On the Submillimeter Opacity of Protoplanetary Disks

@inproceedings{Draine2005OnTS,
  title={On the Submillimeter Opacity of Protoplanetary Disks},
  author={Bruce T. Draine},
  year={2005}
}
Solid particles with the composition of interstellar dust and power-law size distribution dn/da ∝ a −p for a ≤ a max with a max 3λ and 3 < p < 4 will have submm opacity spectral index β(λ) ≡ d ln κ/d ln ν ≈ (p − 3)β ism , where β ism ≈ 1.7 is the opacity spectral index of interstellar dust material in the Rayleigh limit. For the power-law index p ≈ 3.5 that characterizes interstellar dust, and that appears likely for particles growing by agglomeration in protoplanetary disks, grain growth to… CONTINUE READING
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