BOLMONT, Emeline; RAYMOND, Sean N.; SELSIS, Franck

Metadatos

Licencia de uso del documento

BOLMONT, Emeline
ECLIPSE 2014
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Université Sciences et Technologies - Bordeaux 1 [UB]

RAYMOND, Sean N.
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Université Sciences et Technologies - Bordeaux 1 [UB]
ECLIPSE 2014

SELSIS, Franck
Observatoire aquitain des sciences de l'univers [OASU]
Laboratoire d'Astrophysique de Bordeaux [Pessac] [LAB]
Université Sciences et Technologies - Bordeaux 1 [UB]
ECLIPSE 2014

Idioma

Communication dans un congrès

Este ítem está publicado en

2014-06-03, Paris. 2014p. 63

Resumen en inglés

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, the influence of tides on the orbital and spin evolution of planets can strongly affect their climate and their capacity to host surface liquid water. We illustrate the role of tides and dynamics with the extreme case of planets orbiting around brown dwarfs. In multiple planet systems, the eccentricity is excited by planet-planet interactions. Planets are therefore heated up from the inside by the tidally-induced friction. This process can heat a habitable zone planet to such a level that surface liquid water cannot exist. We also talk about the newly discovered potentially habitable Earth-sized planet Kepler-186f. Given the poorly estimated age of the system, the planet could still be evolving towards synchronization and have a high obliquity or be pseudo-synchronized with a zero obliquity. These two configurations would have a different effect on the climate of this planet.< Leer menos

Palabras clave en inglés

Astrophysics

Earth and Planetary Astrophysics

Orígen

Importado de Hal

Centros de investigación

Laboratoire d'Astrophysique de Bordeaux (LAB) - UMR 5804