Origins of the extragalactic background at 1mm from a combined analysis of the AzTEC and MAMBO data in GOODS-N

dc.creatorDavid Hughes
dc.date2011
dc.date.accessioned2023-07-25T16:24:29Z
dc.date.available2023-07-25T16:24:29Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1870
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7807061
dc.descriptionWe 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 1.16mm map (σ ∼ 0.5 mJy) by combining the AzTEC 1.1mm and MAMBO 1.2mm 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 1.16mm flux densities of individually undetected galaxies with 24 μm flux densities >25 μJy, we resolve 31–45 per cent of the 1.16mm 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 1.16mm background comes from galaxies at z > 1.3.
dc.formatapplication/pdf
dc.languageeng
dc.publisherMonthly Notices of the Royal Astronomical Society
dc.relationcitation:Penner, Kyle., et al., (2011), Origins of the extragalactic background at 1mm from a combined analysis of the AzTEC and MAMBO data in GOODS-N, Monthly Notices of the Royal Astronomical Society, Vol. 410(4):2749–2759
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/Inspec/Methods: statistical
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: evolution
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: high-redshift
dc.subjectinfo:eu-repo/classification/Inspec/Submillimetre: diffuse background
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/21
dc.subjectinfo:eu-repo/classification/cti/21
dc.titleOrigins of the extragalactic background at 1mm from a combined analysis of the AzTEC and MAMBO data in GOODS-N
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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