HRS • We now have Herschel photometry; James et al only had IRAS & SCUBA, and so could not constrain dust temperature. • We have integrated (and normalised) ISM metallicites from drift- scan spectroscopy • We have integrated CO maps; they only had central pointings. • James et al did not consider the effect of oxygen depletion on their metallicites – we do. • James et al did not account for Helium or gas-phase metals in their ISM masses – we do. Chris Clark
model based upon laboratory observations of astrophysical minerals (see papers by A Jones, N Ysard). • SKIRT – Radiative transfer modelling suite that can fit a dust model to galaxy observations in 3D (see papers by M Baes, P De Camps, S Verstoken). • A hierarchical Bayesian SED fitting toolkit that can be used to model both galaxies both globally and pixel-by-pixel (see papers by F Galliano). • A database of multiwavelength imagery and photometry database for all 876 nearby galaxies observed by Herschel for which V<3000 km/s and D25<1’ (see upcoming paper by me).