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The CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array (2018)
Journal Article
Pavesi, R., Sharon, C. E., Riechers, D. A., Hodge, J. A., Decarli, R., Walter, F., Carilli, C. L., Daddi, E., Smail, I., Dickinson, M., Ivison, R. J., Sargent, M., Cunha, E. D., Aravena, M., Darling, J., Smolčić, V., Scoville, N. Z., Capak, P. L., & Wagg, J. (2018). The CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array. Astrophysical Journal, 864(1), Article 49. https://doi.org/10.3847/1538-4357/aacb79

We describe the CO Luminosity Density at High-z (COLDz) survey, the first spectral line deep field targeting CO(1–0) emission from galaxies at z = 1.95–2.85 and CO(2–1) at z = 4.91–6.70. The main goal of COLDz is to constrain the cosmic density of mo... Read More about The CO Luminosity Density at High-z (COLDz) Survey: A Sensitive, Large-area Blind Search for Low-J CO Emission from Cold Gas in the Early Universe with the Karl G. Jansky Very Large Array.

Resolving the ISM at the Peak of Cosmic Star Formation with ALMA: The Distribution of CO and Dust Continuum in z ∼ 2.5 Submillimeter Galaxies (2018)
Journal Article
Rivera, G. C., Hodge, J., Smail, I., Swinbank, A., Weiss, A., Wardlow, J., …Werf, P. V. D. (2018). Resolving the ISM at the Peak of Cosmic Star Formation with ALMA: The Distribution of CO and Dust Continuum in z ∼ 2.5 Submillimeter Galaxies. Astrophysical Journal, 863(1), Article 56. https://doi.org/10.3847/1538-4357/aacffa

We use Atacama Large Millimeter Array (ALMA) observations of four submillimeter galaxies (SMGs) at z ~ 2–3 to investigate the spatially resolved properties of the interstellar medium (ISM) at scales of 1–5 kpc (0farcs1–0farcs6). The velocity fields o... Read More about Resolving the ISM at the Peak of Cosmic Star Formation with ALMA: The Distribution of CO and Dust Continuum in z ∼ 2.5 Submillimeter Galaxies.

Far-infrared Herschel SPIRE spectroscopy of lensed starbursts reveals physical conditions of ionized gas (2018)
Journal Article
Zhang, Z.-Y., Ivison, R., George, R., Zhao, Y., Dunne, L., Herrera-Camus, R., Lewis, A., Liu, D., Naylor, D., Oteo, I., Riechers, D., Smail, I., Yang, C., Eales, S., Hopwood, R., Maddox, S., Omont, A., & van der Werf, P. (2018). Far-infrared Herschel SPIRE spectroscopy of lensed starbursts reveals physical conditions of ionized gas. Monthly Notices of the Royal Astronomical Society, 481(1), 59-97. https://doi.org/10.1093/mnras/sty2082

The most intensively star-forming galaxies are extremely luminous at far-infrared (FIR) wavelengths, highly obscured at optical and ultraviolet wavelengths, and lie at z ≥ 1–3. We present a programme of FIR spectroscopic observations with the SPIRE F... Read More about Far-infrared Herschel SPIRE spectroscopy of lensed starbursts reveals physical conditions of ionized gas.

A Machine-learning Method for Identifying Multiwavelength Counterparts of Submillimeter Galaxies: Training and Testing Using AS2UDS and ALESS (2018)
Journal Article
An, F. X., Stach, S., Smail, I., Swinbank, A., Almaini, O., Simpson, C., Hartley, W., Maltby, D., Ivison, R., Arumugam, V., Wardlow, J., Cooke, E., Gullberg, B., Thomson, A., Chen, C.-C., Simpson, J., Geach, J., Scott, D., Dunlop, J., Farrah, D., …Coppin, K. (2018). A Machine-learning Method for Identifying Multiwavelength Counterparts of Submillimeter Galaxies: Training and Testing Using AS2UDS and ALESS. Astrophysical Journal, 862(2), Article 101. https://doi.org/10.3847/1538-4357/aacdaa

We describe the application of supervised machine-learning algorithms to identify the likely multiwavelength counterparts to submillimeter sources detected in panoramic, single-dish submillimeter surveys. As a training set, we employ a sample of 695... Read More about A Machine-learning Method for Identifying Multiwavelength Counterparts of Submillimeter Galaxies: Training and Testing Using AS2UDS and ALESS.

An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Identifying Candidate z ∼ 4.5 [C II] Emitters (2018)
Journal Article
Cooke, E., Smail, I., Swinbank, A., Stach, S., An, F. X., Gullberg, B., …Werf, P. V. D. (2018). An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Identifying Candidate z ∼ 4.5 [C II] Emitters. Astrophysical Journal, 861(2), Article 100. https://doi.org/10.3847/1538-4357/aac6ba

We report the results of a search for serendipitous [C ii] 157.74 μm emitters at z sime 4.4–4.7 using the Atacama Large Millimeter/submillimeter Array (ALMA). The search exploits the AS2UDS continuum survey, which covers ~50 arcmin2 of the sky toward... Read More about An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Identifying Candidate z ∼ 4.5 [C II] Emitters.

An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Number Counts of Submillimeter Galaxies (2018)
Journal Article
Stach, S. M., Smail, I., Swinbank, A., Simpson, J., Geach, J., An, F. X., Almaini, O., Arumugam, V., Blain, A., Chapman, S., Chen, C.-C., Conselice, C., Cooke, E., Coppin, K., Dunlop, J., Farrah, D., Gullberg, B., Hartley, W., Ivison, R., Maltby, D., …Werf, P. V. D. (2018). An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Number Counts of Submillimeter Galaxies. Astrophysical Journal, 860(2), Article 161. https://doi.org/10.3847/1538-4357/aac5e5

We report the first results of AS2UDS, an 870 μm continuum survey with the Atacama Large Millimeter/Submillimeter Array (ALMA) of a total area of ~50 arcmin2 comprising a complete sample of 716 submillimeter sources drawn from the SCUBA-2 Cosmology L... Read More about An ALMA Survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS Field: Number Counts of Submillimeter Galaxies.

The Discovery of a New Massive Molecular Gas Component Associated with the Submillimeter Galaxy SMM J02399-0136 (2018)
Journal Article
Frayer, D., Maddalena, R., Ivison, R., Smail, I., Blain, A., & Vanden Bout, P. (2018). The Discovery of a New Massive Molecular Gas Component Associated with the Submillimeter Galaxy SMM J02399-0136. Astrophysical Journal, 860(2), Article 87. https://doi.org/10.3847/1538-4357/aac49a

We present CO(1–0), CO(3–2), and CO(7–6) observations using the Green Bank Telescope (GBT) and the Atacama Large Millimeter Array (ALMA) of the z = 2.8 submillimeter galaxy SMM J02399−0136. This was the first submillimeter-selected galaxy discovered... Read More about The Discovery of a New Massive Molecular Gas Component Associated with the Submillimeter Galaxy SMM J02399-0136.

An ALMA survey of CO in submillimetre galaxies: companions, triggering, and the environment in blended sources (2018)
Journal Article
Wardlow, J., Simpson, J., Smail, I., Swinbank, A., Blain, A., Brandt, W., Chapman, S., Chen, C.-C., Cooke, E., Dannerbauer, H., Gullberg, B., Hodge, J., Ivison, R., Knudsen, K., Scott, D., Thomson, A., Weiß, A., & van der Werf, P. (2018). An ALMA survey of CO in submillimetre galaxies: companions, triggering, and the environment in blended sources. Monthly Notices of the Royal Astronomical Society, 479(3), 3879-3891. https://doi.org/10.1093/mnras/sty1526

We present ALMA observations of the mid-J 12CO emission from six single-dish selected 870-μm sources in the Extended Chandra Deep Field-South and UKIDSS Ultra-Deep Survey fields. These six single-dish submillimetre sources were selected based on prev... Read More about An ALMA survey of CO in submillimetre galaxies: companions, triggering, and the environment in blended sources.

The Dust and [C ii] Morphologies of Redshift ∼4.5 Sub-millimeter Galaxies at ∼200 pc Resolution: The Absence of Large Clumps in the Interstellar Medium at High-redshift (2018)
Journal Article
Gullberg, B., Swinbank, A., Smail, I., Biggs, A., Bertoldi, F., Breuck, C. D., …Weiss, A. (2018). The Dust and [C ii] Morphologies of Redshift ∼4.5 Sub-millimeter Galaxies at ∼200 pc Resolution: The Absence of Large Clumps in the Interstellar Medium at High-redshift. Astrophysical Journal, 859(1), Article 12. https://doi.org/10.3847/1538-4357/aabe8c

We present deep, high-resolution (0 03, 200 pc) ALMA Band 7 observations covering the dust continuum and [C II] λ157.7 μm emission in four z ∼ 4.4–4.8 sub-millimeter galaxies (SMGs) selected from the ALESS and AS2UDS surveys. The data show that the r... Read More about The Dust and [C ii] Morphologies of Redshift ∼4.5 Sub-millimeter Galaxies at ∼200 pc Resolution: The Absence of Large Clumps in the Interstellar Medium at High-redshift.