Reverb.type
Whether to perform reverberation mapping. Reverberation mapping tracks the path of photons emitted in the simulation as they travel through the geometry, assuming that any delays from recombination etc. are negligible and all delays are due to light travel time. For each final spectrum, all contributing photons are output to a ‘.delay_dump’ file that can then be processed using our ‘tfpy’ Python (no relation) library.
- Type
Enumerator
- Values
- none
Off
- photon
Each photon is assigned an initial path based on its distance from the central source (assuming emission in the disk and wind is correlated with emission from the CO).
- wind
CO photons are assigned paths as in Photon mode, disk photons are assigned paths as set by the reverb.disk_type parameter. Photons generated in the wind are assigned a path based on the distribution of paths of photons that have contributed to continuum absorption in that cell.
- matom
This works as wind mode, but for a number of specified macro-atom lines paths are tracked for those photons who cause a deexcitation into a given line. When a photon is emitted in one of those lines, the path is drawn from that specific distribution. This distribution is build up not just from the last cycle of the simulation, but from all cycles after the wind achieves >90% convergence. This is necessary as some lines are poorly-sampled.
This mode gives pretty much identical results to wind mode, but at least we made it to check rather than just assuming it would be fine.
This requires that Line_transfer is either
macro_atomsormacro_atoms_thermal_trapping
- File
- Child(ren)