The AZTEC/SMA interferometric imaging survey of submillimeter-selected high-redshift galaxies

dc.creatorDavid Hughes
dc.creatorITZIAR ARETXAGA MENDEZ
dc.date2009
dc.date.accessioned2023-07-25T16:23:20Z
dc.date.available2023-07-25T16:23:20Z
dc.identifierhttp://inaoe.repositorioinstitucional.mx/jspui/handle/1009/1272
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7806469
dc.descriptionWe present results from a continuing interferometric survey of high-redshift submillimeter galaxies with the Submillimeter Array, including high-resolution (beam size ∼ 2 arcsec) imaging of eight additional AzTEC 1.1mm selected sources in the COSMOS Field, for which we obtain six reliable (peak S/N > 5 or peak S/N > 4 with multiwavelength counterparts within the beam) and two moderate significance (peak S/N > 4) detections. When combined with previous detections, this yields an unbiased sample of millimeter-selected SMGs with complete interferometric followup. With this sample in hand, we (1) empirically confirm the radio-submillimeter association, (2) examine the submillimeter morphology – including the nature of submillimeter galaxies with multiple radio counterparts and constraints on the physical scale of the far infrared – of the sample, and (3) find additional evidence for a population of extremely luminous, radio-dim submillimeter galaxies that peaks at higher redshift than previous, radio-selected samples. In particular, the presence of such a population of high-redshift sources has important consequences for models of galaxy formation – which struggle to account for such objects even under liberal assumptions – and dust production models given the limited time since the Big Bang.
dc.formatapplication/pdf
dc.languageeng
dc.publisherThe Astrophysical Journal
dc.relationcitation:Younger, Joshua D., et al., (2009). The AZTEC/SMA interferometric imaging survey of submillimeter-selected high-redshift galaxies, The Astrophysical Journal. Vol.704(1):1-11
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.subjectinfo:eu-repo/classification/Inspec/Cosmology: observations
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: evolution
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: high-redshift
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies:starburst
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: submillimeter
dc.subjectinfo:eu-repo/classification/Inspec/Galaxies: formation
dc.subjectinfo:eu-repo/classification/cti/1
dc.subjectinfo:eu-repo/classification/cti/21
dc.subjectinfo:eu-repo/classification/cti/2105
dc.subjectinfo:eu-repo/classification/cti/2105
dc.titleThe AZTEC/SMA interferometric imaging survey of submillimeter-selected high-redshift galaxies
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/acceptedVersion
dc.audiencestudents
dc.audienceresearchers
dc.audiencegeneralPublic


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