Publications (12)
High-precision measurements of krypton and xenon isotopes with a new static-mode Quadrupole Ion Trap Mass Spectrometer
G. Avice, A. Belousov, K. A. Farley +5
Measuring the abundance and isotopic composition of noble gases in planetary atmospheres can answer fundamental questions in cosmochemistry and comparative planetology. However, no…
The extreme physical properties of the CoRoT-7b super-Earth
A. Léger, O. Grasset, B. Fegley +23
The search for rocky exoplanets plays an important role in our quest for extra-terrestrial life. Here, we discuss the extreme physical properties possible for the first characteriz…
Titan's atmosphere as observed by Cassini/VIMS solar occultations: CH, CO and evidence for CH absorption
L. Maltagliati, B. Bézard, S. Vinatier +6
We present an analysis of the VIMS solar occultations dataset, which allows us to extract vertically resolved information on the characteristics of Titan's atmosphere between 100-7…
Occultation observations of Saturn's rings with Cassini VIMS
P. D. Nicholson, T. Ansty, M. M. Hedman +9
We describe the prediction, design, execution and calibration of stellar and solar occultation observations of Saturn's rings by the Visual and Infrared Mapping Spectrometer (VIMS)…
Could we identify hot Ocean-Planets with CoRoT, Kepler and Doppler velocimetry?
F. Selsis, B. Chazelas, P. Borde +16
Planets less massive than about 10 MEarth are expected to have no massive H-He atmosphere and a cometary composition (50% rocks, 50% water, by mass) provided they formed beyond the…
Scientific rationale for Uranus and Neptune in situ explorations
O. Mousis, D. H. Atkinson, T. Cavalié +53
The ice giants Uranus and Neptune are the least understood class of planets in our solar system but the most frequently observed type of exoplanets. Presumed to have a small rocky…
The Architecture of the Cassini Division
M. M. Hedman, P. D. Nicholson, K. H. Baines +6
The Cassini Division in Saturn's rings contains a series of eight named gaps, three of which contain dense ringlets. Observations of stellar occultations by the Visual and Infrared…
A New Family of Planets ? "Ocean Planets"
A. Leger, F. Selsis, C. Sotin +7
A new family of planets is considered which is between rochy terrestrial planets and gaseous giant ones: "Ocean-Planets". We present the possible formation, composition and interna…
A Study of the Accuracy of Mass-Radius Relationships for Silicate-Rich and Ice-Rich Planets up to 100 Earth Masses
O. Grasset, J. Schneider, C. Sotin
A mass-radius relationship is proposed for solid planets and solid cores ranging from 1 to 100 Earth-mass planets. It relies on the assumption that solid spheres are composed of ir…
Cassini/VIMS hyperspectral observations of the HUYGENS landing site on Titan
S. Rodriguez, S. Le Mouélic, C. Sotin +7
Titan is one of the primary scientific objectives of the NASA ESA ASI Cassini Huygens mission. Scattering by haze particles in Titan's atmosphere and numerous methane absorptions d…
The Christiansen Effect in Saturn's narrow dusty rings and the spectral identification of clumps in the F ring
M. M. Hedman, P. D Nicholson, M. R. Showalter +5
Stellar occultations by Saturn's rings observed with the Visual and Infrared Mapping Spectrometer (VIMS) onboard the Cassini spacecraft reveal that dusty features such as the F rin…
Planetary internal structures
I. Baraffe, G. Chabrier, J. Fortney +1
This chapter reviews the most recent advancements on the topic of terrestrial and giant planet interiors, including Solar System and extrasolar objects. Starting from an observed m…