Browsing University of Hertfordshire by Author "Chen, Chian-Chou"

Now showing items 1-14 of 14

    • An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2 COSMOS field 

      Simpson, James; Smail, Ian; Dudzeviciute, U.; Matsuda, Y.; Hsieh, B. -C.; Swinbank, A. M.; Stach, S. M.; An, Fang Xia; Birkin, J. E.; Ao, Y.; Bunker, A. J.; Chapman, S. C.; Chen, Chian-Chou; Coppin, K. E. K.; Ikarashi, S.; Ivison, R. J.; Mitsuhashi, I.; Saito, T.; Umehata, H.; Wang, R.; Zhao, Y. (2020-07-01)
      We present an ALMA study of the ~180 brightest sources in the SCUBA-2 map of the COSMOS field from the S2COSMOS survey, as a pilot study for AS2COSMOS - a full survey of the ~1,000 sources in this field. In this pilot we ...

    • An ALMA survey of the S2CLS UDS field: optically invisible submillimetre galaxies 

      Smail, Ian; Dudzevičiūtė, U.; Stach, S. M.; Almaini, O.; Birkin, J. E.; Chapman, S. C.; Chen, Chian-Chou; Geach, J. E.; Gullberg, B.; Hodge, J. A.; Ikarashi, S.; Ivison, R. J.; Scott, D.; Simpson, Chris; Swinbank, A. M.; Thomson, A. P.; Walter, F.; Wardlow, J. L.; Werf, P. van der (2021-04-01)
      We analyse a robust sample of 30 near-infrared-faint (KAB > 25.3, 5σ) submillimetre galaxies (SMGs) selected from a 0.96 deg2 field to investigate their properties and the cause of their faintness in optical/near-infrared ...

    • An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : Dust attenuation in high-redshift Lyman break Galaxies 

      Koprowski, M. P.; Coppin, K. E. K.; Geach, J. E.; Dudzeviciute, U.; Smail, Ian; Almaini, O.; An, Fangxia; Blain, A. W.; Chapman, S. C.; Chen, Chian-Chou; Conselice, C. J.; Dunlop, J. S.; Farrah, D.; Gullberg, B.; Hartley, W.; Ivison, R. J.; Karska, A.; Maltby, D.; Michałowski, M. J.; Pope, A.; Salim, S.; Scott, D.; Swinbank, A. M.; Wardlow, J. L.; Werf, P. P. van der; Whitaker, K. E. (2020-03)
      We analyse 870um Atacama Large Millimetre Array (ALMA) dust continuum detections of 41 canonically-selected z~3 Lyman-break galaxies (LBGs), as well as 209 ALMA-undetected LBGs, in follow-up of SCUBA-2 mapping of the UKIDSS ...

    • An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : Identifying candidate z~4.5 [CII] emitters 

      Cooke, E. A.; Smail, Ian; Swinbank, A. M.; Stach, S. M.; An, FangXia; Gullberg, B.; Almaini, O.; Simpson, C. J.; Wardlow, J. L.; Blain, A. W.; Chapman, S. C.; Chen, Chian-Chou; Conselice, C. J.; Coppin, K. E. K.; Farrah, D.; Maltby, D. T.; Michalowski, M. J.; Scott, D.; Thomson, A. P.; Werf, P. van der (2018-07-10)
      We report the results of a search for serendipitous [C ii] 157.74 μm emitters at z ≃ 4.4-4.7 using the Atacama Large Millimeter/submillimeter Array (ALMA). The search exploits the AS2UDS continuum survey, which covers ∼50 ...

    • An ALMA survey of the SCUBA-2 Cosmology Legacy SurveyUKIDSS/UDS Field : Halo Masses for Submillimetre Galaxies 

      Stach, S. M.; Smail, I.; Amvrosiadis, A.; Swinbank, A. M.; Dudzevičiūtė, U.; Geach, J. E.; Almaini, O.; Birkin, J. E.; Chen, Chian-Chou; Conselice, C. J.; Cooke, E. A.; Coppin, K. E. K.; Dunlop, J. S.; Farrah, D.; Ikarashi, S.; Ivison, R. J.; Wardlow, J. L. (2021-03-10)
      We present an analysis of the spatial clustering of a large sample of high-resolution, interferometically identified, submillimetre galaxies (SMGs). We measure the projected cross-correlation function of ~350 SMGs in the ...

    • The case for a 'sub-millimeter SDSS' : a 3D map of galaxy evolution to z~10 

      Geach, James E.; Banerji, Manda; Bertoldi, Frank; Bethermin, Matthieu; Casey, Caitlin M.; Chen, Chian-Chou; Clements, David L.; Cicone, Claudia; Combes, Francoise; Conselice, Christopher; Cooray, Asantha; Coppin, Kristen; Daddi, Emanuele; Dannerbauer, Helmut; Dave, Romeel; Doherty, Matthew; Dunlop, James S.; Edge, Alastair; Farrah, Duncan; Franco, Maximilien; Fuller, Gary; Garratt, Tracy; Gear, Walter; Greve, Thomas R.; Hatziminaoglou, Evanthia; Hayward, Christopher C.; Ivison, Rob J.; Kawabe, Ryohei; Klaassen, Pamela; Knudsen, Kirsten K.; Kohno, Kotaro; Koprowski, Maciej; Lagos, Claudia D. P.; Magdis, Georgios E.; Magnelli, Benjamin; McGee, Sean L.; Michalowski, Michal; Mroczkowski, Tony; Noroozian, Omid; Oliver, Seb; Riechers, Dominik; Rujopakarn, Wiphu; Scott, Douglas; Serjeant, Stephen; Smith, Matthew W. L.; Swinbank, Mark; Tamura, Yoichi; Werf, Paul van der; Kampen, Eelco van; Verma, Aprajita; Vieira, Joaquin; Wagg, Jeff; Walter, Fabian; Wang, Lingyu; Wootten, Al; Yun, Min S. (2019-05-31)
      The Sloan Digital Sky Survey (SDSS) was revolutionary because of the extraordinary breadth and ambition of its optical imaging and spectroscopy. We argue that a 'sub-millimeter SDSS' - a sensitive large-area imaging+spectroscopic ...

    • A machine-learning method for identifying multi-wavelength counterparts of submillimeter galaxies : training and testing using AS2UDS and ALESS 

      An, FangXia; Stach, S. M.; Smail, Ian; Swinbank, A. M.; Almaini, O.; Hartley, W.; Maltby, D. T.; Ivison, R. J.; Arumugam, V.; Wardlow, J. L.; Cooke, E. A.; Gullberg, B.; Chen, Chian-Chou; Geach, J. E.; Scott, D.; Dunlop, J. S.; Farrah, D.; Werf, P. van der; Blain, A. W.; Conselice, C.; Michałowski, M. J.; Chapman, S. C.; Coppin, K. E. K. (2018-07-27)
      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 ...

    • Multi-wavelength properties of radio and machine-learning identified counterparts to submillimeter sources in S2COSMOS 

      An, FangXia; Simpson, J. M.; Smail, Ian; Swinbank, A. M.; Ma, Cong; Liu, Daizhong; Lang, P.; Schinnerer, E.; Karim, A.; Magnelli, B.; Leslie, S.; Bertoldi, F.; Chen, Chian-Chou; Geach, J. E.; Matsuda, Y.; Stach, S. M.; Wardlow, J. L.; Gullberg, B.; Ivison, R. J.; Ao, Y.; Coogan, R. T.; Thomson, A. P.; Chapman, S. C.; Wang, R.; Wang, Wei-Hao; Yang, Y.; Asquith, R.; Bourne, N.; Coppin, K.; Hine, N. K.; Ho, L. C.; Hwang, H. S.; Kato, Y.; Lacaille, K.; Lewis, A. J. R.; Oteo, I.; Scholtz, J.; Sawicki, M.; Smith, D. (2019-11-20)
      We identify multi-wavelength counterparts to 1,147 submillimeter sources from the S2COSMOS SCUBA-2 survey of the COSMOS field by employing a recently developed radio$+$machine-learning method trained on a large sample of ...

    • Observational constraints on the physical nature of submillimetre source multiplicity : chance projections are common 

      Hayward, Christopher C.; Chapman, Scott C.; Steidel, Charles C.; Golob, Anneya; Casey, Caitlin M.; Smith, Daniel J. B.; Zitrin, Adi; Blain, Andrew W.; Bremer, Malcolm N.; Chen, Chian-Chou; Coppin, Kristen E. K.; Farrah, Duncan; Ibar, Eduardo; Michałowski, Michał J.; Sawicki, Marcin; Scott, Douglas; Werf, Paul van der; Fazio, Giovanni G.; Geach, James E.; Gurwell, Mark; Petitpas, Glen; Wilner, David J. (2018-05-11)
      Interferometric observations have demonstrated that a significant fraction of single-dish submillimetre (submm) sources are blends of multiple submm galaxies (SMGs), but the nature of this multiplicity, i.e. whether the ...

    • Resolving the ISM at the peak of cosmic star formation with ALMA - The distribution of CO and dust continuum in z~2.5 sub-millimetre galaxies 

      Rivera, Gabriela Calistro; Hodge, J. A.; Smail, Ian; Swinbank, A. M.; Weiß, A.; Wardlow, J. L.; Walter, F.; Rybak, M.; Chen, Chian-Chou; Brandt, W. N.; Coppin, K.; Cunha, E. da; Dannerbauer, H.; Greve, T. R.; Karim, A.; Knudsen, K. K.; Schinnerer, E.; Venemans, B.; Werf, P. P. van der (2018-08-10)
      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 (01–06). The ...

    • Revealing the Stellar Mass and Dust Distributions of Submillimeter Galaxies at Redshift 2 

      Lang, P.; Schinnerer, E.; Smail, Ian; Dudzevičiūtė, U.; Swinbank, A. M.; Liu, Daizhong; Leslie, S. K.; Almaini, O.; An, Fang Xia; Bertoldi, F.; Blain, A. W.; Chapman, S. C.; Chen, Chian-Chou; Conselice, C.; Cooke, E. A.; Coppin, K. E. K.; Dunlop, J. S.; Farrah, D.; Fudamoto, Y.; Geach, J. E.; Gullberg, B.; Harrington, K. C.; Hodge, J. A.; Ivison, R. J.; Jiménez-Andrade, E. F.; Magnelli, B.; Michałowski, M. J.; Oesch, P.; Scott, D.; Smolčić, V.; Stach, S. M.; Toft, S.; Vardoulaki, E.; Wardlow, J. L.; Weiss, A.; Werf, P. van der (2019-07-03)
      We combine high-resolution ALMA and HST/CANDELS observations of 20 submillimeter galaxies (SMGs), predominantly from the AS2UDS survey at z ≃ 2, with bright rest-frame optical counterparts () to investigate the resolved ...

    • The SCUBA-2 Cosmology Legacy Survey : ALMA resolves the bright-end of the sub-millimeter number counts 

      Simpson, James; Smail, Ian; Swinbank, Mark; Chapman, Scott; Geach, James; Ivison, Rob; Thomson, Alasdair; Aretxaga, Itziar; Blain, Andrew; Cowley, Will; Chen, Chian-Chou; Coppin, Kristen; Dunlop, Jim; Edge, Alastair; Farrah, Duncan; Ibar, Edo; Karim, Alex; Knudsen, Kirsten; Meijerink, Rowin; Michalowski, Michal; Scott, Douglas; Spanns, Marco; Werf, Paul van der (2015-07-10)
      We present high-resolution 870-um ALMA continuum maps of 30 bright sub-millimeter sources in the UKIDSS UDS field. These sources are selected from deep, 1-square degrees 850-um maps from the SCUBA--2 Cosmology Legacy Survey, ...

    • The SCUBA-2 Cosmology Legacy Survey : The EGS deep field I - Deep number counts and the redshift distribution of the recovered Cosmic Infrared Background at 450 and 850 um 

      Zavala, J. A.; Aretxaga, I.; Geach, J. E.; Birkinshaw, M.; Chapin, E.; Chapman, S.; Chen, Chian-Chou; Clements, D. L.; Dunlop, J. S.; Farrah, D.; Ivison, R. J.; Jenness, T.; Michałowski, M. J.; Robson, E. I.; Scott, Douglas; Simpson, J.; Spaans, M.; Werf, P. van der (2017-01-21)
      We present deep observations at 450 um and 850 um in the Extended Groth Strip field taken with the SCUBA-2 camera mounted on the James Clerk Maxwell Telescope as part of the deep SCUBA-2 Cosmology Legacy Survey (S2CLS), ...

    • The SCUBA-2 Cosmology Legacy Survey: Multi-wavelength Properties of ALMA-identified Submillimeter Galaxies in UKIDSS-UDS 

      Simpson, J. M.; Smail, Ian; Swinbank, A. M.; Ivison, R. J.; Dunlop, J. S.; Geach, J. E.; Almaini, O.; Arumugam, V.; Bremer, M. N.; Chen, Chian-Chou; Conselice, C.; Coppin, K. E. K.; Farrah, D.; Ibar, E.; Hartley, W. G.; Ma, C. J.; Michalowski, M. J.; Spaans, M.; Thomson, A. P.; Werf, P. P. van der (2017-04-13)
      We present a multi-wavelength analysis of 52 sub-millimeter galaxies (SMGs), identified using ALMA 870$\mu$m continuum imaging in a pilot program to precisely locate bright SCUBA2-selected sub-mm sources in the UKIDSS Ultra ...