Faint submillimeter galaxies identified through their optical/near-infrared colors. i. spatial clustering and halo masses
Chian-Chou Chen,Ian Smail,A. M. Swinbank,J. M. Simpson,Omar Almaini,Christopher J. Conselice,Will G. Hartley,Will G. Hartley,Alice Mortlock,Alice Mortlock,Chris Simpson,Aaron Wilkinson +11 more
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In this paper, the authors identify a sample of 2938 OIRTC-selected galaxies, dubbed Triple Color Galaxies (TCGs), in the UKIDSS-UDS field.Abstract:
The properties of submillimeter galaxies (SMGs) that are fainter than the confusion limit of blank-field single-dish surveys (S850 2 mJy) are poorly constrained. Using a newly developed color selection technique, Optical-Infrared Triple Color (OIRTC), that has been shown to successfully select such faint SMGs, we identify a sample of 2938 OIRTC-selected galaxies, dubbed Triple Color Galaxies (TCGs), in the UKIDSS-UDS field. We show that these galaxies have a median 850 μm flux of S850 = 0.96 +/- 0.04 mJy (equivalent to a star formation rate SFR ~60–100 M yr−1 based on spectral energy distribution fitting), representing the first large sample of faint SMGs that bridges the gap between bright SMGs and normal star-forming galaxies in S850 and LIR. We assess the basic properties of TCGs and their relationship with other galaxy populations at z ~ 2. We measure the two-point autocorrelation function for this population and derive a typical halo mass of log10(Mhalo) = -12.9+0.2-0.3, 12.7+0.1,-0.2, and 12.9+0.2,-0,3 h-1 M at z = 1–2, 2–3, and 3–5, respectively. Together with the bright SMGs (S850 >/~ 2 mJy) and a comparison sample of less far-infrared luminous star-forming galaxies, we find a lack of dependence between spatial clustering and S850 (or SFR), suggesting that the difference between these populations may lie in their local galactic environment. Lastly, on the scale of ~8–17 kpc at 1 < z < 5 we find a tentative enhancement of the clustering of TCGs over the comparison star-forming galaxies, suggesting that some faint SMGs are physically associated pairs, perhaps reflecting a merging origin in their triggering.read more
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Journal ArticleDOI
An ALMA survey of the SCUBA-2 CLS UDS field: physical properties of 707 sub-millimetre galaxies
U. Dudzevičiūtė,Ian Smail,A. M. Swinbank,S. M. Stach,Omar Almaini,E. da Cunha,E. da Cunha,Fang Xia An,V. Arumugam,Jack Birkin,Andrew Blain,Scott Chapman,Chian-Chou Chen,C. J. Conselice,Kristen Coppin,James Dunlop,Duncan Farrah,James E. Geach,Bitten Gullberg,W. G. Hartley,Jacqueline Hodge,Rob Ivison,Rob Ivison,David T. Maltby,Douglas Scott,Chris Simpson,James Simpson,Alasdair Thomson,Fabian Walter,Julie Wardlow,Axel Weiss,P. van der Werf +31 more
TL;DR: In this paper, the physical properties of a large, homogeneously selected sample of ALMA-located sub-mm galaxies (SMGs) detected in the SCUBA-2 CLS 850-$\mu$m map of the UKIDSS/UDS field were analyzed.
Journal ArticleDOI
High-redshift star formation in the Atacama large millimetre/submillimetre array era.
TL;DR: The main advances ALMA has helped bring about in understanding of the dust and gas properties of high-redshift (z≳1) star-forming galaxies during these first 9 years of its science operations are reviewed, and the interesting questions that may be answered by ALMA in the years to come are highlighted.
Journal ArticleDOI
An ALMA survey of submillimeter galaxies in the COSMOS field: Multiwavelength counterparts and redshift distribution
Drew Brisbin,Oskari Miettinen,Manuel Aravena,Vernesa Smolčić,Ivan Delvecchio,Chunyan Jiang,Chunyan Jiang,Chunyan Jiang,Benjamin Magnelli,M. Albrecht,Alejandra Arancibia,Herve Aussel,N. Baran,Frank Bertoldi,Matthieu Béthermin,Matthieu Béthermin,Peter Capak,Caitlin M. Casey,Francesca Civano,Christopher C. Hayward,Christopher C. Hayward,Olivier Ilbert,Alexander Karim,Olivier Le Fevre,Stefano Marchesi,H. J. McCracken,Felipe Navarrete,Mladen Novak,Dominik A. Riechers,Nelson Padilla,Mara Salvato,Kimberly S. Scott,Eva Schinnerer,Kartik Sheth,Lidia Tasca +34 more
TL;DR: In this article, the authors carried out targeted ALMA observations of 129 fields in the COSMOS region at 1.25 mm, detecting 152 galaxies at S/N ≥ 5 with an average continuum RMS of 150 μJy.
Journal ArticleDOI
An ALMA survey of submillimetre galaxies in the COSMOS field: Physical properties derived from energy balance spectral energy distribution modelling
Oskari Miettinen,Ivan Delvecchio,Vernesa Smolčić,Manuel Aravena,Drew Brisbin,Alexander Karim,Benjamin Magnelli,Mladen Novak,Eva Schinnerer,M. Albrecht,Herve Aussel,Frank Bertoldi,Peter Capak,Caitlin M. Casey,Christopher C. Hayward,Olivier Ilbert,Huib Intema,Chunyan Jiang,Olivier Le Fevre,H. J. McCracken,Alejandra Arancibia,Felipe Navarrete,Nelson Padilla,Dominik Riechers,Mara Salvato,Kimberly S. Scott,Kartik Sheth,Lidia Tasca +27 more
TL;DR: In this paper, the authors used MAGPHYS to fit the panchromatic (ultraviolet to radio) SEDs of 124 of the target SMGs, 19.4% of which are spectroscopically confirmed.
Journal ArticleDOI
High-redshift star formation in the ALMA era
TL;DR: The Atacama Large Millimetre/submillimetre Array (ALMA) is currently in the process of transforming our view of star-forming galaxies in the distant universe as discussed by the authors.
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