Browsing Chapman, Scott by Title

Now showing items 39-58 of 211

  • Draco, a flawless dwarf galaxy 

    Segall, Mathieu, Rodrigo Ibata, Michael Irwin, Nicolas Martin, et al. 2007. "Draco, a flawless dwarf galaxy." Monthly Notices of the Royal Astronomical Society 375(3): 831-842
    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 ...

  • Dynamical Structure of the Molecular Interstellar Medium in an Extremely Bright, Multiply Lensed z 3 Submillimeter Galaxy Discovered with Herschel 

    Riechers, Dominik A., A. Cooray, A. Omont, R. Neri, et al. 2011. "Dynamical Structure of the Molecular Interstellar Medium in an Extremely Bright, Multiply Lensed z 3 Submillimeter Galaxy Discovered with Herschel." The Astrophysical Journal Letters 733:L12
    We report the detection of CO 5-4, 3-2, and 1-0 emission in the strongly lensed, Herschel/SPIRE-selected submillimeter galaxy (SMG) HLSW-01 at z=2.9574+/-0.0001, using the Plateau de Bure Interferometer, the Combined Array ...

  • Dynamics in the satellite system of Triangulum: Is AndXXII a dwarf satellite of M33? 

    Chapman, S. C., L. Widrow, M. L. M. Collins, J. Dubinski, et al. 2012. "Dynamics in the satellite system of Triangulum: Is AndXXII a dwarf satellite of M33?." Monthly Notices of the Royal Astronomical Society 430(1): 37.
    We present results from a spectroscopic survey of the dwarf spheroidal And XXII and the two extended clusters EC1 and EC2. These three objects are candidate satellites of the Triangulum galaxy, M33, which itself is likely ...

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

    Chapman, S. C., Ian Smail, R. J. Ivison, and A. W. Blain. 2002. "The effect of lensing on the identification of bright SCUBA galaxies." Monthly Notices of the Royal Astronomical Society 335(1): 17-L21
    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., D. M. Alexander, A. M. Swinbank, Ian Smail, et al. 2012. "Energetic galaxy-wide outflows in high-redshift ultra-luminous infrared galaxies hosting AGN activity." Monthly Notices of the Royal Astronomical Society 426:1073.
    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 a Major Merger Origin of High Redshift Sub-millimeter Galaxies 

    Conselice, Christopher J., Scott C. Chapman, and Rogier A. Windhorst. 2003. "Evidence for a Major Merger Origin of High Redshift Sub-millimeter Galaxies." The Astrophysical Journal 596(1): 5-L8
    Sub-mm detected galaxies located at redshifts $z > 1$ host a major fraction of the bolometric luminosity at high redshifts due to thermal emission from heated dust grains, yet the nature of these objects remains a mystery. ...

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

    Mackey, Dougal, Avon Huxor, Annette Ferguson, Mike Irwin, et al. 2010. "Evidence for an accretion origin for the outer halo globular cluster system of M31." The Astrophysical Journal Letters 717(1): L11.
    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 ...

  • Evidence for extended, obscured starbursts in submm galaxies 

    Chapman, S. C., Ian Smail, R. Windhorst, T. Muxlow, et al. 2004. "Evidence for extended, obscured starbursts in submm galaxies." The Astrophysical Journal 611(2): 732-738
    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 ...

  • Exploring the Properties of the M31 Halo Globular Cluster System 

    Huxor, A. P., A. M. N. Ferguson, N. R. Tanvir, M. J. Irwin, et al. 2011. "Exploring the Properties of the M31 Halo Globular Cluster System." Monthly Notices of the Royal Astronomical Society 414:770.
    Following on from our discovery of a significant population of M31 outer halo globular clusters (GCs), and updates to the Revised Bologna Catalogue of M31 GCs, we investigate the GC system of M31 out to an unprecedented ...

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

    Boone, F., B. Clément, J. Richard, D. Schaerer, et al. 2013. "An extended Herschel drop-out source in the center of AS1063, a 'normal' dusty galaxy at z=6.1 or SZ substructures?." Astronomy and astrophysics 559:L1
    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 ...

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

    Chapman, Scott, J. Rayford Nix, and Ulrich Heinz. 1995. "Extracting Source Parameters from Gaussian Fits to Two-Particle Correlations." 52(5): 2694-2703
    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, ...

  • Extragalactic millimeter-wave point source catalog, number counts and statistics from 771 square degrees of the SPT-SZ Survey 

    Mocanu, L. M., T. M. Crawford, J. D. Vieira, K. A. Aird, et al. 2013. "Extragalactic millimeter-wave point source catalog, number counts and statistics from 771 square degrees of the SPT-SZ Survey." The Astrophysical Journal 179:61
    We present a point source catalog from 771 square degrees of the South Pole Telescope Sunyaev Zel'dovich (SPT-SZ) survey at 95, 150, and 220 GHz. We detect 1545 sources above 4.5 sigma significance in at least one band. ...

  • Extragalactic Source Counts at 24 Microns in the Spitzer First Look Survey 

    Marleau, Francine R., D. Fadda, L. J. Storrie-Lombardi, G. Helou, et al. 2004. "Extragalactic Source Counts at 24 Microns in the Spitzer First Look Survey." The Astrophysical Journal Supplement Series 154(1): 66-69
    We present the Spitzer MIPS 24 micron source counts in the Extragalactic First Look Survey main, verification and ELAIS-N1 fields. Spitzer's increased sensitivity and efficiency in large areal coverage over previous infrared ...

  • The Far- and Mid-Infrared/Radio Correlations in the Spitzer Extragalactic First Look Survey 

    Appleton, P. N., D. T. Fadda, F. R. Marleau, D. T. Frayer, et al. 2004. "The Far- and Mid-Infrared/Radio Correlations in the Spitzer Extragalactic First Look Survey." 154(1):The Astrophysical Journal Supplement Series 147-150
    Using the SPITZER SPACE TELESCOPE and the VLA, we present the first DIRECT evidence that the well-known far-infrared/radio correlation is valid to cosmologically significant redshift. We also confirm, with improved statistics ...

  • Far-infrared characterization of an ultra-luminous starburst associated with a massively-accreting black hole at z=1.15 

    Floc'h, E. Le, C. N. A. Willmer, K. Noeske, N. P. Konidaris, et al. 2007. "Far-infrared characterization of an ultra-luminous starburst associated with a massively-accreting black hole at z=1.15." The Astrophysical Journal 660(1): 65-L68
    As part of the "All Wavelength Extended Groth Strip International Survey" (AEGIS), we describe the panchromatic characterization of an X-ray luminous active galactic nucleus (AGN) in a merging galaxy at z=1.15. This object ...

  • First detections of FIRBACK sources with SCUBA 

    Scott, Douglas, Guilaine Lagache, Colin Borys, Scott C. Chapman, et al. 1999. "First detections of FIRBACK sources with SCUBA." Astronomy and Astrophysics 357:L5
    The FIRBACK (Far InfraRed BACKground) survey represents the deepest extensive 170 micron images obtained by the ISO satellite. The sources detected comprise about 10% of the Cosmic IR Background (CIB) seen by COBE, and, ...

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

    Fang, Fan, David L. Shupe, Gillian Wilson, Mark Lacy, et al. 2004. "The First Measurements of Galaxy Clustering from IRAC Data of the Spitzer First Look Survey." 154(1): 35-38

  • First results from the UBC etch-alignment mosaic CCD 

    Chapman, S. C., G. S. Burley, and G. A. H. Walker. 1997. "First results from the UBC etch-alignment mosaic CCD." SPIE 3019
    First imaging results are obtained with a new CCD mosaic prototype (3K x 3k, 15 \mu m pixels). The CCDs are aligned using an etched socket alignment technique. Three different measurements of the alignment are made using ...

  • A Fully-Identified Sample of AEGIS20 Microjansky Radio Sources 

    Willner, S. P., M. L. N. Ashby, P. Barmby, S. C. Chapman, et al. 2012. "A Fully-Identified Sample of AEGIS20 Microjansky Radio Sources." 756(1)
    Infrared 3.6 to 8 micron images of the Extended Groth Strip yield plausible counterpart identifications for all but one of 510 radio sources in the AEGIS20 S(1.4 GHz) > 50 micro-Jy sample. This is the first such deep sample ...

  • Further multiwavelength observations of the SSA22 Ly_alpha emitting `blob' 

    Chapman, S. C., D. Scott, R. A. Windhorst, D. T. Frayer, et al. 2004. "Further multiwavelength observations of the SSA22 Ly_alpha emitting `blob'." The Astrophysical Journal 606(1): 85-91
    We present new follow-up observations of the sub-mm luminous Ly_alpha-emitting object in the SSA22 z=3.09 galaxy overdensity, referred to as `Blob 1' by Steidel et al.(2000). In particular we discuss high resolution Hubble ...