Simulating 3D disks with planets and central clearings

Details Simulating 3D disks with planets and central clearings Simulating 3D disks with planets and central clearings

May 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007sptz.prop40203q&link_type=abstract

Spitzer Proposal ID #40203

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Scientific paper

3-dimensional hydrodynamic numerical experiments of disks harboring planets will be carried out for the purpose of exploring the planet/disk interaction scenario to account for the central clearings and disk walls in transition disks. Transitional disks are young, 1-3 Myr old stars hosting disks with central clearings. Dozens of these disks have been discovered with Spitzer observations and strong constraints on the radial and vertical dust distribution of these disks have been made from IRS spectra and radiative transfer modeling. However because of the estimated edge wall thickness (h/r~1/5) relevant models relating disk structure to dynamical models require computationally challenging 3D simulations and so are lacking. We propose to address this problem by carrying out 3D AMR hydro simulations to examine the 3D structure of simulated disk edges, measure the flow field with azimuth and height, determine if and when sufficiently high dust deficits with the clearing can be achieved, and explore the role of dust segregation in the disk edge. Our study will definitively test the planet/disk scenario accounting for the transitional disks. Should the scenario succeed, we will place constraints on the planet masses residing in transition disks and their disk properties.

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