Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011sf2a.conf..429m&link_type=abstract
SF2A-2011: Proceedings of the Annual meeting of the French Society of Astronomy and Astrophysics Eds.: G. Alecian, K. Belkacem,
Astronomy and Astrophysics
Astrophysics
Circumstellar Disks, Extrasolar Planetary Systems
Scientific paper
Debris disks are detected through scattered light or thermal emission of their dust, produced by collisions or erosion of planetesimals. The rate of collisions depends on the number density of planetesimals and on the dynamical excitation and geometry of the disk. We have studied a debris disk gravitationally perturbed by a single inner planet, by using a numerical integration over a large parameter space for both the orbital elements of the planet and the disk geometry. We discuss our findings in the context of observed orbital elements for exoplanets and plausible disk geometries. We have studied whether or not a disk can be significantly disrupted, and stripped of its planetesimals, because of this interaction. We have focused on how the depletion of the disk depends on the masses of the central star and planet. We have found that this dependence is not monotonous, except for low mass stars.
Lestrade Jean-Francois
Morey Etienne
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