Evolution of Titan's atmospheric aerosols under high-altitude ultraviolet irradiation
Résumé
Titan is the biggest satellite of Saturn whose atmosphere is mainly composed of molecular
nitrogen (N2) and methane (CH4) with an average ratio of 98/2 %.
The Cassini/Huygens mission revealed that the interaction between those neutral molecules
and the UV solar light leads to a complex photochemistry that produces heavy organic
molecules. When those molecules condense, they will then become the solid aerosols which
are responsible for the brownish haze surrounding Titan.
Between 1000 and 600km, the VUV solar radiations are still significant and will continue
to modify the physical, chemical and optical properties of those grains. A change in these
parameters can impact the radiative budget of Titan’s atmosphere.
| Origine | Fichiers produits par l'(les) auteur(s) |
|---|
Loading...