Browsing University of Hertfordshire by Author "Smail, I."

Now showing items 1-20 of 63

    • A 100 kpc inverse Compton x-ray halo around 4C 60.07 at z = 3.79 

      Smail, I.; Lehmer, B.D.; Ivison, R.J.; Alexander, D.M.; Bower, R.; Stevens, J. A.; Geach, James; Scharf, C.; Coppin, Kristen; van Breugel, W. (2009)
      We analyze a 100 ks Chandra observation of the powerful radio galaxy, 4C 60.07 at z = 3.79. We identify extended X-ray emission with L X ~ 1045 erg s–1 across a ~90 kpc region around the radio galaxy. The energetics of ...

    • A 1200um MAMBO Survey of the ELAIS N2 and Lockman Hole East Fields 

      Greve, T.R.; Ivison, R.J.; Bertoldi, F.; Stevens, Jason; Chapman, S. C.; Smail, I.; Blain, A.W. (Springer Nature, 2005)
      Using the MPIfR Max Planck Millimeter Bolometer array (MAMBO) on the IRAM 30m Telescope we have mapped the ELAIS N2 and Lockman Hole East Fields at 1200 μm to a rms noise level of 0.8–1.0 mJy per 11″ beam. The areas surveyed ...

    • ALMA Deep Field in SSA22: A Concentration of Dusty Starbursts in a z = 3.09 Protocluster Core 

      Umehata, H.; Tamura, Y.; Kohno, K.; Ivison, R.~J.; Alexander, D.~M.; Geach, J.~E.; Hatsukade, B.; Hughes, D.~H.; Ikarashi, S.; Kato, Y.; Izumi, T.; Kawabe, R.; Kubo, M.; Lee, M.; Lehmer, B.; Makiya, R.; Matsuda, Y.; Nakanishi, K.; Saito, T.; Smail, I.; Yamada, T.; Yamaguchi, Y.; Yun, M. (2015-12-04)
      We report the results of 1farcm5 × 3' mapping at 1.1 mm with the Atacama Large Millimeter/submillimeter Array toward the central region of the z = 3.09 SSA22 protocluster. By combining our source catalog with archival ...

    • 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 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 : 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 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 ...

    • An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : number counts of submillimeter galaxies 

      Stach, S. M.; Smail, I.; Swinbank, A. M.; Geach, J. E.; An, F. X.; Almaini, O.; Arumugam, V.; Blain, A. W.; Chapman, S. C.; Conselice, C. J.; Cooke, E. A.; Coppin, K. E. K.; Dunlop, J. S.; Farrah, D.; Gullberg, B.; Hartley, W.; Ivison, R. J.; Maltby, D. T.; Michałowski, M. J.; Scott, D.; Wardlow, J. L.; Werf, P. van der (2018-06-25)
      We report the first results of AS2UDS, an 870 μm continuum survey with the Atacama Large Millimeter/Submillimeter Array (ALMA) of a total area of ∼50 arcmin 2 comprising a complete sample of 716 submillimeter sources drawn ...

    • An ALMA survey of the SCUBA-2 Cosmology Legacy Survey UKIDSS/UDS field : Source catalogue and properties 

      Stach, S. M.; Dudzevičiūtė, U.; Smail, I.; Swinbank, A. M.; Geach, J. E.; An, F. X.; Almaini, O.; Arumugam, V.; Blain, A. W.; Chapman, S. C.; Conselice, C. J.; Cooke, E. A.; Coppin, K. E. K.; Cunha, E. da; Dunlop, J. S.; Farrah, D.; Gullberg, B.; Hodge, J. A.; Ivison, R. J.; Kocevski, Dale D.; Michałowski, M. J.; Miyaji, Takamitsu; Scott, D.; Wardlow, J. L.; Weiss, Axel; Werf, P. van der (2019-06-06)
      We present the catalogue and basic properties of sources in AS2UDS, an 870-\mum continuum survey with the Atacama Large Millimetre/sub-millimetre Array (ALMA) of 716 single-dish sub-millimetre sources detected in the ...

    • 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 ...

    • AzTEC half square degree survey of the SHADES fields - II : Identifications, redshifts and evidence for large-scale structure 

      Michalowski, M. J.; Dunlop, J.S.; Ivison, R.J.; Cirasuolo, M.; Caputi, K.I.; Aretxaga, I.; Arumugam, V.; Austermann, J.E.; Chapin, E.L.; Chapman, S.C.; Coppin, Kristen; Egami, E.; Hughes, D.H.; Ibar, E.; Mortier, A.M.J.; Schael, A.M.; Scott, K.S.; Smail, I.; Targett, T.A.; Wagg, J.; Wilson, G.W.; Xu, L.; Yun, M. (2012-11-01)
      The Astronomical Thermal Emission Camera (AzTEC) 1.1mm survey of the two SCUBA HAlf Degree Extragalactic Survey (SHADES) fields is the largest (0.7 deg ) blank-field millimetre-wavelength (mm-wavelength) survey undertaken ...

    • The BLAST 250 μm-selected galaxy population in GOODS-South 

      Dunlop, J.S.; Ade, P.A.R.; Bock, J.J.; Chapin, E.L.; Cirasuolo, M.; Coppin, Kristen; Devlin, M.J.; Griffin, M.; Greve, T.R.; Gundersen, J.O.; Halpern, M.; Hargrave, P.C.; Hughes, D.H.; Ivison, R.J.; Klein, J.; Kovacs, A.; Marsden, G.; Mauskopf, P.; Netterfield, Calvin B.; Olmi, L.; Pascale, E.; Patanchon, G.; Rex, M.; Scott, D.; Semisch, C.; Smail, I.; Targett, T.A.; Thomas, N.; Truch, M.D.P.; Tucker, C.; Tucker, G.S.; Viero, M.P.; Walter, F.; Wardlow, J. L.; Weiss, A.; Wiebe, D.V. (2010-11-01)
      We identify and investigate the nature of the 20 brightest 250 μm sources detected by the Balloon-borne Large Aperture Submillimetre Telescope (BLAST) within the central 150 arcmin of the Great Observatories Origins Deep ...

    • Bright Lyα emitters at z ~ 9 : Constraints on the LF from HizELS 

      Sobral, D.; Best, P.N.; Geach, J.E.; Smail, I.; Kurk, J.; Cirasuolo, M.; Casali, M.; Ivison, R.J.; Coppin, Kristen; Dalton, G.B. (2009-09-01)
      New results are presented, as part of the Hi-z Emission Line Survey (HizELS), from the largest area survey to date (1.4 deg ) for Lyα emitters (LAEs) at z ~ 9. The survey, which is primarily targeting Hα emitters at z <3, ...

    • Chandra Detections of SCUBA Galaxies around High-z radio Sources 

      Smail, I.; Scharf, C.; Ivison, R.J.; Stevens, J. A.; Bower, R.; Dunlop, J.S. (2003-12)

    • CO interferometry of gas-rich spiral galaxies in the outskirts of an intermediate redshift cluster 

      Geach, J.E.; Smail, I.; Coppin, Kristen; Moran, S.M.; Edge, A.C.; Ellis, R.S. (2009-05-01)
      We present IRAM Plateau de Bure Interferometer 3-mm observations of CO j(1→ 0) emission in two 24-μm selected starburst galaxies in the outskirts (~2-3,R) of the rich cluster C1 0024+16 (z = 0.395). The galaxies' inferred ...

    • A comprehensive view of a strongly lensed planck-associated submillimeter galaxy 

      Fu, Hai; Jullo, E.; Cooray, A.; Bussmann, R. S.; Ivison, R. J.; Perez-Fournon, I.; Djorgovski, S.G.; Scoville, N.; Yan, L.; Riechers, D. A.; Aguirre, J.; Auld, R.; Baes, M.; Baker, A. J.; Bradford, M.; Cava, A.; Clements, D. L.; Dannerbauer, H.; Dariush, A.; De Zotti, G.; Dole, H.; Dunne, L.; Dye, S.; Eales, S.; Frayer, D.; Gavazzi, R.; Gurwell, M.; Harris, A.I.; Herranz, D.; Hopwood, R.; Hoyos, C.; Ibar, E.; Jarvis, M.J.; Kim, S.; Leeuw, L.; Lupu, R.; Maddox, S.; Martinez-Navajas, P.; Michalowski, M. J.; Negrello, M.; Omont, A.; Rosenman, M.; Scott, D.; Serjeant, S.; Smail, I.; Swinbank, A.M.; Valiante, E.; Verma, A.; Vieira, J.; Wardlow, J. L.; van der Werf, P. (2012-07-10)
      We present high-resolution maps of stars, dust, and molecular gas in a strongly lensed submillimeter galaxy (SMG) at z = 3.259. HATLAS J114637.9-001132 is selected from the Herschel-Astrophysical Terahertz Large Area Survey ...

    • Deep multi-frequency radio imaging in the Lockman Hole - II : The spectral index of submillimetre galaxies 

      Ibar, E.; Ivison, R.J.; Best, P.N.; Coppin, Kristen; Pope, A.; Smail, I.; Dunlop, J.S. (2010-01-01)
      We have employed the Giant Metre-wave Radio Telescope and the Very Large Array to map the Lockman Hole. At 610 and 1400 MHz, we reach noise levels of 15 and 6μJy beam , respectively, with well-matched resolutions (~5 ...

    • Deep radio imaging of the SCUBA 8-mJy survey fields: submillimetre source identifications and redshift distribution 

      Ivison, R.J.; Greve, T.R.; Smail, I.; Dunlop, J.S.; Roche, N.D.; Scott, S.E.; Page, M.J.; Stevens, J. A.; Almaini, O.; Blain, A.W.; Willott, C.J.; Fox, M.; Gilbank, D.G.; Serjeant, S.; Hughes, D.H. (2002-11)

    • The detection of a population of submillimeter-bright, strongly lensed galaxies 

      Negrello, Mattia; Hopwood, R.; de Zotti, G.; Cooray, A.; Verma, A.; Bock, J.; Frayer, D. T.; Gurwell, M.A.; Omont, A.; Neri, R.; Dannerbauer, H.; Leeuw, L. L.; Barton, E.; Cooke, J.; Kim, S.; da Cunha, E.; Rodighiero, G.; Cox, P.; Bonfield, David G.; Jarvis, M.J.; Serjeant, S.; Ivison, R.J.; Dye, S.; Aretxaga, I.; Hughes, D.H.; Ibar, E.; Bertoldi, F.; Valtchanov, I.; Eales, S.; Dunne, L.; Driver, S. P.; Auld, R.; Buttiglione, S.; Cava, A.; Grady, C.A.; Clements, D. L.; Dariush, A.; Fritz, J.; Hill, D.; Hornbeck, J.B.; Kelvin, L.; Lagache, G.; Lopez-Caniego, M.; Gonzalez-Nuevo, J.; Maddox, S.; Pascale, E.; Pohlen, M.; Rigby, E. E.; Robotham, A.; Simpson, C.; Smith, Daniel; Temi, P.; Thompson, Mark; Woodgate, B.E.; York, D.G.; Aguirre, J.E.; Beelen, A.; Blain, A.; Baker, A.J.; Birkinshaw, M.; Blundell, R.; Bradford, C.M.; Burgarella, D.; Danese, L.; Dunlop, J. S.; Fleuren, S.; Glenn, J.; Harris, A.I.; Kamenetzky, J.; Lupu, R. E.; Maddalena, R. J.; Madore, B. F.; Maloney, P. R.; Matsuhara, H.; Michaowski, M. J.; Murphy, E. J.; Naylor, B.J.; Nguyen, H.; Popescu, C.; Rawlings, S.; Rigopoulou, D.; Scott, D.; Scott, K.S.; Seibert, M.; Smail, I.; Tuffs, R. J.; Vieira, J. D.; van der Werf, P. P.; Zmuidzinas, J. (2010)
      Gravitational lensing is a powerful astrophysical and cosmological probe and is particularly valuable at submillimeter wavelengths for the study of the statistical and individual properties of dusty star-forming galaxies. ...