Ian Smail's Outputs (526)

Two sub-millimetre bright protoclusters bounding the epoch of peak star-formation activity (2019)
Journal Article
Lacaille, K. M., Chapman, S. C., Smail, I., Steidel, C., Blain, A., Geach, J., Golob, A., Gurwell, M., Ivison, R., Reddy, N., & Sawicki, M. (2019). Two sub-millimetre bright protoclusters bounding the epoch of peak star-formation activity. Monthly Notices of the Royal Astronomical Society, 488(2), 1790-1812. https://doi.org/10.1093/mnras/stz1742

We present James Clerk Maxwell Telescope Submillimetre Common-User Bolometer Array 2 (SCUBA-2) 850 & 450 μm observations (σ850 ∼ 0.5 mJy, σ450 ∼ 5 mJy) of the HS1549+19 and HS1700+64 survey fields containing two of the largest known galaxy over-densi... Read More about Two sub-millimetre bright protoclusters bounding the epoch of peak star-formation activity.

The nature of sub-millimeter and highly star-forming galaxies in the eagle simulation (2019)
Journal Article
McAlpine, S., Smail, I., Bower, R. G., Swinbank, A., Trayford, J. W., Theuns, T., Baes, M., Camps, P., Crain, R. A., & Schaye, J. (2019). The nature of sub-millimeter and highly star-forming galaxies in the eagle simulation. Monthly Notices of the Royal Astronomical Society, 488(2), 2440-2454. https://doi.org/10.1093/mnras/stz1692

We exploit eagle, a cosmological hydrodynamical simulation, to reproduce the selection of the observed sub-millimeter (submm) galaxy population by selecting the model galaxies at z ≥ 1 with mock submm fluxes S850µm ≥ 1 mJy. We find a reasonable agree... Read More about The nature of sub-millimeter and highly star-forming galaxies in the eagle simulation.

The kiloparsec-scale gas kinematics in two star-forming galaxies at z ∼ 1.47 seen with ALMA and VLT-SINFONI (2019)
Journal Article
Molina, J., Ibar, E., Smail, I., Swinbank, A., Villard, E., Escala, A., Sobral, D., & Hughes, T. (2019). The kiloparsec-scale gas kinematics in two star-forming galaxies at z ∼ 1.47 seen with ALMA and VLT-SINFONI. Monthly Notices of the Royal Astronomical Society, 487(4), 4856-4869. https://doi.org/10.1093/mnras/stz1643

We present Atacama Large Millimeter/submillimeter Array (ALMA) CO(J = 2 − 1) observations of two main-sequence star-forming galaxies at z ∼ 1.47 taken from the High-Z Emission Line Survey (HiZELS). These two systems have been previously reported to b... Read More about The kiloparsec-scale gas kinematics in two star-forming galaxies at z ∼ 1.47 seen with ALMA and VLT-SINFONI.

An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Source catalogue and properties (2019)
Journal Article
Stach, S. M., Dudzevičiūtė, U., Smail, I., Swinbank, A., Geach, J., Simpson, J., An, F. X., Almaini, O., Arumugam, V., Blain, A., Chapman, S., Chen, C.-C., Conselice, C., Cooke, E., Coppin, K., da Cunha, E., Dunlop, J., Farrah, D., Gullberg, B., Hodge, J., …Werf, P. V. D. (2019). An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Source catalogue and properties. Monthly Notices of the Royal Astronomical Society, 487(4), 4648-4668. https://doi.org/10.1093/mnras/stz1536

We present the catalogue and basic properties of sources in AS2UDS, an 870-μm continuum survey with the Atacama Large Millimetre/sub-millimetre Array (ALMA) of 716 single-dish sub-millimetre sources detected in the UKIDSS/UDS field by the SCUBA-2 Cos... Read More about An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field: Source catalogue and properties.

ALMA Reveals Potential Evidence for Spiral Arms, Bars, and Rings in High-redshift Submillimeter Galaxies (2019)
Journal Article
Hodge, J., Smail, I., Walter, F., Cunha, E. D., Swinbank, A., Rybak, M., Venemans, B., Brandt, W., Rivera, G. C., Chapman, S., Chen, C.-C., Cox, P., Dannerbauer, H., Decarli, R., Greve, T., Knudsen, K., Menten, K., Schinnerer, E., Simpson, J., Werf, P. V. D., …Weiss, A. (2019). ALMA Reveals Potential Evidence for Spiral Arms, Bars, and Rings in High-redshift Submillimeter Galaxies. Astrophysical Journal, 876(2), Article 130. https://doi.org/10.3847/1538-4357/ab1846

We present subkiloparsec-scale mapping of the 870 μm ALMA continuum emission in six luminous (L IR ~ 5 × 1012 L ⊙) submillimeter galaxies (SMGs) from the ALESS survey of the Extended Chandra Deep Field South. Our high-fidelity 0farcs07-resolution ima... Read More about ALMA Reveals Potential Evidence for Spiral Arms, Bars, and Rings in High-redshift Submillimeter Galaxies.

The energetics of starburst-driven outflows at z ∼ 1 from KMOS (2019)
Journal Article
Swinbank, A., Harrison, C., Tiley, A., Johnson, H., Smail, I., Stott, J., Best, P., Bower, R., Bureau, M., Bunker, A., Cirasuolo, M., Jarvis, M., Magdis, G., Sharples, R., & Sobral, D. (2019). The energetics of starburst-driven outflows at z ∼ 1 from KMOS. Monthly Notices of the Royal Astronomical Society, 487(1), 381-393. https://doi.org/10.1093/mnras/stz1275

We present an analysis of the gas outflow energetics from KMOS observations of 529 main-sequence star-forming galaxies at z 1 using broad, underlying Hα and forbid- den lines of [Nii] and [Sii]. Based on the stacked spectra for a sample with median s... Read More about The energetics of starburst-driven outflows at z ∼ 1 from KMOS.

Strong Far-ultraviolet Fields Drive the [C ii]/Far-infrared Deficit in z ∼ 3 Dusty, Star-forming Galaxies (2019)
Journal Article
Rybak, M., Rivera, G. C., Hodge, J., Smail, I., Walter, F., van der Werf, P., da Cunha, E., Chen, C.-C., Dannerbauer, H., Ivison, R., Karim, A., Simpson, J., Swinbank, A., & Wardlow, J. (2019). Strong Far-ultraviolet Fields Drive the [C ii]/Far-infrared Deficit in z ∼ 3 Dusty, Star-forming Galaxies. Astrophysical Journal, 876(2), Article 112. https://doi.org/10.3847/1538-4357/ab0e0f

We present 0farcs15 (1 kpc) resolution ALMA observations of the [C ii] 157.74 μm line and rest-frame 160 μm continuum emission in two z ~ 3 dusty, star-forming galaxies—ALESS 49.1 and ALESS 57.1, combined with resolved CO (3–2) observations. In both... Read More about Strong Far-ultraviolet Fields Drive the [C ii]/Far-infrared Deficit in z ∼ 3 Dusty, Star-forming Galaxies.

The submillimetre view of massive clusters at z ∼ 0.8–1.6 (2019)
Journal Article
Cooke, E., Smail, I., Stach, S., Swinbank, A., Bower, R., Chen, C., …Thomson, A. (2019). The submillimetre view of massive clusters at z ∼ 0.8–1.6. Monthly Notices of the Royal Astronomical Society, 486(3), 3047-3058. https://doi.org/10.1093/mnras/stz955

We analyse 850 μm continuum observations of eight massive X-ray detected galaxy clusters at z ∼ 0.8–1.6 taken with SCUBA-2 on the James Clerk Maxwell Telescope. We find an average overdensity of 850 μm-selected sources of a factor of 4 ± 2 per cluste... Read More about The submillimetre view of massive clusters at z ∼ 0.8–1.6.

The SCUBA-2 Web Survey: I. Observations of CO(3–2) in hyper-luminous QSO fields (2019)
Journal Article
Hill, R., Chapman, S. C., Scott, D., Smail, I., Steidel, C. C., Krips, M., Babul, A., Berg, T., Bertoldi, F., Gao, Y., Lacaille, K., Matsuda, Y., Ross, C., Rudie, G., & Trainor, R. (2019). The SCUBA-2 Web Survey: I. Observations of CO(3–2) in hyper-luminous QSO fields. Monthly Notices of the Royal Astronomical Society, 485(1), 753-769. https://doi.org/10.1093/mnras/stz429

A primary goal of the SCUBA-2 Web survey is to perform tomography of the early inter-galactic medium by studying systems containing some of the brightest quasi-stellar objects (QSOs; 2.5  <  z  <  3.0) and nearby submillimetre galaxies. As a first st... Read More about The SCUBA-2 Web Survey: I. Observations of CO(3–2) in hyper-luminous QSO fields.

The Shapes of the Rotation Curves of Star-forming Galaxies Over the Last ≈ 10 Gyr (2019)
Journal Article
Tiley, A. L., Swinbank, A., Harrison, C., Smail, I., Turner, O., Schaller, M., Stott, J., Sobral, D., Theuns, T., Sharples, R., Gillman, S., Bower, R., Bunker, A., Best, P., Richard, J., Bacon, R., Bureau, M., Cirasuolo, M., & Magdis, G. (2019). The Shapes of the Rotation Curves of Star-forming Galaxies Over the Last ≈ 10 Gyr. Monthly Notices of the Royal Astronomical Society, 485(1), 934-960. https://doi.org/10.1093/mnras/stz428

We analyse maps of the spatially-resolved nebular emission of ≈1500 star-forming galaxies at z ≈ 0.6–2.2 from deep KMOS and MUSE observations to measure the average shape of their rotation curves. We use these to test claims for declining rotation cu... Read More about The Shapes of the Rotation Curves of Star-forming Galaxies Over the Last ≈ 10 Gyr.

COLDz: Shape of the CO Luminosity Function at High Redshift and the Cold Gas History of the Universe (2019)
Journal Article
Riechers, D. A., Pavesi, R., Sharon, C. E., Hodge, J. A., Decarli, R., Walter, F., Carilli, C. L., Aravena, M., da Cunha, E., Daddi, E., Dickinson, M., Smail, I., Capak, P. L., Ivison, R. J., Sargent, M., Scoville, N. Z., & Wagg, J. (2019). COLDz: Shape of the CO Luminosity Function at High Redshift and the Cold Gas History of the Universe. Astrophysical Journal, 872(1), Article 7. https://doi.org/10.3847/1538-4357/aafc27

We report the first detailed measurement of the shape of the CO luminosity function at high redshift, based on >320 hr of the NSF's Karl G. Jansky Very Large Array (VLA) observations over an area of ~60 arcmin2 taken as part of the CO Luminosity Dens... Read More about COLDz: Shape of the CO Luminosity Function at High Redshift and the Cold Gas History of the Universe.

Overdensity of submillimeter galaxies around the z ≃ 2.3 MAMMOTH-1 nebula (2018)
Journal Article
Arrigoni Battaia, F., Chen, C.-C., Fumagalli, M., Cai, Z., Calistro Rivera, G., Xu, J., Smail, I., Prochaska, J., Yang, Y., & De Breuck, C. (2018). Overdensity of submillimeter galaxies around the z ≃ 2.3 MAMMOTH-1 nebula. Astronomy & Astrophysics, 620, Article A202. https://doi.org/10.1051/0004-6361/201834195

In the hierarchical model of structure formation, giant elliptical galaxies form through merging processes within the highest density peaks known as protoclusters. While high-redshift radio galaxies usually pinpoint the location of these environments... Read More about Overdensity of submillimeter galaxies around the z ≃ 2.3 MAMMOTH-1 nebula.

KROSS-SAMI: A Direct IFS Comparison of the Tully-Fisher Relation Across 8 Gyr Since z ≈ 1 (2018)
Journal Article
Tiley, A., Bureau, M., Cortese, L., Harrison, C., Johnson, H., Stott, J., …Richards, S. (2019). KROSS-SAMI: A Direct IFS Comparison of the Tully-Fisher Relation Across 8 Gyr Since z ≈ 1. Monthly Notices of the Royal Astronomical Society, 482(2), 2166-2188. https://doi.org/10.1093/mnras/sty2794

We construct Tully–Fisher relations (TFRs), from large samples of galaxies with spatially resolved H α emission maps from the K-band Multi-Object Spectrograph (KMOS) Redshift One Spectroscopic Survey (KROSS) at z ≈ 1. We compare these to data from th... Read More about KROSS-SAMI: A Direct IFS Comparison of the Tully-Fisher Relation Across 8 Gyr Since z ≈ 1.

ALMACAL V: absorption-selected galaxies with evidence for excited ISMs (2018)
Journal Article
Klitsch, A., Zwaan, M., Péroux, C., Smail, I., Oteo, I., Popping, G., Swinbank, A., Ivison, R., & Biggs, A. (2018). ALMACAL V: absorption-selected galaxies with evidence for excited ISMs. Monthly Notices of the Royal Astronomical Society: Letters, 482(1), L65-L69. https://doi.org/10.1093/mnrasl/sly187

Gas-rich galaxies are selected efficiently via quasar absorption lines. Recently, a new perspective on such absorption-selected systems has opened up by studying the molecular gas content of absorber host galaxies using ALMA CO emission line observat... Read More about ALMACAL V: absorption-selected galaxies with evidence for excited ISMs.

SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). II. Structural Properties and Near-infrared Morphologies of Faint Submillimeter Galaxies (2018)
Journal Article
Chang, Y., Ferraro, N., Wang, W., Lim, C., Toba, Y., An, F., …Urquhart, S. (2018). SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). II. Structural Properties and Near-infrared Morphologies of Faint Submillimeter Galaxies. Astrophysical Journal, 865(2), Article 103. https://doi.org/10.3847/1538-4357/aadd18

We present structural parameters and morphological properties of faint 450 μm selected submillimeter galaxies (SMGs) from the JCMT Large Program, STUDIES, in the COSMOS-CANDELS region. Their properties are compared to an 850 μm selected and a matched... Read More about SCUBA-2 Ultra Deep Imaging EAO Survey (STUDIES). II. Structural Properties and Near-infrared Morphologies of Faint Submillimeter Galaxies.

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.

ALMA deep field in SSA22: Survey design and source catalog of a 20 arcmin2 survey at 1.1 mm (2018)
Journal Article
Umehata, H., Hatsukade, B., Smail, I., Alexander, D. M., Ivison, R. J., Matsuda, Y., …Ikarashi, S. (2018). ALMA deep field in SSA22: Survey design and source catalog of a 20 arcmin2 survey at 1.1 mm. Publications of Astronomical Society of Japan, 70(4), Article 65. https://doi.org/10.1093/pasj/psy065

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.