235 citations · 689 across the 17 of their papers we have counts for
16 papers · 1 filter
Stratigraphic and Isotopic Evolution of the Martian Polar Caps from Paleo-Climate Models
E. Vos, O. Aharonson, N. Schorghofer +4
Exposed scarps images and ice-penetrating radar measurements in the North Polar Layered Deposits (NPLD) of Mars show alternating layers that provide an archive of past climate osci…
Thermal structure and aerosols in Mars' atmosphere from TIRVIM/ACS onboard the ExoMars Trace Gas Orbiter : validation of the retrieval algorithm
Sandrine Guerlet, N. Ignatiev, F. Forget +12
The Atmospheric Chemistry Suite (ACS) onboard the ExoMars Trace Gas Orbiter (TGO) monitors the Martian atmosphere through different spectral intervals in the infrared light. We pre…
Constraints on the structure and seasonal variations of Triton's atmosphere from the 5 October 2017 stellar occultation and previous observations
J. Marques Oliveira, B. Sicardy, A. R. Gomes-Júnior +234
A stellar occultation by Neptune's main satellite, Triton, was observed on 5 October 2017 from Europe, North Africa, and the USA. We derived 90 light curves from this event, 42 of…
No detection of SO2, H2S, or OCS in the atmosphere of Mars from the first two Martian years of observations from TGO/ACS
Ashwin S. Braude, F. Montmessin, K. S. Olsen +13
The detection of sulphur species in the Martian atmosphere would be a strong indicator of volcanic outgassing from the surface of Mars. We wish to establish the presence of SO2, H2…
Volatile transport modeling on Triton with new observational constraints
T. Bertrand, E. Lellouch, B. J. Holler +18
Neptune's moon Triton shares many similarities with Pluto, including volatile cycles of N2, CH4 and CO, and represents a benchmark case for the study of surface-atmosphere interact…
TRAPPIST Habitable Atmosphere Intercomparison (THAI) workshop report
Thomas J. Fauchez, Martin Turbet, Denis E. Sergeev +31
The era of atmospheric characterization of terrestrial exoplanets is just around the corner. Modeling prior to observations is crucial in order to predict the observational challen…
3-D Global modelling of the early martian climate under a dense CO2+H2 atmosphere and for a wide range of surface water inventories
Martin Turbet, François Forget
CO2+H2 greenhouse warming has recently emerged as a promising scenario to sufficiently warm the early martian surface to allow the formation of valley networks and lakes. Here we p…
Global Climate Model Occultation Lightcurves Tested by August 2018 Ground-Based Stellar Occultation
Sihe Chen, Eliot F. Young, Leslie A. Young +3
Pluto's atmospheric profiles (temperature and pressure) have been studied for decades from stellar occultation lightcurves. In this paper, we look at recent Pluto Global Climate Mo…
Pluto's Haze as a Surface Material
W. M. Grundy, T. Bertrand, R. P. Binzel +37
Pluto's atmospheric haze settles out rapidly compared with geological timescales. It needs to be accounted for as a surface material, distinct from Pluto's icy bedrock and from the…
The environmental effects of very large bolide impacts on early Mars explored with a hierarchy of numerical models
Martin Turbet, Cédric Gillmann, François Forget +4
We use a hierarchy of numerical models (a 3-D Global Climate Model, a 1-D radiative-convective model and a 2-D Mantle Dynamics model) to explore the environmental effects of very l…
A warm or a cold early Earth? New insights from a 3-D climate-carbon model
Benjamin Charnay, Guillaume Le Hir, Frédéric Fluteau +2
Oxygen isotopes in marine cherts have been used to infer hot oceans during the Archean with temperatures between 60°C (333 K) and 80°C (353 K). Such climates are challenging for th…
3D modeling of organic haze in Pluto's atmosphere
Tanguy Bertrand, François Forget
The New Horizons spacecraft, which flew by Pluto on July 14, 2015, revealed the presence of haze in Pluto's atmosphere that were formed by CH4/N2 photochemistry at high altitudes i…
Cooling of the Martian thermosphere by CO radiation and gravity waves: An intercomparison study with two general circulation models
Alexander S. Medvedev, Francisco González-Galindo, Erdal Yiğit +3
Observations show that the lower thermosphere of Mars (100--140 km) is up to 40 K colder than the current general circulation models (GCMs) can reproduce. Possible candidates…
Titan's past and future: 3D modeling of a pure nitrogen atmosphere and geological implications
Benjamin Charnay, François Forget, Gabriel Tobie +2
Several clues indicate that Titan's atmosphere has been depleted in methane during some period of its history, possibly as recently as 0.5-1 billion years ago. It could also happen…
Constraining physics of very hot super-Earths with the James Webb Telescope. The case of Corot-7b
Benjamin Samuel, Jeremy Leconte, Daniel Rouan +3
Super-Earths with solid surfaces such CoRot-7b and Kepler-10b are expected to be extremely hot. It has been suggested that they must be atmosphere-free and that a lava ocean is pre…
3D climate modeling of close-in land planets: Circulation patterns, climate moist bistability and habitability
Jérémy Leconte, Francois Forget, Benjamin Charnay +3
The inner edge of the classical habitable zone is often defined by the critical flux needed to trigger the runaway greenhouse instability. This 1D notion of a critical flux, howeve…