An, Fang XiaSimpson, J. M.Smail, Ian2021-02-082021-02-082020An, F. X. et al. (2020). An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2–COSMOS field. Monthly Notices of the Royal Astronomical Society, 495(3), 3409–34301365-2966https://doi.org/10.1093/mnras/staa1345http://hdl.handle.net/10566/5857ABSTRACT We present an ALMA study of the ∼180 brightest sources in the SCUBA-2 850-μm map of the COSMOS field from the S2COSMOS survey, as a pilot study for AS2COSMOS – a full survey of the ∼1000 sources in this field. In this pilot study, we have obtained 870-μm continuum maps of an essentially complete sample of the brightest 182 sub-millimetre sources (⁠S850μm> 6.2 mJy) in COSMOS. Our ALMA maps detect 260 sub-millimetre galaxies (SMGs) spanning a range in flux density of S870μm = 0.7–19.2 mJy.enGalaxies: evolutionGalaxies: formationGalaxies: high-redshiftSub-millimetre: galaxiesArticle