Speaker
Description
Recently, a sub-arcsecond resolution survey of the dust continuum emission from nearby protoplanetary disks, conducted with the Submillimeter Array showed a strong correlation between the sizes and luminosities of the disks. Performing models of gas and dust disk evolution, we recreate this relation using a large grid of models that varies the initial conditions. We calculate the disk continuum emission and the effective radius for all models as function of time.
We simulate two different cases: a smooth disk surface density profile, and one that includes pressure bumps. By selecting only the disks that lie on the observed size-luminosity relation we constrain the parameter range and search for trends between the initial conditions and the survival frequency of every disk. By applying neural networks, we determine the influence of every parameter on the final outcome, showing significant results for the initial disk mass, the turbulence-parameter alpha, and the stellar mass.
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