86 Herschel sources SED model parameters (Rowan-Robinson+, 2010)

Rowan-Robinson, M.; Roseboom, I. G.; Vaccari, M.; Amblard, A.; Arumugam, V.; Auld, R.; Aussel, H.; Babbedge, T.; Blain, A.; Bock, J. et al.
Bibliographical reference

VizieR On-line Data Catalog: J/MNRAS/409/2. Originally published in: 2010MNRAS.409....2R

Advertised on:
8
2011
Description
We present spectral energy distributions (SEDs) for 86 Herschel sources detected at 5σ at 250, 350 and 500um in the HerMES SWIRE-Lockman field. We explore whether existing models for starbursts, quiescent star-forming galaxies and active galactic nucleus dust tori are able to model the full range of SEDs measured with Herschel. We find that while many galaxies (~56 per cent) are well fitted with the templates used to fit IRAS, Infrared Space Observatory (ISO) and Spitzer sources, for about half the galaxies two new templates are required: quiescent ('cirrus') models with colder (10-20K) dust and a young starburst model with higher optical depth than Arp 220. Predictions of submillimetre fluxes based on model fits to 4.5-24um data agree rather poorly with the observed fluxes, but the agreement is better for fits to 4.5-70um data. Herschel galaxies detected at 500um tend to be those with the highest dust masses. (1 data file).