期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 409, 期 1, 页码 2-11出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1365-2966.2010.17041.x
关键词
galaxies: evolution; galaxies: starburst; galaxies: star formation; cosmology: observations; infrared: galaxies
资金
- CSA (Canada)
- NAOC (China)
- CEA (France)
- ASI (Italy)
- MCINN (Spain)
- SNSB (Sweden)
- STFC (UK)
- NASA (USA)
- CNES (France)
- CNRS (France)
- STFC [ST/H00260X/1, ST/F007019/1, ST/F002858/1, ST/H001913/1, ST/H002456/1, PP/C002229/1, ST/H004165/1, ST/H001530/1, ST/H004157/1, PP/E005306/1, ST/G002630/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H004157/1, ST/H001913/1, ST/H004165/1, ST/F002858/1, ST/H00260X/1, PP/E005306/1, ST/G002630/1, ST/F007019/1, PP/C002229/1, ST/H002456/1, PP/E001181/1] Funding Source: researchfish
- UK Space Agency [ST/G003874/1, ST/H00002X/1] Funding Source: researchfish
We present spectral energy distributions (SEDs) for 68 Herschel sources detected at 5 sigma at 250, 350 and 500 mu m 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 (similar to 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 (10-20 K) dust and a young starburst model with higher optical depth than Arp 220. Predictions of submillimetre fluxes based on model fits to 4.5-24 mu m data agree rather poorly with the observed fluxes, but the agreement is better for fits to 4.5-70 mu m data. Herschel galaxies detected at 500 mu m tend to be those with the highest dust masses.
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