Browsing Chapman, Scott by Issue Date

Now showing items 21-40 of 211

  • Submillimetre and far-infrared spectral energy distributions of galaxies: the luminosity-temperature relation and consequences for photometric redshifts 

    Blain, Andrew W., V. E. Barnard, and Scott C. Chapman. 2003. "Submillimetre and far-infrared spectral energy distributions of galaxies: the luminosity-temperature relation and consequences for photometric redshifts." Monthly Notices of the Royal Astronomical Society 338(3): 733-744
    The spectral energy distributions (SEDs) of dusty high-redshift galaxies are poorly sampled in frequency and spatially unresolved. Their form is crucially important for estimating the large luminosities of these galaxies ...

  • The Infrared Counterparts of the Optically Unidentified CDF-S 1Ms Sources 

    Yan, Haojing, Rogier A. Windhorst, Huub J. A. Rottgering, Seth H. Cohen, et al. 2003. "The Infrared Counterparts of the Optically Unidentified CDF-S 1Ms Sources." The Astrophysical Journal 585(1): 67-72
    The Chandra Deep Field South (CDF-S) 1Ms exposure produced a catalog of 346 X-ray sources, of which 59 were not visible on the VLT/FORS1 and the ESO-MPI/WFI deep R-band images to a limit of R_{vega}=26.1--26.7 mag. Using ...

  • The Properties of Microjansky Radio Sources in the HDF-N, SSA13, and SSA22 Fields 

    Chapman, S. C., A. J. Barger, L. L. Cowie, D. Scott, et al. 2003. "The Properties of Microjansky Radio Sources in the HDF-N, SSA13, and SSA22 Fields." The Astrophysical Journal 585(1): 57-66
    (abridged) We present multiwavelength observations for a large sample of microjansky radio sources detected in ultradeep 1.4GHz maps centered on the Hubble Deep Field-North (HDF-N) and the Hawaii Survey Fields SSA13 and ...

  • The bi-variate luminosity-color distribution of IRAS galaxies, and implications for the high redshift Universe 

    Chapman, S. C., G. Helou, G. F. Lewis, and D. A. Dale. 2003. "The bi-variate luminosity-color distribution of IRAS galaxies, and implications for the high redshift Universe." 588(1): 186-198
    We present a characterization of the local luminosity-color, bi-variate distribution of IRAS galaxies from the 1.2Jy sample, selected at 60 micron. The S60/S100 infrared color is used as the best single parameter description ...

  • A Vigorous Starburst in the SCUBA Galaxy N2 850.4 

    Smail, Ian, S. C. Chapman, R. J. Ivison, A. W. Blain, et al. 2003. "A Vigorous Starburst in the SCUBA Galaxy N2 850.4." Monthly Notices of the Royal Astronomical Society 342(4): 1185-1193
    We present optical and near-IR spectroscopy of a z=2.38 hyperluminous IR galaxy, covering the restframe wavelength range from 1000-5000A. It appears to comprise two components separated by less than 1" on the sky (<8kpc); ...

  • Sub-mm and near-IR observations of galaxies selected at 170 microns 

    Sajina, A., C. Borys, S. Chapman, H. Dole, et al. 2003. "Sub-mm and near-IR observations of galaxies selected at 170 microns." Monthly Notices of the Royal Astronomical Society 343(4): 1365-1375
    We present results from JCMT sub-mm observations of sources selected from the {\sl ISO} FIRBACK (Far-IR BACKground) survey, along with UKIRT near-IR imaging of a sub-sample. This gives valuable insight into the brightest ...

  • The HDF-North SCUBA Super-map I: Submillimetre maps, sources and number counts 

    Borys, C., S. C. Chapman, M. Halpern, and D. Scott. 2003. "The HDF-North SCUBA Super-map I: Submillimetre maps, sources and number counts." Monthly Notices of the Royal Astronomical Society 344(2): 385-398
    We investigate the emission of sub-millimetre-wave radiation from galaxies in a 165 square arcminute region surrounding the Hubble Deep Field North. The data were obtained from dedicated observing runs from our group and ...

  • 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. ...

  • Submillimetre observations of a sample of broad absorption line quasars 

    Lewis, Geraint F., Scott C. Chapman, and Zdenka Kuncic. 2003. "Submillimetre observations of a sample of broad absorption line quasars." The Astrophysical Journal 596(1): 35-L38
    The broad absorption line (BAL) features seen in a small fraction of quasar optical/UV spectra are attributed to bulk outflows away from the quasar core. Observational evidence suggests that dust plays a key role in these ...

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

    Neri, R., R. Genzel, R. J. Ivison, F. Bertoldi, et al. 2003. "Interferometric Observations of Powerful CO Emission from the three Submillimeter Galaxies at z=2.30, 2.51 and 3.35." The Astrophysical Journal 597(2): 113-L116. 10.1086/379968
    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 ...

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

    Zemcov, Michael, Mark Halpern, Colin Borys, Scott Chapman, et al. 2003. "Measurement of the Sunyaev-Zel'dovich Increment in Massive Galaxy Clusters." Monthly Notices of the Royal Astronomical Society 346(4): 1179-1188
    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. ...

  • Hubble Space Telescope images of submillimeter sources: large, irregular galaxies at high redshift 

    Chapman, S. C., R. Windhorst, S. Odewahn, H. Yan, et al. 2003. "Hubble Space Telescope images of submillimeter sources: large, irregular galaxies at high redshift." The Astrophysical Journal 599(1): 92-104
    We present new Hubble Space Telescope STIS, high-resolution optical imaging of a sample of 13 submillimeter (submm) luminous galaxies, for which the optical emission has been pinpointed either through radio-1.4 GHz or ...

  • 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 ...

  • Deep SAURON Spectral-Imaging of the diffuse Lyman-alpha halo LAB1 in SSA22 

    Bower, Richard, S. L. Morris, R. Bacon, R. J. Wilman, et al. 2004. "Deep SAURON Spectral-Imaging of the diffuse Lyman-alpha halo LAB1 in SSA22." Monthly Notices of the Royal Astronomical Society 351(1): 63-69
    We have used the SAURON panoramic integral field spectrograph to study the structure of the Ly-alpha emission-line halo, LAB1, surrounding the sub-millimeter galaxy SMM J221726+0013. This emission-line halo was discovered ...

  • Taking measure of the Andromeda halo: a kinematic analysis of the giant stream surrounding M31 

    Ibata, R., S. Chapman, A. M. N. Ferguson, M. Irwin, et al. 2004. "Taking measure of the Andromeda halo: a kinematic analysis of the giant stream surrounding M31." Monthly Notices of the Royal Astronomical Society 351(1): 117-124
    We present a spectroscopic survey of the giant stellar stream found in the halo of the Andromeda galaxy. Taken with the DEIMOS multi-object spectrograph on the Keck2 telescope, these data display a narrow velocity dispersion ...

  • The tidal trail of NGC205? 

    McConnachie, A., M. Irwin, G. Lewis, R. Ibata, et al. 2004. "The tidal trail of NGC205?." Monthly Notices of the Royal Astronomical Society 351(4): 94-L98
    Using data taken as part of the Isaac Newton Telescope Wide Field Camera (INT WFC) survey of M31, we have identified an arc-like overdensity of blue, presumably metal-poor, red giant branch stars in the north-west quadrant ...

  • 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., Scott C. Chapman, Ian Smail, and Rob Ivison. 2004. "Accurate Spectral energy distributions and selection effects for high-redshift dusty galaxies: a new hot population to discover with the Spitzer Space Telescope?." The Astrophysical Journal 611(1): 52-58
    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 ...

  • The nature of a gravitationally lensed sub-millimetre arc in MS0451.6-0305: two interacting galaxies at z~2.9? 

    Borys, C., S. C. Chapman, M. Donahue, G. Fahlman, et al. 2004. "The nature of a gravitationally lensed sub-millimetre arc in MS0451.6-0305: two interacting galaxies at z~2.9?." Monthly Notices of the Royal Astronomical Society 352(3): 759-767
    We present a new SCUBA image of the cluster MS0451.6-0305, which exhibits strong, extended sub-mm flux at 850 microns. The most striking feature in the map is an elongated region of bright sub-mm emission, with a flux ...

  • 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 ...

  • Clustering of Submillimeter-Selected Galaxies 

    Blain, Andrew W., Scott S. Chapman, Ian Smail, and Rob Ivison. 2004. "Clustering of Submillimeter-Selected Galaxies." The Astrophysical Journal 611(2): 725-731
    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 ...