New ProDiMo code development paper 30.11.2023

has been accepted by A&A

Woitke at al. 2023, see link to ADS

We implemented a number of new theories and improvements in our thermo-chemical disc modelling code ProDiMo. These improvements include a new escape probability method for spectral lines, which is relevant for the calculation of line heating and cooling rates, a new treatment of dust settling, and a new concept to apply UV molecular shielding factors to photorates within a 2D disc geometry. We show that these measures altogether result in significant changes to our predicted MIR molecular line spectra. The code improvements allow us to get closer to the observed JWST spectra and to the molecular properties derived from slab-model fits, such as column densities, molecular emission temperatures, and line-emitting areas.