期刊
ASTRONOMY & ASTROPHYSICS
卷 518, 期 -, 页码 -出版社
EDP SCIENCES S A
DOI: 10.1051/0004-6361/201014586
关键词
submillimeter: galaxies; Galaxy: evolution; galaxies: high-redshift
资金
- NASA
- Alfred P. Sloan Foundation
- National Science Foundation
- US Department of Energy
- Japanese Monbukagakusho
- Max Planck Society
- Higher Education Funding Council for England
- STFC [ST/G001871/1, ST/G002533/1, ST/H002391/1, PP/E001149/1, ST/G002630/1, ST/G001987/1, ST/H008578/1, ST/G002622/1, ST/H001530/1, ST/H00131X/1, PP/D000963/1, ST/I003088/1, ST/G001979/1, ST/H004254/1, ST/F002858/1, ST/F00298X/1, ST/I506861/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/H008578/1, ST/G002630/1, ST/H004254/1, ST/I506861/1, ST/G001979/1, ST/H002391/1, ST/F00298X/1, ST/G002622/1, ST/G001987/1, PP/D000963/1, PP/E001149/1, ST/I003088/1, ST/G001871/1, PP/E001181/1, ST/H00131X/1, ST/F002858/1, ST/G002533/1] Funding Source: researchfish
- UK Space Agency [ST/G003874/1] Funding Source: researchfish
We present colour-colour diagrams of detected sources in the Herschel-ATLAS science demonstration field from 100 to 500 mu m using both PACS and SPIRE. We fit isothermal modified black bodies to the spectral energy distribution (SED) to extract the dust temperature of sources with counterparts in Galaxy And Mass Assembly (GAMA) or SDSS surveys with either a spectroscopic or a photometric redshift. For a subsample of 330 sources detected in at least three FIR bands with a significance greater than 3 sigma, we find an average dust temperature of (28 +/- 8) K. For sources with no known redshift, we populate the colour-colour diagram with a large number of SEDs generated with a broad range of dust temperatures and emissivity parameters, and compare to colours of observed sources to establish the redshift distribution of this sample. For another subsample of 1686 sources with fluxes above 35 mJy at 350 mu m and detected at 250 and 500 mu m with a significance greater than 3s, we find an average redshift of 2.2 +/- 0.6.
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