Modeling the Influence of Embedded Planets on the Morphology of Circumstellar Debris Disks

Details Modeling the Influence of Embedded Planets on the Morphology of Circumstellar Debris Disks Modeling the Influence of Embedded Planets on the Morphology of Circumstellar Debris Disks

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006dps....38.1008g&link_type=abstract

American Astronomical Society, DPS meeting #38, #10.08; Bulletin of the American Astronomical Society, Vol. 38, p.495

Astronomy and Astrophysics

Astronomy

Scientific paper

Both ground and space-based observations of nearby circumstellar debris disks have revealed a wide variety of disk morphologies, for example, various degrees of clearing at the disk centers. Typically, the sculpting of debris disks is attributed to the presence of unseen planetary perturbers embedded in the disk, although general quantitative links between the physical parameters of embedded planets and disk structures have yet to be established. We aim to numerically investigate the orbital interaction of disk material with embedded planets, accounting for gravitational forces, Poynting-Robertson and solar wind drag, and radiation pressure; consideration of gas dynamics and collisional processes are less important for the more mature systems that are the focus of this study. Each simulation involves the central star, one planet, and a representative set of dust particles, and we explore the parameter space by varying the planet mass and particle size. Analysis of these numerical models will produce more quantitative information on the efficiency of dynamical processes related to the planet such as scattering, accretion, and capturing into orbital resonance, and will be of great relevance to potential future planet finding missions such as SIM PlanetQuest and Terrestrial Planet Finder.
K. Grogan acknowledges support of the JPL R&TD program. M. Lin acknowledges support of the Caltech SURF program.

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