The horizontal distribution of water in the stratospheres of Jupiter and Saturn with Herschel/PACS

T. Cavalié (1) , H. Feuchtgruber (2) , E. Lellouch (3) , P. Hartogh (4) , R. Moreno (3) , C. Jarchow , F. Billebaud (1) , G. Orton (5) , H. Sagawa

1 sSE 2011
2 FL - foreign laboratories
3 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
4 MPS - Max-Planck-Institut für Sonnensystemforschung = Max Planck Institute for Solar System Research
5 JPL - Jet Propulsion Laboratory

In this paper, we will present disk-resolved observations in the strong water line at 66.4 μm in the stratospheres of Jupiter and Saturn, recorded with the PACS (Photodetector Array Camera and Spectrometer) instrument [12] of the Herschel Space Observatory [13] on December 15th, 2010, and January 11th, 2011, respectively. The resulting telescope beam was 900 wide allowing mapping the horizontal distribution of water in the planets' stratospheres with a good resolution for Jupiter and a more limited one for Saturn. Thesemaps enable us to draw new conclusions on the origin of water in the upper atmospheres of these planets.

Domaines: Planétologie et astrophysique de la terre [astro-ph.EP]; Planétologie et astrophysique de la terre [astro-ph.EP]

T. Cavalié, H. Feuchtgruber, E. Lellouch, P. Hartogh, R. Moreno, et al.. The horizontal distribution of water in the stratospheres of Jupiter and Saturn with Herschel/PACS. EPSC-DPS Joint Meeting 2011,, 2011, Nantes, France. pp.878. ⟨hal-00664622⟩