Dust Migration and Morphology in Optically Thin Circumstellar Gas Disks
Dust Migration and Morphology in Optically Thin Circumstellar Gas Disks
We analyze the dynamics of gas-dust coupling in the presence of stellar radiation pressure in circumstellar disks, which are in a transitional stage between the gas-dominated, optically thick, primordial nebulae, and the dust-dominated, optically thin Vega-type disks. Dust grains undergo radial migration, either leaving the disk owing to a strong …