SPIEGEL, David S.; RAYMOND, Sean N.; DRESSING, C. D.

Metadatos

Licencia de uso del documento

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]
Laboratoire d'astrodynamique, d'astrophysique et d'aéronomie de bordeaux [L3AB]

DRESSING, C. D.

Idioma

Communication dans un congrès

Este ítem está publicado en

American Astronomical Society, AAS Meeting #217, #221.04; Bulletin of the American Astronomical Society, Vol. 43, 2011, American Astronomical Society, AAS Meeting #217, #221.04; Bulletin of the American Astronomical Society, Vol. 43, 2011, 2011-01-09, Seattle. 2011-01, vol. 217, p. 22104

Resumen en inglés

The recent and growing realization that many exoplanetary systems have structures very different from our own motivates a reconsideration of what is meant by "Habitable." For instance, although the Earth's orbit is never far from circular, the architecture of exoplanet systems could cause some terrestrial planets around other stars to experience substantial changes in eccentricity. Eccentricity variations could lead to climate changes, including possible "phase transitions" such as the snowball transition (or its opposite). I will describe how giant planets on sufficiently eccentric orbits can excite extreme eccentricity oscillations in the orbit of a habitable terrestrial planet. This shows that the longterm habitability (and astronomical observables) of a terrestrial planet can depend on the detailed architecture of the planetary system in which it resides.< Leer menos

Orígen

Importado de Hal

Centros de investigación

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