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An Analysis of ALMA Deep Fields and the Perceived Dearth of High-z Galaxies

Casey, Caitlin M.; Hodge, Jacqueline; Zavala, Jorge A.; Spilker, Justin; da Cunha, Elisabete; Staguhn, Johannes; Finkelstein, Steven L.; Drew, Patrick


Deep, pencil-beam surveys from ALMA at 1.1–1.3 mm have uncovered an apparent absence of high-redshift dusty galaxies, with existing redshift distributions peaking around z ~ 1.5–2.5. This has led to a perceived dearth of dusty systems at z ≳ 4 and the conclusion, according to some models, that the early universe was relatively dust-poor. In this paper, we extend the backward-evolution galaxy model described by Casey et al. to the ALMA regime (in depth and area) and determine that the measured...[Show more]

CollectionsANU Research Publications
Date published: 2018-07-25
Type: Journal article
Source: The Astrophysical Journal
DOI: 10.3847/1538-4357/aacd11


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