Browsing by Author "Blain, A. W."

Now showing items 1-20 of 25

  • The Chandra Deep Protocluster Survey: Lyα Blobs are powered by heating, not cooling 

    Geach, J. E.; Alexander, D. M.; Lehmer, B. D.; Smail, Ian; Matsuda, Y.; Chapman, S. C.; Scharf, C. A.; Ivison, R. J.; Volonteri, M.; Yamada, T.; Blain, A. W.; Bower, R. G.; Bauer, F. E.; Basu-Zych, A. (2009-07-20)
    We present the results of a 400ks Chandra survey of 29 extended Ly-alpha emitting nebulae (Ly-alpha Blobs, LABs) in the z=3.09 proto-cluster in the SSA22 field. We detect luminous X-ray counterparts in five LABs, implying ...

  • Do submillimeter galaxies really trace the most massive dark matter halos? Discovery of a high-z cluster in a highly active phase of evolution 

    Chapman, S. C.; Blain, A. W.; Ibata, R.; Ivison, R. J.; Smail, Ian; Morrison, G. (2009-01-20)
    We present detailed observations of a z~1.99 cluster of submillimeter galaxies (SMGs), discovered as the strongest redshift spike in our entire survey of ~100 SMGs across 800 square arcmin. It is the largest blank-field ...

  • The effect of lensing on the identification of bright SCUBA galaxies 

    Chapman, S. C.; Smail, Ian; Ivison, R. J.; Blain, A. W. (2002-09)
    Spectroscopic surveys of luminous submillimetre-selected sources have uncovered optically-bright galaxies at z<1 close to the positions of several submillimetre (submm) sources. Naive statistical analyses suggest that ...

  • An extended Herschel drop-out source in the center of AS1063, a 'normal' dusty galaxy at z=6.1 or SZ substructures? 

    Boone, F.; Clément, B.; Richard, J.; Schaerer, D.; Lutz, D.; Weiß, A.; Zemcov, M.; Egami, E.; Rawle, T. D.; Walth, G. L.; Kneib, J. -P; Combes, F.; Smail, I.; Swinbank, A. M.; Altieri, B.; Blain, A. W.; Chapman, S.; Dessauges-Zavadsky, M.; Ivison, R. J.; Knudsen, K. K.; Omont, A.; Pello, R.; Pérez-González, P. G.; Valtchanov, I.; van der Werf, P.; Zamojski, M. (2013-08-30)
    In the course of our 870um APEX/LABOCA follow up of the Herschel Lensing Survey we have detected a source in AS1063 (RXC J2248.7-4431), that has no counterparts in any of the Herschel PACS/SPIRE bands, it is a Herschel ...

  • High-resolution CO and radio imaging of ULIRGs: extended CO structures, and implications for the universal star formation law 

    Bothwell, M. S.; Chapman, S. C.; Tacconi, L.; Smail, Ian; Ivison, R. J.; Casey, C. M.; Bertoldi, F.; Beswick, R.; Biggs, A.; Blain, A. W.; Cox, P.; Genzel, R.; Greve, T. R.; Kennicutt, R.; Muxlow, T.; Neri, R.; Omont, A. (2009-12-09)
    We present high spatial resolution (0.4", ~3.5 kpc) PdBI interferometric data on three ultra-luminous infrared galaxies (ULIRGs) at z~2: two submillimetre galaxies and one submillimetre faint star forming radio galaxy. The ...

  • Interferometric CO Observations of submillimeter-faint, radio-selected starburst galaxies at z~2 

    Chapman, S. C.; Neri, R.; Bertoldi, F.; Smail, Ian; Greve, T. R.; Trethewey, D.; Blain, A. W.; Cox, P.; Genzel, R.; Ivison, R. J.; Kovacs, A.; Swinbank, A. Omont A. M. (2008-12-20)
    High-redshift, dust-obscured galaxies -- selected to be luminous in the radio but relatively faint at 850um -- appear to represent a different population from the ultra-luminous submillimeter- (submm-) bright population. ...

  • An interferometric CO survey of luminous submm galaxies 

    Greve, T. R.; Bertoldi, F.; Smail, Ian; Neri, R.; Chapman, S. C.; Blain, A. W.; Ivison, R. J.; Genzel, R.; Omont, A.; Cox, P.; Tacconi, L.; Kneib, J. -P (2005-05)
    In this paper we present results from an IRAM Plateau de Bure millimetre-wave Interferometer (PdBI) survey for CO emission towards radio-detected submillimetre galaxies (SMGs) with known optical and near-infrared spectroscopic ...

  • Interferometric Observations of Powerful CO Emission from the three Submillimeter Galaxies at z=2.30, 2.51 and 3.35 

    Neri, R.; Genzel, R.; Ivison, R. J.; Bertoldi, F.; Blain, A. W.; Chapman, S. C.; Cox, P.; Greve, T. R.; Omont, A.; Frayer, D. T. (2003-11-10)
    We report IRAM Plateau de Bure, millimeter interferometry of three z=~2.4 to 3.4, SCUBA deep field galaxies. Our CO line observations confirm the rest-frame UV/optical redshifts, thus more than doubling the number of ...

  • Luminous Starbursts in the Redshift Desert at z 1-2: Star Formation Rates, Masses & Evidence for Outflows 

    Banerji, Manda; Chapman, Scott C.; Smail, Ian; Alaghband-Zadeh, S.; Swinbank, A. M.; Dunlop, J. S.; Ivison, R. J.; Blain, A. W. (2011-08-01)
    We present a spectroscopic catalogue of 40 luminous starburst galaxies at z=0.7--1.7 (median z=1.3). 19 of these are submillimetre galaxies (SMGs) and 21 are submillimetre-faint radio galaxies (SFRGs). This sample helps ...

  • Molecular Gas in Submillimetre-Faint, Star-Forming Ultraluminous Galaxies at z>1 

    Casey, C. M.; Chapman, S. C.; Neri, R.; Bertoldi, F.; Smail, I.; Coppin, K.; Greve, T. R.; Bothwell, M. S.; Beswick, R. J.; Blain, A. W.; Cox, P.; Genzel, R.; Muxlow, T. W. B.; Omont, A.; Swinbank, A. M. (2009-10-30)
    [abridged] We present interferometric CO observations of twelve z~2 submillimetre-faint, star-forming radio galaxies (SFRGs) which are thought to be ultraluminous infrared galaxies (ULIRGs) possibly dominated by warmer ...

  • Observing Cold Gas in Submillimeter Galaxies: Detection of CO(1-0) Emission in SMM J13120+4242 with the Green Bank Telescope 

    Hainline, L. J.; Blain, A. W.; Greve, T. R.; Chapman, S. C.; Smail, I.; Ivison, R. J. (2006-10-20)
    We report the first detection of CO(1-0) emission from a submillimeter-selected galaxy, using the Green Bank Telescope. We identify the line in the spectrum of SMM J13120+4242 as a broad emission feature at z=3.408, with ...

  • A population of hot, dusty ultra-luminous galaxies at z~2 

    Chapman, S. C.; Smail, Ian; Blain, A. W.; Ivison, R. J. (2004-10-20)
    We report spectroscopic redshifts for 18 microJy-radio galaxies at mean redshift of z=2.2 that are faint at both submmillimeter (submm) and optical wavelengths. While the radio fluxes of these galaxies could indicate ...

  • A Redshift Survey of the Submillimeter Galaxy Population 

    Chapman, S. C.; Blain, A. W.; Smail, Ian; Ivison, R. J. (2005-04)
    We have obtained spectroscopic redshifts using the Keck-I telescope for a sample of 73 submillimeter (submm) galaxies for which precise positions are available. The galaxies lie at redshifts out to z=3.6, with a median ...

  • The Relationship Between Stellar and Black-Hole Mass in Submillimeter Galaxies 

    Borys, C.; Smail, Ian; Chapman, S. C.; Blain, A. W.; Alexander, D. M.; Ivison, R. J. (2005-12-20)
    We analyze deep X-ray, optical and mid-infrared Spitzer observations of the CDF-N/GOODS-N region to study 13 submillimeter-detected galaxies (SMGs) with spectroscopic redshifts (median z=2.2). We find a correlation between ...

  • The Rest-Frame Optical Properties of SCUBA Galaxies 

    Smail, Ian; Chapman, S. C.; Blain, A. W.; Ivison, R. J. (2004-12-21)
    We present optical and near-IR photometry of 96 dusty, far-IR luminous galaxies. We have precise spectroscopic redshifts for all these galaxies yielding a median redshift of z=2.2. The majority, 78, are submm-detected ...

  • A robust sample of submillimetre galaxies: constraints on the prevalence of dusty, high-redshift starbursts 

    Ivison, R. J.; Smail, Ian; Dunlop, J. S.; Greve, T. R.; Swinbank, A. M.; Stevens, J. A.; Mortier, A. M. J.; Serjeant, S.; Targett, T. A.; Bertoldi, F.; Blain, A. W.; Chapman, S. C. (2005-12-11)
    The modest significance of most sources detected in current submm surveys can potentially compromise some analyses due to the inclusion of spurious sources in catalogues typically selected at >3.0-3.5sigma. Here, we develop ...

  • The SCUBA HAlf Degree Extragalactic Survey (SHADES) - III. Identification of radio and mid-infrared counterparts to submillimetre galaxies 

    Ivison, R. J.; Greve, T. R.; Dunlop, J. S.; Peacock, J. A.; Egami, E.; Smail, Ian; Ibar, E.; van Kampen, E.; Aretxaga, I.; Babbedge, T.; Biggs, A. D.; Blain, A. W.; Chapman, S. C.; Clements, D. L.; Coppin, K.; Farrah, D.; Halpern, M.; Hughes, D. H.; Jarvis, M. J.; Jenness, T.; Jones, J. R.; Mortier, A. M. J.; Oliver, S.; Papovich, C.; Perez-Gonzalez, P. G.; Pope, A.; Rawlings, S.; Rieke, G. H.; Rowan-Robinson, M.; Savage, R. S.; Scott, D.; Seigar, M.; Serjeant, S.; Simpson, C.; Stevens, J. A.; Vaccari, M.; Wagg, J.; Willott, C. J. (2007-07-27)
    Determining an accurate position for a submm galaxy (SMG) is the crucial step that enables us to move from the basic properties of an SMG sample - source counts and 2-D clustering - to an assessment of their detailed, ...

  • A Search for Neutral Carbon towards two z=4.05 Submillimetre Galaxies, GN20 and GN20.2 

    Casey, C. M.; Chapman, S. C.; Daddi, E.; Dannerbauer, H.; Pope, A.; Scott, D.; Bertoldi, F.; Beswick, R. J.; Blain, A. W.; Cox, P.; Genzel, R.; Greve, T. R.; Ivison, R. J.; Muxlow, T. W. B.; Neri, R.; Omont, A.; Smail, I.; Tacconi, L. J. (2009-08-26)
    Using the IRAM Plateau-de-Bure Interferometer (PdBI) we have searched for the upper fine structure line of neutral carbon (CI(2->1), nu_rest = 809 GHz) and 12CO(J=7->6) (nu_rest=806GHz) towards the submillimetre galaxies ...

  • SHARC-2 350 Micron Observations of Distant Submillimeter Selected Galaxies 

    Kovacs, A.; Chapman, S. C.; Dowell, C. D.; Blain, A. W.; Ivison, R. J.; Smail, I.; Phillips, T. G. (2006-10-20)
    We present 350 micron observations of 15 Chapman et al. submillimeter galaxies (SMGs) with radio counterparts and optical redshifts. We detect 12 and obtain sensitive upper limits for three, providing direct, precise ...

  • Spitzer identifications and classifications of submillimeter galaxies in giant, high-redshift Lyman-alpha emission-line nebulae 

    Geach, J. E.; Smail, Ian; Chapman, S. C.; Alexander, D. M.; Blain, A. W.; Stott, J. P.; Ivison, R. J. (2007-01-20)
    Using Spitzer Space Telescope IRAC (3.6-8um) and MIPS (24um) imaging, as well as Hubble Space Telescope optical observations, we identify the IRAC counterparts of the luminous power sources residing within the two largest ...