Vibrational temperatures in Saturn's atmosphere

Mathieu Barthelemy (1) , C. Parkinson (2) , Jean Lilensten (1)

1 LPG - Laboratoire de Planétologie de Grenoble
2 CALTECH - California Institute of Technology

The Lyman alpha and beta lines are in coincidence with lines of the H2 Lyman and Werner systems. Some of these lines are hot lines from v=1 and v=2 vibrationnal levels. We have calculated the effect of these hot lines on the lyman alpha and beta dayglow in the case of Saturn using a Feautrier radiative transfer code. In the jovian atmosphere, the vibrationnal temperatures are not equal to the kinetic ones. Considering this fact we have calculated the evolution of the lyman alpha and beta dayglow with the vibrationnal temperatures in the case of Saturn.

Mathieu Barthelemy, C. Parkinson, Jean Lilensten. Vibrational temperatures in Saturn's atmosphere. EGU General Assembly 2005, Apr 2005, Vienne, Austria. ⟨insu-00364500⟩