Now showing items 161-180 of 532

  • The globular cluster NGC 2419: a crucible for theories of gravity 

    Ibata, R., A. Sollima, C. Nipoti, M. Bellazzini, et al. 2011. "The globular cluster NGC 2419: a crucible for theories of gravity." The Astrophysical Journal 738:186.
    We present the analysis of a kinematic data set of stars in the globular cluster NGC 2419, taken with Keck/DEIMOS. Combined with a reanalysis of deep HST and Subaru imaging data, which provide an accurate luminosity profile ...
  • The nucleus of the Sagittarius dSph galaxy and M54: a window on the process of galaxy nucleation 

    Bellazzini, M., R. A. Ibata, S. C. Chapman, A. D. Mackey, et al. 2008. "The nucleus of the Sagittarius dSph galaxy and M54: a window on the process of galaxy nucleation." The Astronomical Journal 136(3): 1147-1170
    We present the results of a thorough study of the nucleus of the Sgr dwarf spheroidal galaxy and of the bright globular cluster M54 that resides within the same nucleus (Sgr,N). We have obtained accurate radial velocities ...
  • On the accretion origin of a vast extended stellar disk around the Andromeda galaxy 

    Ibata, R., S. Chapman, A. M. N. Ferguson, G. Lewis, et al. 2005. "On the accretion origin of a vast extended stellar disk around the Andromeda galaxy." The Astrophysical Journal 634(1): 287-313
    We present the discovery of an inhomogenous, low-surface brightness, extended disk-like structure around the Andromeda galaxy (M31) based on a large kinematic survey of more than 2800 stars with the Keck/DEIMOS spectrograph. ...
  • Observing Cold Gas in Submillimeter Galaxies: Detection of CO(1-0) Emission in SMM J13120+4242 with the Green Bank Telescope 

    Hainline, L. J., A. W. Blain, T. R. Greve, S. C. Chapman, et al. 2006. "Observing Cold Gas in Submillimeter Galaxies: Detection of CO(1-0) Emission in SMM J13120+4242 with the Green Bank Telescope." The Astrophysical Journal 650(2): 614-623
    We report the first detection of CO(1-0) emission from a submillimeter-selected galaxy, using the Green Bank Telescope. We identify the line in the spectrum of SMM J13120+4242 as a broad emission feature at z=3.408, with ...
  • An interferometric CO survey of luminous submm galaxies 

    Greve, T. R., F. Bertoldi, Ian Smail, R. Neri, et al. 2005. "An interferometric CO survey of luminous submm galaxies." Monthly Notices of the Royal Astronomical Society 359(3): 1165-1183
    In this paper we present results from an IRAM Plateau de Bure millimetre-wave Interferometer (PdBI) survey for CO emission towards radio-detected submillimetre galaxies (SMGs) with known optical and near-infrared spectroscopic ...
  • 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) ...
  • A LABOCA survey of the Extended Chandra Deep Field South - submillimeter properties of near-IR selected galaxies 

    Greve, T. R., A. Weiss, F. Walter, I. Smail, et al. 2009. "A LABOCA survey of the Extended Chandra Deep Field South - submillimeter properties of near-IR selected galaxies." The Astrophysical Journal 719(1): 483.
    Using the 330hr ESO-MPG 870-micron survey of the Extended Chandra Deep Field South (ECDF-S) obtained with the Large Apex BOlometer CAmera (LABOCA) on the Atacama Pathfinder EXperiment (APEX), we have carried out a stacking ...
  • Luminous Starbursts in the Redshift Desert at z 1-2: Star Formation Rates, Masses & Evidence for Outflows 

    Banerji, Manda, Scott C. Chapman, Ian Smail, S. Alaghband-Zadeh, et al. 2011. "Luminous Starbursts in the Redshift Desert at z 1-2: Star Formation Rates, Masses & Evidence for Outflows." Monthly Notices of the Royal Astronomical Society 418:1071.
    We present a spectroscopic catalogue of 40 luminous starburst galaxies at z=0.7--1.7 (median z=1.3). 19 of these are submillimetre galaxies (SMGs) and 21 are submillimetre-faint radio galaxies (SFRGs). This sample helps ...
  • Submillimeter Observations of Millimeter Bright Galaxies Discovered by the South Pole Telescope 

    Greve, T. R., J. D. Vieira, A. Weiss, J. E. Aguirre, et al. 2012. "Submillimeter Observations of Millimeter Bright Galaxies Discovered by the South Pole Telescope." The Astrophysical Journal 756:101.
    We present APEX SABOCA 350micron and LABOCA 870micron observations of 11 representative examples of the rare, extremely bright (S_1.4mm > 15mJy), dust-dominated millimeter-selected galaxies recently discovered by the South ...
  • The LABOCA Survey of the Extended Chandra Deep Field South: Clustering of submillimetre galaxies 

    Hickox, Ryan C., J. L. Wardlow, Ian Smail, A. D. Myers, et al. 2011. "The LABOCA Survey of the Extended Chandra Deep Field South: Clustering of submillimetre galaxies." Monthly Notices of the Royal Astronomical Society 421:284.
    We present a measurement of the spatial clustering of submillimetre galaxies (SMGs) at z = 1-3. Using data from the 870 micron LESS survey, we employ a novel technique to measure the cross-correlation between SMGs and ...
  • The Stellar Mass Content of Submillimeter-Selected Galaxies 

    Hainline, L. J., A. W. Blain, I. Smail, D. M. Alexander, et al. 2010. "The Stellar Mass Content of Submillimeter-Selected Galaxies." The Astrophysical Journal 740:96.
    We present a new study of the stellar mass in a sample of ~ 70 submillimeter-selected galaxies (SMGs) with accurate spectroscopic redshifts. We fit combinations of stellar population synthesis models and power laws to the ...
  • AzTEC Half Square Degree Survey of the SHADES Fields -- I. Maps, Catalogues, and Source Counts 

    Austermann, J. E., J. S. Dunlop, T. A. Perera, K. S. Scott, et al. 2009. "AzTEC Half Square Degree Survey of the SHADES Fields -- I. Maps, Catalogues, and Source Counts." Monthly Notices of the Royal Astronomical Society 401:160.
    We present the first results from the largest deep extragalactic millimetre-wavelength survey undertaken to date. These results are derived from maps covering over 0.7 deg^2, made at 1.1mm, using the AzTEC continuum camera ...
  • 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 ...
  • Spitzer identifications and classifications of submillimeter galaxies in giant, high-redshift Lyman-alpha emission-line nebulae 

    Geach, J. E., Ian Smail, S. C. Chapman, D. M. Alexander, et al. 2007. "Spitzer identifications and classifications of submillimeter galaxies in giant, high-redshift Lyman-alpha emission-line nebulae." The Astrophysical Journal 655(1): 9-L12
    Using Spitzer Space Telescope IRAC (3.6-8um) and MIPS (24um) imaging, as well as Hubble Space Telescope optical observations, we identify the IRAC counterparts of the luminous power sources residing within the two largest ...
  • The Chandra Deep Protocluster Survey: Lyα Blobs are powered by heating, not cooling 

    Geach, J. E., D. M. Alexander, B. D. Lehmer, Ian Smail, et al. 2009. "The Chandra Deep Protocluster Survey:Lyα Blobs are powered by heating, not cooling." The Astrophysical Journal, 700(1): 1-9
    We present the results of a 400ks Chandra survey of 29 extended Ly-alpha emitting nebulae (Ly-alpha Blobs, LABs) in the z=3.09 proto-cluster in the SSA22 field. We detect luminous X-ray counterparts in five LABs, implying ...
  • 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
  • The SCUBA-2 Cosmology Legacy Survey: blank-field number counts of 450um-selected galaxies and their contribution to the cosmic infrared background 

    Geach, J. E., E. L. Chapin, K. E. K. Coppin, J. S. Dunlop, et al. 2012. "The SCUBA-2 Cosmology Legacy Survey: blank-field number counts of 450um-selected galaxies and their contribution to the cosmic infrared background." Monthly Notices of the Royal Astronomical Society 432:53.
    The first deep blank-field 450um map (1-sigma~1.3mJy) from the SCUBA-2 Cosmology Legacy Survey (S2CLS), conducted with the James Clerk Maxwell Telescope (JCMT) is presented. Our map covers 140 arcmin^2 of the COSMOS field, ...
  • Infrared Properties of Radio-Selected Submillimeter Galaxies in the Spitzer First Look Survey Verification Field 

    Frayer, D. T., S. C. Chapman, L. Yan, L. Armus, et al. 2004. "Infrared Properties of Radio-Selected Submillimeter Galaxies in the Spitzer First Look Survey Verification Field." The Astrophysical Journal Supplement Series 154(1): 137-141
    We report on submillimeter and infrared observations of 28 radio-selected galaxies in the Spitzer First Look Survey Verification field (FLSV). All of the radio-selected galaxies that show evidence for emission at 850um ...
  • A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1 

    Geach, J. E., Y. Matsuda, Ian Smail, S. C. Chapman, et al. 2005. "A submm survey of Lyman-alpha haloes in the SA22 protocluster at z=3.1." Monthly Notices of the Royal Astronomical Society 363(4): 1398-1408
    We present the results from a submm survey of a sample of 23 giant Lya emitting nebulae in the overdensity at z=3.09 in the SA22 field. These objects, which have become known as Lya Blobs (LABs) have a diverse range of ...
  • The Recent Stellar Archeology of M31 - The Nearest Red Disk Galaxy 

    Davidge, T. J., A. W. McConnachie, M. A. Fardal, J. Fliri, et al. 2012. "The Recent Stellar Archeology of M31 - The Nearest Red Disk Galaxy." The Astrophysical Journal 751(1):74
    We examine the star-forming history (SFH) of the M31 disk during the past few hundred Myr. The luminosity functions (LFs) of main sequence stars at distances R_GC > 21 kpc (i.e. > 4 disk scale lengths) are matched by models ...