstract
During the last 20 years, many works have focused on the atmospheric concentration of CO on Titan, giving contradictory results. In particular, no measurement of the CO abundance above 300km has been done yet, due to the faint emission of CO above that altitude. On the other hand, such a study is particularly awaited as a conrmation of photochemical models of Titan's atmosphere, that predict a uniform volume mixing ratio of CO in the whole atmosphere. Moreover, given that CO is the main reservoir of oxygen in Titan's atmosphere and its presence is linked to water, the matter is of astrobiological interest too.File in questo prodotto:
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