dc.identifier.citation | Penner , K , Pope , A , Chapin , E L , Greve , T R , Bertoldi , F , Brodwin , M , Chary , R , Conselice , C J , Coppin , K , Giavalisco , M , Hughes , D H , Ivison , R J , Perera , T , Scott , D , Scott , K & Wilson , G 2011 , ' Origins of the extragalactic background at 1 mm from a combined analysis of the AzTEC and MAMBO data in GOODS-N ' , Monthly Notices of the Royal Astronomical Society , vol. 410 , no. 4 , pp. 2749-2759 . https://doi.org/10.1111/j.1365-2966.2010.17650.x | |
dc.description.abstract | We present a study of the cosmic infrared background, which is a measure of the dust-obscured activity in all galaxies in the Universe. We venture to isolate the galaxies responsible for the background at 1 mm; with spectroscopic and photometric redshifts we constrain the redshift distribution of these galaxies. We create a deep 1.16 mm map (σ∼ 0.5 mJy) by combining the AzTEC 1.1 mm and MAMBO 1.2 mm data sets in the Great Observatories Origins Deep Survey North (GOODS-N) region. This combined map contains 41 secure detections, 13 of which are new. By averaging the 1.16 mm flux densities of individually undetected galaxies with 24 μm flux densities >25 μJy, we resolve 31-45 per cent of the 1.16 mm background. Repeating our analysis on the SCUBA 850 μm map, we resolve a higher percentage (40-64 per cent) of the 850 μm background. A majority of the background resolved (attributed to individual galaxies) at both wavelengths comes from galaxies at z > 1.3. If the ratio of the resolved submillimetre to millimetre background is applied to a reasonable scenario for the origins of the unresolved submillimetre background, 60-88 per cent of the total 1.16 mm background comes from galaxies at z > 1.3. | en |