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Table 3

Overview of the discretization parameters and heuristics used by participating codes.

Code Grain size bins Temperature Heuristic to select or determine Heuristic to transition from
(Sil/Gra/PAH) bins temperature grid stochastic to equilibrium regime

SKIRT 15/15/15 20/625/1250 one of 3 grids based on width of P(T) based on width of P(T)
DIRTY 121/121/28 501000 iterative range & resolution adjustment based on τabs/τrad
TRADING 20/20/8 80 fixed predefined grid fixed at atrans = 0.05 μm
CRT 15/15/15 128 one of 6 grids based on based on
MCFOST 63/62/24 300 fixed predefined grid based on τabs/τrad
DART-Ray 63/62/24 200 iterative range adjustment based on σT of Gaussian approx.

Notes. Refer to Sects. 5.2 through 5.7 for a more extensive description. Also, Fig. 9 further supplements the information in the last column of this table.

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