Nov 01, 2016
Mutual attraction between stars and planets
The evolution of the structure and the rotation of the central star drastically modify the orbits of the planets

In a special issue of the international journal Celestial Mechanics and Dynamical Astronomy of November 2016, devoted to the study of the tidal interactions, two researchers from the University of Namur and the Astrophysics Division- AIM Laboratory of CEA-Irfu have computed the dynamics of short-period planets of different types orbiting low-mass mass stars. Their model is the first to simultaneously take into account the evolution over time of the structure and the rotation of the central star and its impact on the tidal interactions between stars and planets. They demonstrate that planets in a close orbit can be strongly influenced by changes in the structure and the rotation of the star that determine the survival or disappearance of the planet.


Contact : Stéphane MATHIS

Publication :

« Effects of the rotation and tidal dissipation history of stars on the evolution of close-in planets »
Emeline Bolmont [1] and  Stéphane Mathis [2] 
[1] University of Namur (Belgique), [2] Service d’Astrophysique-Laboratoire AIM (CEA- France)
published in  Celestial Mechanics and Dynamical Astronomy, volume 126 (Novembre 2016), pages 275-296
for an electronic version


See also    : - Interactions magnétique étoile-planète (18 janvier 2016)
                  - Les étoiles vieillissantes remises à l’heure (04 janvier 2016)
                  - Les marées, élément clé de la relation entre étoiles et planètes (06 octobre 2015) 
                  - PLATO (PLAnetary Transits and Oscillations of star) (20 février 2014)
                  - Modéliser l’évolution dynamique des étoiles et de leur cortège planétaire (13 avril 2015)

Redaction : E. Bolmont, S. Mathis, J.M. Bonnet-Bidaud

#3824 - Last update : 11/02 2016


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