Browsing Physics & Atmospheric Science by Author "Chapman, Scott"

Now showing items 1-20 of 31

  • An 850-micron SCUBA map of the Groth Strip and reliable source extraction 

    Coppin, Kristen; Halpern, Mark; Scott, Douglas; Borys, Colin; Chapman, Scott (2005-03)
    We present an 850-micron map and list of candidate sources in a 70 arcmin^2 sub-area of the Groth Strip observed using SCUBA. We initially detect 7 candidate sources with signal-to-noise ratios (SNRs) between 3.0 and 3.5 ...

  • 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 ...

  • Density Variations in the NW Star Stream of M31 

    Carlberg, R. G.; Richer, Harvey B.; McConnachie, Alan W.; Irwin, Mike; Ibata, Rodrigo A.; Dotter, Aaron L.; Chapman, Scott; Fardal, Mark; Ferguson, A. M. N.; Lewis, G. F.; Navarro, Julio F.; Puzia, Thomas H.; Valls-Gabaud, David (2011-02-17)
    The Pan Andromeda Archeological Survey (PAndAS) CFHT Megaprime survey of the M31-M33 system has found a star stream which extends about 120 kpc NW from the center of M31. The great length of the stream, and the likelihood ...

  • 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 ...

  • The disappearance of Lyα blobs: a GALEX search at z=0.8 

    Keel, William C.; III., Raymond E. White; Chapman, Scott; Windhorst, Rogier A. (2009-07-13)
    Lyman alpha blobs - luminous, spatially extended emission-line nebulae, often lacking bright continuum counterparts - are common in dense environments at high redshift. Until recently, atmospheric absorption and filter ...

  • Do globular clusters possess Dark Matter halos? A case study in NGC 2419 

    Ibata, Rodrigo; Nipoti, Carlo; Sollima, Antonio; Bellazzini, Michele; Chapman, Scott; Dalessandro, Emanuele (2012-10-29)
    We use recently published measurements of the kinematics, surface brightness and stellar mass-to-light ratio of the globular cluster NGC 2419 to examine the possibility that this Galactic halo satellite is embedded in a ...

  • Draco, a flawless dwarf galaxy 

    Segall, Mathieu; Ibata, Rodrigo; Irwin, Michael; Martin, Nicolas; Chapman, Scott (2007-03-01)
    The Draco dwarf spheroidal galaxy (dSph), with its apparent immense mass to light ratio and compact size, holds many clues to the nature of the enigmatic dark matter. Here we present deep photometric studies of this dwarf ...

  • Evidence for an accretion origin for the outer halo globular cluster system of M31 

    Mackey, Dougal; Huxor, Avon; Ferguson, Annette; Irwin, Mike; Tanvir, Nial; McConnachie, Alan; Ibata, Rodrigo; Chapman, Scott; Lewis, Geraint (2010-05-20)
    We use a sample of newly-discovered globular clusters from the Pan-Andromeda Archaeological Survey (PAndAS) in combination with previously-catalogued objects to map the spatial distribution of globular clusters in the M31 ...

  • Extracting Source Parameters from Gaussian Fits to Two-Particle Correlations 

    Chapman, Scott; Nix, J. Rayford; Heinz, Ulrich (1995-11/19)
    Using a quadratic saddle-point approximation, we show how information about a particle-emitting source can be extracted from gaussian fits to two-particle correlation data. Although the formalism is completely general, ...

  • The First Measurements of Galaxy Clustering from IRAC Data of the Spitzer First Look Survey 

    Fang, Fan; Shupe, David L.; Wilson, Gillian; Lacy, Mark; Fadda, Dario; Jarrett, Tom; Masci, Frank; Appleton, P. N.; Armus, Lee; Chapman, Scott; Choi, Philip I.; Frayer, D. T.; Heinrichsen, Ingolf; Helou, George; Im, Myungshin; Marleau, Francine R.; Soifer, B. T.; Squires, Gordon K.; Storrie-Lombardi, L. J.; Surace, Jason; Teplitz, Harry I.; Yan, Lin (2004-09)

  • 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 ...

  • 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 ...

  • Measurement of the Sunyaev-Zel'dovich Increment in Massive Galaxy Clusters 

    Zemcov, Michael; Halpern, Mark; Borys, Colin; Chapman, Scott; Holland, Wayne; Pierpaoli, Elena; Scott, Douglas (2003-12)
    We have detected the Sunyaev-Zel'dovich (SZ) increment at 850 microns in two galaxy clusters (Cl 0016+16 and MS 1054.4-0321) using SCUBA (Sub-millimetre Common User Bolometer Array) on the James Clerk Maxwell Telescope. ...

  • Optical and Near-Infrared Integral Field Spectroscopy of the SCUBA Galaxy N2-850.4 

    Swinbank, Mark; Smail, Ian; Bower, Richard; Borys, Colin; Chapman, Scott; Blain, Andrew; Ivison, Rob; Ramsay-Howat, Suzie; Keel, William; Bunker, Andrew (2005-05-11)
    We present optical and near-infrared integral field spectroscopy of the SCUBA galaxy SMM J163650.43+405734.5 (ELAIS N2 850.4) at z=2.385. We combine Ly-alpha and H-alpha emission line maps and velocity structure with high ...

  • The origin of [Fe II] emission in NGC 4151 

    Turner, James E. H.; Allington-Smith, Jeremy; Chapman, Scott; Content, Robert; Done, Christine; Haynes, Roger; Lee, David; Morris, Simon (2002-03)
    The centre of NGC 4151 has been observed in the J-band with the SMIRFS integral field unit (IFU) on the UK Infrared Telescope. A map of [Fe II] emission is derived, and compared with the distributions of the optical narrow ...

  • PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies 

    Martin, Nicolas F.; McConnachie, Alan W.; Irwin, Mike; Widrow, Lawrence M.; Ferguson, Annette M. N.; Ibata, Rodrigo A.; Dubinski, John; Babul, Arif; Chapman, Scott; Fardal, Mark; Lewis, Geraint F.; Navarro, Julio; Rich, R. Michael (2009-09-02)
    We present the discovery of two new dwarf galaxies, Andromeda XXI and Andromeda XXII, located in the surroundings of the Andromeda and Triangulum galaxies (M31 and M33). These discoveries stem from the first year data of ...

  • PAndAS' progeny: extending the M31 dwarf galaxy cabal 

    Richardson, Jenny C.; Irwin, Mike; McConnachie, Alan W.; Martin, Nicolas F.; Dotter, Aaron; Ferguson, Annette M. N.; Ibata, Rodrigo A.; Chapman, Scott; Lewis, Geraint F.; Tanvir, Nial R.; Rich, R. Michael (2011-02-14)
    We present the discovery of five new dwarf galaxies, Andromeda XXIII-XXVII, located in the outer halo of M31. These galaxies were found in the second year of data from the Pan-Andromeda Archaeological Survey (PAndAS) of ...