JINGLE IV Dust in the local Universe

In this work, we analyse how the dust and metal content varies with specific gas mass (M_HI_/M_*_) across a diverse sample of 423 nearby galaxies. The observed trends are interpreted with a set of Dust and Element evolUtion modelS (DEUS) - including stellar dust production, grain growth, and dust destruction - within a Bayesian framework to enable a rigorous search of the multidimensional parameter space.

We find that these scaling laws for galaxies with -1.0~<logM_HI_/M_*_~<0 can be reproduced using closed-box models with high fractions (37-89 per cent) of supernova dust surviving a reverse shock, relatively low grain growth efficiencies ({epsilon}=30-40), and long dust lifetimes (1-2Gyr). The models have present-day dust masses with similar contributions from stellar sources (50-80 per cent) and grain growth (20-50 per cent).