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| Paper: |
Radiative Transfer Modeling of Passive Circumstellar Disks: Application to HR 4796A |
| Volume: |
294, Scientific Frontiers in Research on Extrasolar Planets |
| Page: |
265 |
| Authors: |
Currie, T.; Semenov, D.; Henning, Th.; Furlan, E.; Herter, T. |
| Abstract: |
We present a radiative transfer model which computes the spectral energy distribution of a passive, irradiated circumstellar disk, assuming the grains are in radiative equilibrium. Dependence on the radial density profile, grain temperature estimation, and optical depth profiles on the output SED are discussed. The best fit model for HR 4796A has a minimum and maximum spherical grain size of 2.2 and 1000 microns respectively, a size distribution slightly steeper than the "classical" -3.5 MRN power law, grains composed of silicates, trolite, ice, and organics and a peak radial density of 1.0×10-17 g cm-3 at 70 AU, yielding a disk mass of roughly 2 Earth masses. |
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