The DustI Radiative Transfer, Yeah! Model aka The DIRTY Model

• The DIRTY model is a code for computing the radiative transfer of photons through dust including the reemission of the energy absorbed by the dust.
• The radiative transfer is done using Monte Carlo techniques allowing for arbitrary distributions of photon emitters (stars, gas, accretion disks, dust) and arbitratry distributions of the dust (scatterers and absorbers).
• The dust reemission is calculated using analytic techniques including equilibrium thermal emission (large particles), non-equilibrium thermal emission (small particles), and aromatic feature emission (PAH molecules?). The dust reemission is done self-consistantly with the radiative transfer which allows for self absorption by the dust.

The DIRTY model is fully described in:

• The DIRTY Model. I. Monte Carlo Radiative Transfer Through Dust
  K. D. Gordon, K. A. Misselt, A. N. Witt, & G. C. Clayton 2001, ApJ, 551, 269
• The DIRTY Model. II. Self-Consistent Treatment of Dust Heating and Emission in a 3-D Radiative Transfer Code
  K. A. Misselt, K. D. Gordon, G. C. Clayton, & M. J. Wolff 2001, ApJ, 551, 277

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Copyright © 2003 Karl D. Gordon All Rights Reserved