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Influence of different parameters on the chemical composition of warm neptunes
Olivia Venot, Marcelino Agúndez, Franck Selsis +2
We developed a 1D photo-thermochemical model to study the atmosphere of warm exoplanets. The chemical scheme used in this model is completely new in planetology and has been constr…
Dynamics of exoplanetary systems, links to their habitability
Emeline Bolmont, Sean N. Raymond, Franck Selsis
Our knowledge of planets' orbital dynamics, which was based on Solar System studies, has been challenged by the diversity of exoplanetary systems. Around cool and ultra cool dwarfs…
A Necro-Biological Explanation for the Fermi Paradox
Stephen R. Kane, Franck Selsis
As we learn more about the frequency and size distribution of exoplanets, we are discovering that terrestrial planets are exceedingly common. The distribution of orbital periods in…
An Earth-sized Planet in the Habitable Zone of a Cool Star
Elisa V. Quintana, Thomas Barclay, Sean N. Raymond +20
The quest for Earth-like planets represents a major focus of current exoplanet research. While planets that are Earth-sized and smaller have been detected, these planets reside in…
Formation, tidal evolution and habitability of the Kepler-186 system
Emeline Bolmont, Sean N. Raymond, Philip von Paris +4
The Kepler-186 system consists of five planets orbiting an early-M dwarf. The planets have physical radii of 1.0-1.50 R and orbital periods of 4 to 130 days. The R$_…
Pseudo 2D chemical model of hot Jupiter atmospheres: application to HD 209458b and HD 189733b
Marcelino Agundez, Vivien Parmentier, Olivia Venot +2
We have developed a pseudo two-dimensional model of a planetary atmosphere, which takes into account thermochemical kinetics, photochemistry, vertical mixing, and horizontal transp…