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AzTEC Millimetre Survey of the COSMOS Field: I. Data Reduction and Source Catalogue

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dc.contributor.authorScott, K. S.
dc.contributor.authorAustermann, J. E.
dc.contributor.authorPerera, T. A.
dc.contributor.authorWilson, G. W.
dc.contributor.authorAretxaga, I.
dc.contributor.authorBock, J. J.
dc.contributor.authorHughes, D. H.
dc.contributor.authorKang, Y.
dc.contributor.authorKim, S.
dc.contributor.authorMauskopf, P. D.
dc.contributor.authorSanders, D. B.
dc.contributor.authorScoville, N.
dc.contributor.authorYun, Min
dc.contributor.departmentUniversity of Massachusetts - Amherst
dc.contributor.departmentUniversity of Massachusetts - Amherst
dc.contributor.departmentUniversity of Massachusetts - Amherst
dc.contributor.departmentUniversity of Massachusetts - Amherst
dc.contributor.department2Instituto Nacional de Astrofisica
dc.contributor.departmentCalifornia Institute of Technology
dc.contributor.department2Instituto Nacional de Astrofisica
dc.contributor.departmentSejong University
dc.contributor.departmentSejong University
dc.contributor.departmentCardiff University
dc.contributor.departmentUniversity of Hawii
dc.contributor.departmentCalifornia Institute of Technology
dc.contributor.departmentUniversity of Massachusetts - Amherst
dc.date2023-09-22T20:55:41.000
dc.date.accessioned2024-04-26T08:27:15Z
dc.date.available2024-04-26T08:27:15Z
dc.date.issued2008-01-01
dc.description<p>This is the pre-published version harvested from ArXiv. The published version is located at <a href="http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2008.12989.x/abstract">http://onlinelibrary.wiley.com/doi/10.1111/j.1365-2966.2008.12989.x/abstract</a></p>
dc.description.abstractWe present a 1.1 mm wavelength imaging survey covering 0.3 deg2 in the COSMOS field. These data, obtained with the AzTEC continuum camera on the James Clerk Maxwell Telescope, were centred on a prominent large-scale structure overdensity which includes a rich X-ray cluster at z≈ 0.73. A total of 50 mm-galaxy candidates, with a significance ranging from 3.5 to 8.5σ, are extracted from the central 0.15 deg2 area which has a uniform sensitivity of ∼1.3 mJy beam−1. 16 sources are detected with S/N ≥ 4.5, where the expected false-detection rate is zero, of which a surprisingly large number (9) have intrinsic (deboosted) fluxes ≥5 mJy at 1.1 mm. Assuming the emission is dominated by radiation from dust, heated by a massive population of young, optically obscured stars, then these bright AzTEC sources have far-infrared luminosities >6 × 1012 L⊙ and star formation rates >1100 M⊙ yr−1. Two of these nine bright AzTEC sources are found towards the extreme peripheral region of the X-ray cluster, whilst the remainder are distributed across the larger scale overdensity. We describe the AzTEC data reduction pipeline, the source-extraction algorithm, and the characterization of the source catalogue, including the completeness, flux deboosting correction, false-detection rate and the source positional uncertainty, through an extensive set of Monte Carlo simulations. We conclude with a preliminary comparison, via a stacked analysis, of the overlapping MIPS 24-μm data and radio data with this AzTEC map of the COSMOS field.
dc.description.pages2225-2238
dc.identifier.doihttps://doi.org/10.1111/j.1365-2966.2008.12989.x
dc.identifier.urihttps://hdl.handle.net/20.500.14394/2917
dc.relation.ispartofMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1000&amp;context=astro_faculty_pubs&amp;unstamped=1
dc.source.issue4
dc.source.issue385
dc.source.statuspublished
dc.subjectgalaxies:high-redshift
dc.subjectgalaxies:starburst
dc.subjectsubmillimetre
dc.subjectAstrophysics and Astronomy
dc.titleAzTEC Millimetre Survey of the COSMOS Field: I. Data Reduction and Source Catalogue
dc.typearticle
dc.typearticle
digcom.contributor.authorScott, K. S.
digcom.contributor.authorAustermann, J. E.
digcom.contributor.authorPerera, T. A.
digcom.contributor.authorWilson, G. W.
digcom.contributor.authorAretxaga, I.
digcom.contributor.authorBock, J. J.
digcom.contributor.authorHughes, D. H.
digcom.contributor.authorKang, Y.
digcom.contributor.authorKim, S.
digcom.contributor.authorMauskopf, P. D.
digcom.contributor.authorSanders, D. B.
digcom.contributor.authorScoville, N.
digcom.contributor.authorisAuthorOfPublication|email:myun@astro.umass.edu|institution:University of Massachusetts - Amherst|Yun, Min
digcom.identifierastro_faculty_pubs/23
digcom.identifier.contextkey1238240
digcom.identifier.submissionpathastro_faculty_pubs/23
dspace.entity.typePublication
relation.isAuthorOfPublication36d012cf-6d65-42c1-91b8-fbec638580d7
relation.isAuthorOfPublication.latestForDiscovery36d012cf-6d65-42c1-91b8-fbec638580d7
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