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Condensation-inhibited convection in hydrogen-rich atmospheres: Stability against double-diffusive processes and thermal profiles for Jupiter, Saturn, Uranus, and Neptune
Jérémy Leconte, Franck Selsis, Franck Hersant +1
In an atmosphere, a cloud condensation region is characterized by a strong vertical gradient in the abundance of the related condensing species. On Earth, the ensuing gradient of m…
Measuring stellar granulation during planet transits
A. Chiavassa, A. Caldas, F. Selsis +6
Stellar activity and convection-related surface structures might cause bias in planet detection and characterization that use these transits. Surface convection simulations help to…
The habitability of Proxima Centauri b II. Possible climates and Observability
Martin Turbet, Jeremy Leconte, Franck Selsis +5
Radial velocity monitoring has found the signature of a ~M planet located within the Habitable Zone (HZ) of Proxima Centauri \citep{Anglada16}. Despite a h…
The habitability of Proxima Centauri b. I. Irradiation, rotation and volatile inventory from formation to the present
Ignasi Ribas, Emeline Bolmont, Franck Selsis +9
Proxima b is a planet with a minimum mass of 1.3 MEarth orbiting within the habitable zone (HZ) of Proxima Centauri, a very low-mass, active star and the Sun's closest neighbor. He…
Water loss from Earth-sized planets in the habitable zones of ultracool dwarfs: Implications for the planets of TRAPPIST-1
Emeline Bolmont, Franck Selsis, James E. Owen +4
Ultracool dwarfs (UCD; K) cool to settle on the main sequence after 1 Gyr. For brown dwarfs, this cooling never stops. Their habitable zone (HZ) thus s…
Stratospheric aftermath of the 2010 Storm on Saturn as observed by the TEXES instrument. I. Temperature structure
Thierry Fouchet, Thomas K. Greathouse, Aymeric Spiga +4
We report on spectroscopic observations of Saturn's stratosphere in July 2011 with the Texas Echelon Cross Echelle Spectrograph (TEXES) mounted on the NASA InfraRed Telescope Facil…