Browsing by Author "Karim, A."

Now showing items 1-20 of 23

    • ALMA observations of a z ≈ 3.1 protocluster : Star formation from active galactic nuclei and Lyman-alpha blobs in an overdense environment 

      Alexander, D. M.; Simpson, J. M.; Harrison, C. M.; Mullaney, J. R.; Smail, I.; Geach, J. E.; Hickox, R. C.; Karim, A.; Kubo, M.; Lehmer, B. D.; Matsuda, Y.; Rosario, D. J.; Stanley, F.; Swinbank, A. M.; Umehata, H.; Yamada, T.; Hine, Nancy (2016-09-21)
      We exploit Atacama Large Interferometer Array (ALMA) 870 μm observations to measure the star formation rates (SFRs) of eight X-ray detected active galactic nuclei (AGNs) in a z ≈ 3.1 protocluster, four of which reside in ...

    • An alma survey of sub-millimeter galaxies in the extended Chandra deep field south : Sub-millimeter properties of color-selected galaxies 

      Decarli, R.; Smail, I.; Walter, F.; Swinbank, A.M.; Chapman, S.; Coppin, Kristen; Cox, P.; Dannerbauer, H.; Greve, T.R.; Hodge, J. A.; Ivison, Rob J.; Karim, A.; Knudsen, K.K.; Lindroos, L.; Rix, H-W.; Schinnerer, E.; Simpson, J.M.; van der Werf, P.; Weiss, A. (2014-01-10)
      We study the sub-millimeter properties of color-selected galaxies via a stacking analysis applied for the first time to interferometric data at sub-millimeter wavelengths. We base our study on 344 GHz ALMA continuum ...

    • An ALMA survey of sub-millimetre galaxies in the extended chandra deep field south : The far-infrared properties of SMGs 

      Swinbank, A. M.; Simpson, J. M.; Smail, Ian; Harrison, C. M.; Hodge, J. A.; Karim, A.; Walter, F.; Alexander, D. M.; Brandt, W. N.; de Breuck, C.; da Cunha, E.; Chapman, S. C.; Coppin, Kristen; Danielson, A. L. R.; Dannerbauer, H.; Decarli, R.; Greve, T.R.; Ivison, R. J.; Knudsen, K. K.; Lagos, Claudia del P.; Schinnerer, E.; Thomson, A. P.; Wardlow, J. L.; Weiß, A.; van der Werf, P. (2014-02-21)
      We exploit Atacama Large Millimeter Array (ALMA) 870 μm observations of sub-millimetre sources in the Extended Chandra Deep Field South to investigate the far-infrared properties of high-redshift sub-millimetre galaxies ...

    • An ALMA Survey of Submilleter Galaxies in the Extended Chandra Deep Field-South : The AGN Fraction and X-Ray Properties of Submillimeter Galaxies 

      Wang, S.X.; Brandt, W. N.; Luo, B.; Smail, I.; Alexander, D.M.; Danielson, A. L. R.; Hodge, J. A.; Karim, A.; Lehmer, B.D.; Simpson, James; Swinbank, A.M.; Walter, Fabian; Wardlow, Julie; Xue, Y. Q.; Chapman, S.; Coppin, Kristen; Dannerbauer, H.; De Breuck, Carlos; Menten, K. M.; van der Werf, P. (2013)
      The large gas and dust reservoirs of submillimeter galaxies (SMGs) could potentially provide ample fuel to trigger an active galactic nucleus (AGN), but previous studies of the AGN fraction in SMGs have been controversial ...

    • An ALMA survey of submillimeter galaxies in the extended chandra deep field south : Near-infrared morphologies and stellar sizes 

      Chen, Chian Chou; Smail, Ian; Swinbank, A.M.; Simpson, J. M.; Ma, Cheng Jiun; Alexander, D.M.; Biggs, A. D.; Brandt, W.N.; Chapman, S.C.; Coppin, Kristen; Danielson, A. L. R.; Dannerbauer, H.; Edge, A. C.; Greve, T.R.; Ivison, R. J.; Karim, A.; Menten, Karl M.; Schinnerer, E.; Walter, F.; Wardlow, J. L.; Weiß, A.; Van Der Werf, P. P. (2015-02-01)
      We analyze Hubble Space Telescope WFC3/H160-band observations of a sample of 48 Atacama Large Millimeter/submillimeter Array detected submillimeter galaxies (SMGs) in the Extended Chandra Deep Field South field, to study ...

    • An ALMA survey of submillimeter galaxies in the Extended Chandra Deep Field South : Source catalog and multiplicity 

      Hodge, J. A.; Karim, A.; Smail, I.; Swinbank, A. M.; Walter, F.; Biggs, A. D.; Ivison, Rob J.; Weiss, A.; Alexander, D. M.; Bertoldi, F.; Brandt, W. N.; Chapman, S.C.; Coppin, Kristen; Cox, P.; Danielson, A. L. R.; Dannerbauer, H.; De Breuck, C.; Decarli, R.; Edge, A. C.; Greve, T. R.; Knudsen, K. K.; Menten, K.M.; Rix, H-W.; Schinnerer, E.; Simpson, J.M.; Wardlow, J. L.; van der Werf, P. (2013)
      We present an Atacama Large Millimeter/submillimeter Array (ALMA) Cycle 0 survey of 126 submillimeter sources from the LABOCA ECDFS Submillimeter Survey (LESS). Our 870 micron survey with ALMA (ALESS) has produced maps ~3X ...

    • An ALMA Survey of Submillimeter Galaxies in the Extended Chandra Deep Field South : Spectroscopic Redshifts 

      Danielson, A. L. R.; Swinbank, A.~M.; Smail, Ian; Simpson, J. M.; M. Casey, C.; Chapman, S.~C.; Cunha, Elisabete da; Hodge, J. A.; Walter, F.; Wardlow, J. L.; Alexander, D. M.; Brandt, W.N.; De Breuck, C.; Coppin, K. E.K.; Dannerbauer, H.; Dickinson, M.; Edge, A. C.; Gawiser, E.; Ivison, R. J.; Karim, A.; Kovacs, A.; Lutz, D.; Menten, K.~M.; Schinnerer, E.; Weiß, A.; van der Werf, P. (2017-05-10)
      We present spectroscopic redshifts of S870 μm ≳ 2 mJy submillimeter galaxies (SMGs), which have been identified from the ALMA follow-up observations of 870 μm detected sources in the Extended Chandra Deep Field South (the ...

    • An ALMA survey of submillimetre galaxies in the Extended Chandra Deep Field-South : Detection of [Cii] at z = 4.4 

      Swinbank, A.M.; Karim, A.; Smail, I.; Hodge, J.; Walter, F.; Bertoldi, F.; Biggs, A.D.; De Breuck, C.; Chapman, S.C.; Coppin, Kristen; Cox, P.; Danielson, A .L. R.; Dannerbauer, H.; Ivison, R.J.; Greve, T.R.; Knudsen, K.K.; Menten, K. M.; Simpson, J.M.; Schinnerer, E.; Wardlow, J. L.; Weiss, A.; van der Werf, P. (2012-12-01)
      We present Atacama Large Millimeter Array (ALMA) 870-μm (345-GHz) observations of two submillimetre galaxies (SMGs) drawn from an ALMA study of the 126 submillimetre sources from the LABOCA Extended Chandra Deep Field-South ...

    • A direct calibration of the IRX-β relation in Lyman-break Galaxies at z=3-5 

      Koprowski, M. P.; Coppin, K. E. K.; Geach, J. E.; McLure, R. J.; Almaini, O.; Blain, A. W.; Bremer, M.; Bourne, N.; Chapman, S. C.; Conselice, C. J.; Dunlop, J. S.; Farrah, D.; Hartley, W.; Karim, A.; Knudsen, K. K.; Michałowski, M. J.; Scott, D.; Simpson, C.; Smith, D. J. B.; Werf, P. P. van der (2018-10)
      We use a sample of 4209 Lyman-break galaxies (LBGs) at z ≃ 3, 4, and 5 in the UKIRT Infrared Deep Sky Survey Ultra Deep Survey field to investigate the relationship between the observed slope of the stellar continuum ...

    • The dust and [CII] morphologies of redshift ~4.5 sub-millimeter galaxies at ~200pc resolution : The Absence of Large Clumps in the Interstellar Medium at High-redshift 

      Gullberg, B.; Swinbank, A. M.; Smail, I.; Biggs, A. D.; Bertoldi, F.; Breuck, C. De; Chapman, S. C.; Chen, C. -C.; Cooke, E. A.; Coppin, K. E. K.; Cox, P.; Dannerbauer, H.; Dunlop, J. S.; Edge, A. C.; Farrah, D.; Geach, J. E.; Greve, T. R.; Hodge, J.; Ibar, E.; Ivison, R. J.; Karim, A.; Schinnerer, E.; Scott, D.; Simpson, J. M.; Stach, S. M.; Thomson, A. P.; Werf, P. van der; Walter, F.; Wardlow, J. L.; Weiss, A. (2018-05-17)
      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 ...

    • Estimating sizes of faint, distant galaxies in the submillimetre regime 

      Lindroos, L.; Knudsen, K.; Fan, L; Conway, J; Coppin, Kristen; Decarli, R; Drouart, G.; hodge, J.A.; Karim, A.; Simpson, J.M.; Wardlow, J. (2016-10-21)
      We measure the sizes of redshift ˜2 star-forming galaxies by stacking data from the Atacama Large Millimeter/submillimeter Array (ALMA). We use a uv-stacking algorithm in combination with model fitting in the uv-domain and ...

    • Herschel-PACS observations of [O I]63 um towards submillimetre galaxies at z~1 

      Coppin, Kristen; Danielson, A. L. R.; Geach, J. E.; Hodge, J. A.; Swinbank, A.M.; Wardlow, J. L.; Bertoldi, F.; Biggs, A.; Brandt, W.N.; Caselli, P.; Chapman, S. C.; Dannerbauer, H.; Dunlop, James S.; Greve, T.R.; Hamann, F.; Ivison, R. J.; Karim, A.; Knudsen, K. K.; Menten, K. M.; Schinnerer, E.; Smail, Ian; Spaans, M.; Walter, F.; Webb, T. M. A.; van der Werf, P. P. (2012)
      We present Herschel-PACS spectroscopy of the [O I]63 um far-infrared cooling line from a sample of six unlensed and spectroscopically confirmed 870 um selected submillimetre (submm) galaxies (SMGs) at 1.1 <z <1.6 from the ...

    • High radio-frequency properties and variability of brightest cluster galaxies 

      Hogan, M.~T.; Edge, A.~C.; Geach, J.~E.; Grainge, K.~J.~B.; Hlavacek-Larrondo, J.; Hovatta, T.; Karim, A.; McNamara, B.~R.; Rumsey, C.; Russell, H.~R.; Salomé, P.; Aller, H.~D.; Aller, M.~F.; Benford, D.~J.; Fabian, A.~C.; Readhead, A.~C.~S.; Sadler, E.~M.; Saunders, R.~D.~E. (2015-10-21)
      We consider the high radio-frequency (15–353 GHz) properties and variability of 35 brightest cluster galaxies (BCGs). These are the most core-dominated sources drawn from a parent sample of more than 700 X-ray selected ...

    • KILOPARSEC-SCALE DUST DISKS IN HIGH-REDSHIFT LUMINOUS SUBMILLIMETER GALAXIES 

      Hodge, Jackie; Swinbank, Mark; Simpson, James; Smail, Ian; Walter, F.; Alexander, D.M.; Bertoldi, Frank; Biggs, Andy; Brandt, Niel; Chapman, S.C.; Coppin, Kristen; Chen, Chian Chou; Cox, Pierre; Dannerbauer, Helmut; Edge, A. C.; Greve, Thomas; J. Ivison, R.; Karim, A.; Knudsen, K.; Menten, Karl; Rix, H-W.; Schinnerer, Eva; Wardlow, J. L.; Weiss, A.; van der Werf, P. (2016-12-10)
      We present high-resolution (0farcs16) 870 μm Atacama Large Millimeter/submillimeter Array (ALMA) imaging of 16 luminous (${L}_{\mathrm{IR}}\sim 4\times {10}^{12}\,{L}_{\odot }$) submillimeter galaxies (SMGs) from the ALESS ...

    • 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 ...

    • Physical Conditions of the Gas in an ALMA [CII]-identified Submillimetre Galaxy at z = 4.44 

      Huynh, M. T.; Norris, R. P.; Coppin, Kristen; Emonts, B. H. C.; Ivison, R. J.; Seymour, N.; Smail, Ian; Smolcic, V.; Swinbank, A. M.; Brandt, W. N.; Chapman, S.C.; Dannerbauer, H.; De Breuck, C.; Greve, T. R.; Hodge, J. A.; Karim, A.; Knudsen, K. K.; Menten, K.M.; van der Werf, P.; Walter, F.; Weiss, A. (2013-04)
      We present CO(2-1) observations of the submillimetre galaxy ALESS65.1 performed with the Australia Telescope Compact Array at 42.3 GHz. A previous ALMA study of submillimetre galaxies in the Extended Chandra Deep Field ...

    • 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 ...

    • The SCUBA-2 Cosmology Legacy Survey : 850um maps, catalogues and number counts 

      Geach, J. E.; Dunlop, J. S.; Halpern, M.; Smail, Ian; Werf, P. van der; Alexander, D. M.; Almaini, O.; Aretxaga, I.; Arumugam, V.; Asboth, V.; Banerji, M.; Beanlands, J.; Best, P. N.; Blain, A. W.; Birkinshaw, M.; Chapin, E. L.; Chapman, S. C.; Chen, C.-C.; Chrysostomou, A.; Clarke, C.; Clements, D. L.; Conselice, C.; Coppin, K. E. K.; Cowley, W. I.; Danielson, A. L. R.; Eales, S.; Edge, A. C.; Farrah, D.; Gibb, A.; Harrison, C. M.; Hine, N. K.; Hughes, D.; Ivison, R. J.; Jarvis, M.; Jenness, T.; Jones, S. F.; Karim, A.; Koprowski, M.; Knudsen, K. K.; Lacey, C. G.; Mackenzie, T.; Marsden, G.; McAlpine, K.; McMahon, R.; Meijerink, R.; Michalowski, M. J.; Oliver, S. J.; Page, M. J.; Peacock, J. A.; Rigopoulou, D.; Robson, E. I.; Roseboom, I.; Rotermund, K.; Scott, Douglas; Serjeant, S.; Simpson, C.; Simpson, J. M.; Smith, D. J. B.; Spaans, M.; Stanley, F.; Stevens, J. A.; Swinbank, A. M.; Targett, T.; Thomson, A. P.; Valiante, E.; Webb, T. M. A.; Willott, C.; Zavala, J. A.; Zemcov, M. (2016-11-10)
      We present a catalogue of nearly 3,000 submillimetre sources detected at 850um over ~5 square degrees surveyed as part of the James Clerk Maxwell Telescope (JCMT) SCUBA-2 Cosmology Legacy Survey (S2CLS). This is the largest ...

    • The SCUBA-2 cosmology legacy survey : ALMA resolves the rest-frame far-infrared emission of sub-millimeter galaxies 

      Simpson, J. M.; Smail, Ian; Swinbank, A.M.; Almaini, O.; Blain, A. W.; Bremer, M.N.; Chapman, S.C.; Chen, Chian Chou; Conselice, C.; Coppin, Kristen; Danielson, A. L. R.; Dunlop, J. S.; Edge, A. C.; Farrah, D.; Geach, James; Hartley, W. G.; Ivison, R. J.; Karim, A.; Lani, C.; Ma, C. J.; Meijerink, R.; Michałowski, M. J.; Mortlock, A.; Scott, D.; Simpson, C. J.; Spaans, M.; Thomson, A. P.; van Kampen, E.; Van Der Werf, P. P. (2015-01-16)

    • The SCUBA-2 cosmology legacy survey : Demographics of the 450-μm population 

      Roseboom, I.G.; Dunlop, J.S.; Cirasuolo, M.; Geach, J.E.; Smail, I.; Halpern, M.; van der Werf, P.; Almaini, O.; Arumugam, V.; Asboth, V.; Auld, R.; Blain, A.; Bremer, M.N.; Bock, J.; Bowler, R.A.A.; Buitrago, F.; Chapin, E.; Chapman, S.; Chrysostomou, A.; Clarke, C.; Conley, A.; Coppin, Kristen; Danielson, A. L. R.; Farrah, D.; Glenn, J.; Hatziminaoglou, E.; Ibar, E.; Ivison, R.J.; Jenness, T.; van Kampen, E.; Karim, A.; Mackenzie, T.; Marsden, G.; Meijerink, R.; Michałowski, M. J.; Oliver, S.J.; Page, M.J.; Pearson, E.; Scott, D.; Simpson, J.M.; Smith, Daniel; Spaans, M.; Swinbank, A.M.; Symeonidis, M.; Targett, T.; Valiante, E.; Viero, M.; Wang, L.; Willott, C.J.; Zemcov, M. (2013-11-01)
      We investigate the multiwavelength properties of a sample of 450-μm-selected sources from the SCUBA-2 Cosmology Legacy Survey. A total of 69 sources were identified above 4σ in deep SCUBA-2 450-μm observations overlapping ...