CO in the stratospheres of Saturn, Uranus and Neptune

T. Cavalié (1, 2, 3) , F. Billebaud (1, 2, 3) , E. Lellouch (4) , T. Fouchet (4) , M. Dobrijevic (1, 2, 3) , T. Encrenaz (4) , J. Brillet (1, 2, 3) , Fabrice Herpin (1, 2, 3)

1 LAB - Laboratoire d'Astrophysique de Bordeaux [Pessac]
2 L3AB - Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux
3 OASU - Observatoire aquitain des sciences de l'univers
4 OP - Observatoire de Paris - Site de Paris

The question of the origin of oxygenated compounds in the atmosphere of the giant planets was raised since the detection of H2O and CO2 in the stratospheres of the four planets (Feuchtgruber et al. 1997, 1999, Lellouch et al. 1999, Burgdorf et al. 2006). The tropospheric cold trap implies an external origin for both molecules.

Domaines: Cosmologie et astrophysique extra-galactique [astro-ph.CO]; Astrophysique [astro-ph]

T. Cavalié, F. Billebaud, E. Lellouch, T. Fouchet, M. Dobrijevic, et al.. CO in the stratospheres of Saturn, Uranus and Neptune. Herschel Open Time Key Program Workshop - 20 - 21 February 2007 - ESA/ESTEC - Noordwijk, The Netherlands, 2007, Noordwijk, Netherlands. ⟨hal-00139602⟩