Browsing by Author "Smail, Ian"

Now showing items 1-20 of 54

  • Accurate Spectral energy distributions and selection effects for high-redshift dusty galaxies: a new hot population to discover with the Spitzer Space Telescope? 

    Blain, Andrew W.; Chapman, Scott C.; Smail, Ian; Ivison, Rob (2004-08-10)
    The spectral energy distributions (SEDs) of dust-enshrouded galaxies with powerful restframe far-infrared emission have been constrained by a range of ground-based and space-borne surveys. The IRAS catalog provides a ...

  • AEGIS20: a radio survey of the Extended Groth Strip 

    Ivison, R. J.; Chapman, S. C.; Faber, S. M.; Smail, Ian; Biggs, A. D.; Conselice, C. J.; Wilson, G.; Salim, S.; Huang, J. -S; Wilner, S. P. (2007-05-01)
    We describe AEGIS20 - a radio survey of the Extended Groth Strip (EGS) conducted with the Very Large Array (VLA) at 1.4GHz. The resulting catalog contains 1,123 emitters and is sensitive to ultraluminous starbursts to z1 ...

  • An ALMA survey of Sub-millimetre Galaxies in the Extended Chandra Deep Field South: Detection of [C II] at z=4.4 

    Swinbank, Mark; Karim, Alexander; Smail, Ian; Hodge, Jackie; Walter, Fabian; Bertoldi, Frank; Biggs, Andy; De Breuck, Carlos; Chapman, Scott; Coppin, Kristen; Cox, Pierre; Danielson, Alice; Dannerbauer, Helmut; Ivison, Rob; Greve, Thomas; Knudsen, Kirsten; Menten, Karl; Simpson, James; Schinnerer, Eva; Wardlow, Julie; Weiss, Axel; van der Werf, Paul (2012-09-06)
    We present ALMA 870-um (345GHz) observations of two sub-millimetre galaxies (SMGs) drawn from an ALMA study of the 126 sub-millimeter sources from the LABOCA Extended Chandra Deep Field South Survey (LESS). The ALMA data ...

  • An ALMA Survey of Submillimeter Galaxies in the Extended Chandra Deep Field South: The Redshift Distribution and Evolution of Submillimeter Galaxies 

    Simpson, James; Swinbank, Mark; Smail, Ian; Alexander, Dave; Brandt, Niel; Bertoldi, Frank; de Breuck, Carlos; Chapman, Scott; Coppin, Kristen; da Cunha, Elisabete; Danielson, Alice; Dannerbauer, Helmut; Greve, Thomas; Hodge, Jackie; Ivison, Rob; Karim, Alex; Knudsen, Kirsten; Poggianti, Bianca; Schinnerer, Eva; Thomson, Alasdair; Walter, Fabian; Wardlow, Julie; Weiss, Axel; van der Werf, Paul (2013-10-23)
    We present the first photometric redshift distribution for a large unbiased sample of 870um selected submillimeter galaxies (SMGs) with robust identifications based on observations with the Atacama Large Millimeter Array ...

  • An ALMA survey of submillimetre galaxies in the Extended Chandra Deep Field South: High resolution 870um source counts 

    Karim, Alexander; Swinbank, Mark; Hodge, Jackie; Smail, Ian; Walter, Fabian; Biggs, Andy; Simpson, James; Danielson, Alice; Alexander, David; Bertoldi, Frank; de Breuck, Carlos; Chapman, Scott; Coppin, Kristen; Dannerbauer, Helmut; Edge, Alastair; Greve, Thomas; Ivison, Rob; Knudsen, Kirsten; Menten, Karl; Schinnerer, Eva; Wardlow, Julie; Weiß, Axel; van der Werf, Paul (2013-04-16)
    We report the first counts of faint submillimetre galaxies (SMG) in the 870-um band derived from arcsecond resolution observations with the Atacama Large Millimeter Array (ALMA). We have used ALMA to map a sample of 122 ...

  • An ALMA Survey of Submillimetre Galaxies in the Extended Chandra Deep Field South: The Far-Infrared Properties of SMGs 

    Swinbank, Mark; Simpson, James; Smail, Ian; Harrison, Chris; Hodge, Jacqueline; Karim, Alex; Walter, Fabian; Alexander, Dave; Brandt, Niel; de Breuck, Carlos; da Cunha, Elizabete; Chapman, Scott; Coppin, Kristen; Danielson, Alice; Dannerbauer, Helmut; Decarli, Roberto; Greve, Thomas; Ivison, Rob; Knudsen, Kirsten; Lagos, Claudia; Schinnerer, Eva; Thomson, Alasdair; Wardlow, Julie; Weiss, Axel; van der Werf, Paul (2014)
    We exploit ALMA 870um (345GHz) observations of submillimetre sources in the Extended Chandra Deep Field South to investigate the far-infrared properties of high-redshift submillimetre galaxies (SMGs). Using the precisely ...

  • The Chandra Deep Protocluster Survey: Evidence for an Enhancement in the AGN Activity in the SSA22 Protocluster at z = 3.09 

    Lehmer, B. D.; Alexander, D. M.; Geach, J. E.; Smail, Ian; Basu-Zych, A.; Bauer, F. E.; Chapman, S. C.; Matsuda, Y.; Scharf, C. A.; Volonteri, M.; Yamada, T. (2009-01-20)
    We present results from a new ultra-deep 400 ks Chandra observation of the SSA22 protocluster at z = 3.09. We have studied the X-ray properties of 234 z ~ 3 Lyman break galaxies (LBGs; protocluster and field) and 158 z = ...

  • 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 ...

  • The Chandra Deep Protocluster Survey: Point-Source Catalogs for a 400 ks Observation of the z = 3.09 Protocluster in SSA22 

    Lehmer, B. D.; Alexander, D. M.; Chapman, S. C.; Smail, Ian; Bauer, F. E.; Brandt, W. N.; Geach, J. E.; Matsuda, Y.; Mullaney, J. R.; Swinbank, A. M. (2009-07-24)
    We present X-ray point-source catalogs for a deep 400 ks Chandra ACIS-I exposure of the SSA22 field. The observations are centred on a z = 3.09 protocluster, which is populated by Lyman break galaxies (LBGs), Lyalpha ...

  • Clustering of Submillimeter-Selected Galaxies 

    Blain, Andrew W.; Chapman, Scott S.; Smail, Ian; Ivison, Rob (2004-08-20)
    Using accurate positions from very deep radio observations to guide multi-object Keck spectroscopy, we have determined a substantially complete redshift distribution for very luminous, distant submillimeter(submm)-selected ...

  • Detection of molecular gas in a distant submillimetre galaxy at z=4.76 with ATCA 

    Coppin, Kristen; Chapman, Scott; Smail, Ian; Swinbank, Mark; Walter, Fabian; Wardlow, Julie; Weiss, Axel; Alexander, David M.; Brandt, Niel; Dannerbauer, Helmut; De Breuck, Carlos; Dickinson, Mark; Dunlop, James; Edge, Alastair; Emonts, Bjorn; Greve, Thomas; Huynh, Minh; Ivison, Rob; Knudsen, Kirsten; Menten, Karl; Schinnerer, Eva; van der Werf, Paul (2010-04-22)
    We have detected the CO(2-1) transition from the submillimetre galaxy (SMG) LESSJ033229.4-275619 at z=4.755 using the new Compact Array Broadband Backend system on the Australian Telescope Compact Array. These data have ...

  • 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 ...

  • Energetic galaxy-wide outflows in high-redshift ultra-luminous infrared galaxies hosting AGN activity 

    Harrison, C. M.; Alexander, D. M.; Swinbank, A. M.; Smail, Ian; Alaghband-Zadeh, S.; Bauer, F. E.; Chapman, S. C.; Del Moro, A.; Hickox, R. C.; Ivison, R. J.; Menendez-Delmestre, Karin; Mullaney, J. R.; Nesvadba, N. P. H. (2012-05-08)
    We present integral field spectroscopy observations, covering the [O III]4959,5007 emission-line doublet of eight high-redshift (z=1.4-3.4) ultra-luminous infrared galaxies (ULIRGs) that host Active Galactic Nuclei (AGN) ...

  • Evidence for extended, obscured starbursts in submm galaxies 

    Chapman, S. C.; Smail, Ian; Windhorst, R.; Muxlow, T.; Ivison, R. J. (2004-08-20)
    We compare high-resolution optical and radio imaging of 12 luminous submm galaxies at z=2.2+/-0.2 observed with HST and the MERLIN and VLA at comparable spatial resolution, 0.3" (2kpc). The radio emission traces the likely ...

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

    Coppin, Kristen; Danielson, Alice; Geach, James E.; Hodge, Jacqueline; Swinbank, Mark; Wardlow, Julie; Bertoldi, Frank; Biggs, Andy; Brandt, Niel; Caselli, Paola; Chapman, Scott; Dannerbauer, Helmut; Dunlop, Jim; Greve, Thomas; Hamann, Fred; Ivison, Rob; Karim, Alex; Knudsen, Kirsten; Menten, Karl; Schinnerer, Eva; Smail, Ian; Spaans, Marco; Walter, Fabian; Webb, Tracy; van der Werf, Paul (2012-08-23)
    We present Herschel-PACS spectroscopy of the [OI]63um far-infrared cooling line from a sample of six unlensed and spectroscopically-confirmed 870um-selected submillimetre (submm) galaxies (SMGs) at 1.13, tentatively detect ...

  • 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 ...

  • A Hubble Space Telescope NICMOS and ACS Morphological Study of z~2 Submillimetre Galaxies 

    Swinbank, Mark; Smail, Ian; Chapman, Scott; Borys, Colin; Alexander, Dave; Blain, Andrew; Conselice, Chris; Hainline, Laura; Ivison, Rob (2010-02-12)
    We present a quantitative morphological analysis using HST NICMOS H160- and ACS I775- band imaging of 25 spectroscopically confirmed submillimetre galaxies (SMGs) which have redshifts between z=0.7-3.4. Our analysis also ...

  • Integral Field Spectroscopy of 2.0<z<2.7 Sub-mm Galaxies; gas morphologies and kinematics 

    Alaghband-Zadeh, S.; Chapman, S. C.; Swinbank, A. M.; Smail, Ian; Harrison, C. M.; Alexander, D. M.; Casey, C. M.; Dave, R.; Narayanan, D.; Tamura, Y.; Umehata, J. (2012-05-24)
    We present two-dimensional, integral field spectroscopy covering the rest-frame wavelengths of strong optical emission lines in nine sub-mm-luminous galaxies (SMGs) at 2.0&lt;z&lt;2.7. The GEMINI-NIFS and VLT-SINFONI imaging ...

  • 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. ...