Physics & Atmospheric Science Faculty Research, Publications and Presentations: Recent submissions

Now showing items 121-140 of 532

  • A Herschel view of the far-infrared properties of submillimetre galaxies 

    Magnelli, B., D. Lutz, P. Santini, A. Saintonge, et al. 2012. "A Herschel view of the far-infrared properties of submillimetre galaxies." Astronomy and astrophysics 539:155.
    We study a sample of 61 submillimetre galaxies (SMGs) selected from ground-based surveys, with known spectroscopic redshifts and observed with Herschel as part of the PACS Evolutionary Probe (PEP) and the Herschel Multi-tiered ...

  • Mid- to far infrared properties of star-forming galaxies and active galactic nuclei 

    Magdis, G. E., D. Rigopoulou, G. Helou, D. Farrah, et al. 2013. "Mid- to far infrared properties of star-forming galaxies and active galactic nuclei." Astronomy and Astrophysics 558: A136
    We study the mid- to far-IR properties of a 24um-selected flux-limited sample (S24 > 5mJy) of 154 intermediate redshift (~0.15), infrared luminous galaxies, drawn from the 5MUSES survey. By combining existing mid-IR ...

  • 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 stellar halo and outer disk of M33 

    McConnachie, Alan W., Scott C. Chapman, Rodrigo A. Ibata, Annette M. N. Ferguson, et al. 2006. "The stellar halo and outer disk of M33." The Astrophysical Journal 647(1): 25-L28
    We present first results from a Keck/DEIMOS spectroscopic survey of red giant branch (RGB) stars in M33. The radial velocity distributions of the stars in our fields are well described by three Gaussian components, ...

  • 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 ...

  • Using [CI] to probe the Interstellar Medium in z~2.5 Sub-Millimeter Galaxies 

    Alaghband-Zadeh, S., S. C. Chapman, A. M. Swinbank, Ian Smail, et al. 2013. "Using [CI] to probe the Interstellar Medium in z~2.5 Sub-Millimeter Galaxies." Monthly Notices of the Royal Astronomical Society 435(2):1493
    We present new [CI](1-0) and 12CO(4-3) Plateau de Bure Interferometer observations of five Sub-Millimeter Galaxies (SMGs) and combine these with all available [CI](1-0) literature detections in SMGs to probe the gas ...

  • 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 ...

  • Deep Gemini/GMOS imaging of an extremely isolated globular cluster in the Local Group 

    Mackey, A. D., A. M. N. Ferguson, M. J. Irwin, N. F. Martin, et al. 2009. "Deep Gemini/GMOS imaging of an extremely isolated globular cluster in the Local Group." Monthly Notices of the Royal Astronomical Society 401:533.
    We report on deep imaging of a remote M31 globular cluster, MGC1, obtained with Gemini/GMOS. Our colour-magnitude diagram for this object extends ~5 magnitudes below the tip of the red giant branch and exhibits features ...

  • Submillimeter Observations of the Ultraluminous BAL Quasar APM 08279+5255 

    Lewis, Geraint F., Scott C. Chapman, Rodrigo A. Ibata, Michael J. Irwin, et al. 1998. "Submillimeter Observations of the Ultraluminous BAL Quasar APM 08279+5255." The Astrophysical Journal 505(1): 1-L5
    With an inferred bolometric luminosity of $5\times10^{15}{\rm \lsun}$, the recently identified z=3.87, broad absorption line quasar APM 08279+5255 is apparently the most luminous object currently known. As half of its ...

  • SCUBA observations of Hawaii 167 

    Lewis, Geraint F., and Scott C. Chapman. 2000. "SCUBA observations of Hawaii 167." Monthly Notices of the Royal Astronomical Society 318(3): 31-L33
    We present the first submillimetre observations of the z=2.36 broad absorption line system Hawaii 167. Our observations confirm the hypothesis that Hawaii 167 contains a massive quantity of dust, the optical depth of which ...

  • The LABOCA survey of the Extended Chandra Deep Field South: Two modes of star formation in AGN hosts? 

    Lutz, D., V. Mainieri, D. Rafferty, L. Shao, et al. 2010. "The LABOCA survey of the Extended Chandra Deep Field South: Two modes of star formation in AGN hosts?." The Astrophysical Journal 712(2):1287.
    We study the co-existence of star formation and AGN activity in X-ray selected AGN by analyzing stacked 870um submm emission from a deep and wide map of the Extended Chandra Deep Field South, obtained with LABOCA at the ...

  • Inside the whale: the structure and dynamics of the isolated Cetus dwarf spheroidal 

    Lewis, G. F., R. A. Ibata, S. C. Chapman, A. McConnachie, et al. 2007. "Inside the whale: the structure and dynamics of the isolated Cetus dwarf spheroidal." Monthly Notices of the Royal Astronomical Society 375(4): 1364-1370
    This paper presents a study of the Cetus dwarf, an isolated dwarf galaxy within the Local Group. A matched-filter analysis of the INT/WFC imaging of this system reveals no evidence for significant tidal debris that could ...

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

    Lehmer, B. D., D. M. Alexander, S. C. Chapman, Ian Smail, et al. 2009. "The Chandra Deep Protocluster Survey: Point-Source Catalogs for a 400 ks Observation of the z = 3.09 Protocluster in SSA22." Monthly Notices of the Royal Astronomical Society 400:299.
    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 ...

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

    Lehmer, B. D., D. M. Alexander, J. E. Geach, Ian Smail, et al. 2009. "The Chandra Deep Protocluster Survey: Evidence for an Enhancement in the AGN Activity in the SSA22 Protocluster at z = 3.09." The Astrophysical Journal 691(1): 687-695
    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 = ...

  • 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 ...

  • The Infrared Array Camera component of the Spitzer Space Telescope Extragalactic First Look Survey 

    Lacy, M., G. Wilson, F. Masci, L. J. Storrie-Lombardi, et al. 2005. "The Infrared Array Camera component of the Spitzer Space Telescope Extragalactic First Look Survey." The Astrophysical Journal Supplement Series 161(1): 41-52
    We present Infrared Array Camera (IRAC) data and source catalogs from the Spitzer Space Telescope Extragalactic First Look Survey. The data were taken in four broad bands centered at nominal wavelengths of 3.6, 4.5, 5.8 ...

  • The LABOCA survey of the Extended Chandra Deep Field South - radio and mid-infrared counterparts to submillimetre galaxies 

    Biggs, A. D., R. J. Ivison, E. Ibar, J. L. Wardlow, et al. 2010. "The LABOCA survey of the Extended Chandra Deep Field South - radio and mid-infrared counterparts to submillimetre galaxies." Monthly Notices of the Royal Astronomical Society 413:2314.
    We present radio and infrared (3.6-24um) counterparts to submillimetre galaxies (SMGs) detected in the Extended Chandra Deep Field South with the LABOCA 870-um bolometer camera on the 12-m Atacama Pathfinder Experiment. ...

  • PAndAS in the mist: The stellar and gaseous mass within the halos of M31 and M33 

    Lewis, Geraint F., Robert Braun, Alan W. McConnachie, Michael J. Irwin, et al. 2012. "PAndAS in the mist: The stellar and gaseous mass within the halos of M31 and M33." The Astrophysical Journal 763:4.
    Large scale surveys of the prominent members of the Local Group have provided compelling evidence for the hierarchical formation of massive galaxies, revealing a wealth of substructure that is thought to be the debris from ...

  • Modeling the evolution of infrared luminous galaxies: the influence of the Luminosity-Temperature distribution 

    Lewis, Geraint F., Scott C. Chapman, and George Helou. 2005. "Modeling the evolution of infrared luminous galaxies: the influence of the Luminosity-Temperature distribution." The Astrophysical Journal 621(1): 32-40
    The evolution of the luminous infrared galaxy population is explored using a pure luminosity evolution model which incorporates the locally observed luminosity-temperature distribution for IRAS galaxies. Pure luminosity ...

  • A robust sample of submillimetre galaxies: constraints on the prevalence of dusty, high-redshift starbursts 

    Ivison, R. J., Ian Smail, J. S. Dunlop, T. R. Greve, et al. 2005. "A robust sample of submillimetre galaxies: constraints on the prevalence of dusty, high-redshift starbursts." Monthly Notices of the Royal Astronomical Society 364(3): 1025-1040
    The modest significance of most sources detected in current submm surveys can potentially compromise some analyses due to the inclusion of spurious sources in catalogues typically selected at >3.0-3.5sigma. Here, we develop ...