Temperatures, Winds, and Composition in the Saturnian System
Michael Flasar
(1)
,
Richard K. Achterberg
(2)
,
Barney J. Conrath
(3)
,
John C. Pearl
(1)
,
Gordon L. Bjoraker
(1)
,
Donald E. Jennings
(1)
,
Paul N. Romani
(1)
,
Amy A. Simon-Miller
(1)
,
Virgil G. Kunde
(4)
,
Conor A. Nixon
(4)
,
Bruno Bézard
(5, 6, 7)
,
Glenn S. Orton
(8)
,
Linda J. Spilker
(8)
,
John R. Spencer
(9)
,
Patrick G. J. Irwin
(10)
,
Nicholas A. Teanby
(10)
,
Tobias C. Owen
(11)
,
J. Brasunas
(1)
,
M. E. Segura
(12)
,
Ronald C. Carlson
(2)
,
Andrei Mamoutkine
(2)
,
Peter J. Gierasch
(3)
,
P. J. Schinder
(3)
,
Mark R. Showalter
(13)
,
C. Ferrari
(14)
,
Maria Antonella Barucci
(5, 6, 7)
,
Régis Courtin
(5, 6, 7)
,
Athéna Coustenis
(5, 6, 7)
,
Thierry Fouchet
(5, 6, 7)
,
Daniel Gautier
(5, 6, 7)
,
Emmanuel Lellouch
(5, 6, 7)
,
André Marten
(5, 6, 7)
,
Renée Prangé
(5, 6, 7)
,
Darell Strobel
(15, 5, 6, 7)
,
Simon B. Calcutt
(10)
,
Peter L. Read
(10)
,
Frederic W. Taylor
(10)
,
N. Bowles
(10)
,
Robert E. Samuelson
(4)
,
Mian M. Abbas
(16)
,
François Raulin
(17)
,
Peter A. Ade
(18)
,
Scott G. Edgington
(8)
,
Stuart Pilorz
(8)
,
B. Wallis
(8)
,
E. H. Wishnow
(19)
1
National Aeronautics and Space Administration (NASA)/Goddard Space Flight Center, Code 693, Greenbelt
2 Science Systems and Applications, Inc., 5900 Princess Garden Parkway, Suite 300, Lanham
3 Department of Astronomy, Cornell University
4 Department of Astronomy, University of Maryland
5 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
6 Physique des plasmas
7 Pôle Planétologie du LESIA
8 JPL - Jet Propulsion Laboratory
9 Department of Space Studies, Southwest Research Institute
10 AOPP - Department of Atmospheric, Oceanic and Planetary Physics [Oxford]
11 Institute for Astronomy, University of Hawaii
12 QSS Group
13 ARC - NASA Ames Research Center
14 CEA - Commissariat à l'énergie atomique et aux énergies alternatives
15 Department of Earth and Planetary Sciences, Johns Hopkins University
16 Marshall Space Flight Center, NASA
17 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques
18 Cardiff University
19 LLNL - Lawrence Livermore National Laboratory
2 Science Systems and Applications, Inc., 5900 Princess Garden Parkway, Suite 300, Lanham
3 Department of Astronomy, Cornell University
4 Department of Astronomy, University of Maryland
5 LESIA - Laboratoire d'études spatiales et d'instrumentation en astrophysique
6 Physique des plasmas
7 Pôle Planétologie du LESIA
8 JPL - Jet Propulsion Laboratory
9 Department of Space Studies, Southwest Research Institute
10 AOPP - Department of Atmospheric, Oceanic and Planetary Physics [Oxford]
11 Institute for Astronomy, University of Hawaii
12 QSS Group
13 ARC - NASA Ames Research Center
14 CEA - Commissariat à l'énergie atomique et aux énergies alternatives
15 Department of Earth and Planetary Sciences, Johns Hopkins University
16 Marshall Space Flight Center, NASA
17 LISA (UMR_7583) - Laboratoire Interuniversitaire des Systèmes Atmosphériques
18 Cardiff University
19 LLNL - Lawrence Livermore National Laboratory
C. Ferrari
- Fonction : Auteur
- PersonId : 1111568
- IdHAL : cecile-ferrari
- ORCID : 0000-0001-5962-7439
Thierry Fouchet
- Fonction : Auteur
- PersonId : 756578
- ORCID : 0000-0001-9040-8285
- IdRef : 089352556
Résumé
Stratospheric temperatures on Saturn imply a strong decay of the equatorial winds with altitude. If the decrease in winds reported from recent Hubble Space Telescope images is not a temporal change, then the features tracked must have been at least 130 kilometers higher than in earlier studies. Saturn's south polar stratosphere is warmer than predicted from simple radiative models. The C/H ratio on Saturn is seven times solar, twice Jupiter's. Saturn's ring temperatures have radial variations down to the smallest scale resolved (100 kilometers). Diurnal surface temperature variations on Phoebe suggest a more porous regolith than on the jovian satellites.