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- Publications
- Influence
Habitable planets around the star Gliese 581
- F. Selsis, J. Kasting, B. Levrard, J. Paillet, I. Ribas, X. Delfosse
- Physics
- 28 October 2007
Radial velocity surveys are now able to detect terrestrial planets at habitable distance from M-type stars. Recently, two planets with minimum masses below 10 Earth masses were reported in a triple… Expand
Orbital forcing of the martian polar layered deposits
- J. Laskar, B. Levrard, J. Mustard
- Geology, Medicine
- Nature
- 26 September 2002
Since the first images of polar regions on Mars revealed alternating bright and dark layers, there has been speculation that their formation might be tied to the planet's orbital climate forcing. But… Expand
Is tidal heating sufficient to explain bloated exoplanets? Consistent calculations accounting for finite initial eccentricity
- J. Leconte, G. Chabrier, I. Baraffe, B. Levrard
- Physics
- 3 April 2010
We present the consistent evolution of short-period exoplanets coupling the tidal and gravothermal evolution of the planet. Contrarily to previous similar studies, our calculations are based on the… Expand
Formation of Glaciers on Mars by Atmospheric Precipitation at High Obliquity
- F. Forget, R. Haberle, F. Montmessin, B. Levrard, J. Head
- Geology, Medicine
- Science
- 20 January 2006
Surface conditions on Mars are currently cold and dry, with water ice unstable on the surface except near the poles. However, geologically recent glacierlike landforms have been identified in the… Expand
Recent ice-rich deposits formed at high latitudes on Mars by sublimation of unstable equatorial ice during low obliquity
- B. Levrard, F. Forget, F. Montmessin, J. Laskar
- Geology, Medicine
- Nature
- 28 October 2004
Observations from the gamma-ray spectrometer instrument suite on the Mars Odyssey spacecraft have been interpreted as indicating the presence of vast reservoirs of near-surface ice in high latitudes… Expand
Recent formation and evolution of northern Martian polar layered deposits as inferred from a Global Climate Model
- B. Levrard, F. Forget, F. Montmessin, J. Laskar
- Geology
- 1 June 2007
[1] We present a time-marching model which simulates the exchange of water ice between the Martian northern cap, the tropics, and a high-latitude surface reservoir. Net annual exchange rates of water… Expand
FALLING TRANSITING EXTRASOLAR GIANT PLANETS
- B. Levrard, C. Winisdoerffer, G. Chabrier
- Physics
- 14 January 2009
We revisit the tidal stability of extrasolar systems harboring a transiting planet and demonstrate that, independently of any tidal model, none, but one (HAT-P-2b) of these planets has a tidal… Expand
Amazonian northern mid-latitude glaciation on Mars: A proposed climate scenario
- J. Madeleine, F. Forget, J. Head, B. Levrard, F. Montmessin, E. Millour
- Geology
- 1 October 2009
Recent geological observations in the northern mid-latitudes of Mars show evidence for past glacial activity during the late Amazonian, similar to the integrated glacial landsystems in the Dry… Expand
Tidal dissipation within hot Jupiters : a new appraisal
- B. Levrard, A. Correia, G. Chabrier, I. Baraffe, F. Selsis, J. Laskar
- Physics
- 1 December 2006
Context. Eccentricity or obliquity tides have been proposed as the missing energy source that may explain the anomalously large radius of some transiting “hot Jupiters”. To maintain a non-zero and… Expand
Rotational Dynamics of Europa
The rotational state of Europa is only rather poorly constrained at present. It is known to rotate about an axis that is nearly perpendicular to the orbit plane, at a rate that is nearly constant and… Expand