Browsing Chapman, Scott by Title

Now showing items 126-145 of 211

  • Obscured and unobscured active galactic nuclei in the Spitzer Space Telescope First Look Survey 

    Lacy, M., L. J. Storrie-Lombardi, A. Sajina, P. N. Appleton, et al. 2004. "Obscured and unobscured active galactic nuclei in the Spitzer Space Telescope First Look Survey." The Astrophysical Journal 154(1): 166-169
    Selection of active galactic nuclei (AGN) in the infrared allows the discovery of AGN whose optical emission is extinguished by dust. In this paper, we use the Spitzer Space Telescope First Look Survey (FLS) to assess what ...

  • 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 ...

  • 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. ...

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

    Swinbank, Mark, Ian Smail, Richard Bower, Colin Borys, et al. 2005. "Optical and Near-Infrared Integral Field Spectroscopy of the SCUBA Galaxy N2-850.4." Monthly Notices of the Royal Astronomical Society 359(2): 401-407
    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 ...

  • Optically faint counterparts to the ISO-FIRBACK 170 micron population: the discovery of cold, luminous galaxies at high redshift 

    Chapman, S. C., I. Smail, R. J. Ivison, G. Helou, et al. 2002. "Optically faint counterparts to the ISO-FIRBACK 170 micron population: the discovery of cold, luminous galaxies at high redshift." The Astrophysical Journal 573(1): 66-74
    We present Keck spectroscopy and UKIRT near-IR imaging observations of two 170micron-selected sources from the ISO-FIRBACK survey which have faint counterparts in the optical, and r-K~5. Both sources were expected to lie ...

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

    Turner, James E. H., Jeremy Allington-Smith, Scott Chapman, Robert Content, et al. 2002. "The origin of [Fe II] emission in NGC 4151." Monthly Notices of the Royal Astronomical Society 331(2): 284-292
    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 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 ...

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

    Martin, Nicolas F., Alan W. McConnachie, Mike Irwin, Lawrence M. Widrow, et al. 2009. "PAndAS' cubs: discovery of two new dwarf galaxies in the surroundings of the Andromeda and Triangulum galaxies." The Astrophysical Journal 705(1):758.
    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., Mike Irwin, Alan W. McConnachie, Nicolas F. Martin, et al. 2011. "PAndAS' progeny: extending the M31 dwarf galaxy cabal." The Astrophysical Journal 732 (2):76.
    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 ...

  • Physical Conditions of the Gas in an ALMA [CII]-identified Submillimetre Galaxy at z = 4.44 

    Huynh, M. T., R. P. Norris, K. E. K. Coppin, B. H. C. Emonts, et al. 2013. "Physical Conditions of the Gas in an ALMA [CII]-identified Submillimetre Galaxy at z = 4.44." Monthly Notices of the Royal Astronomical Society: Letters, Volume 431(1); L88-L92
    We present CO(2-1) observations of the submillimetre galaxy ALESS65.1 performed with the Australia Telescope Compact Array at 42.3 GHz. A previous ALMA study of submillimetre galaxies in the Extended Chandra Deep Field ...

  • Polytropic model fits to the globular cluster NGC 2419 in Modified Newtonian Dynamics 

    Ibata, Rodrigo, Antonio Sollima, Carlo Nipoti, Michele Bellazzini, et al. 2011. "Polytropic model fits to the globular cluster NGC 2419 in Modified Newtonian Dynamics." The Astrophysical Journal 743:43.
    We present an analysis of the globular cluster NGC 2419, using a polytropic model in Modified Newtonian Dynamics (MOND) to reproduce recently published high quality data of the structure and kinematics of the system. We ...

  • A population of hot, dusty ultra-luminous galaxies at z~2 

    Chapman, S. C., Ian Smail, A. W. Blain, and R. J. Ivison. 2004. "A population of hot, dusty ultra-luminous galaxies at z~2."The Astrophysical Journal 614(2): 671-678
    We report spectroscopic redshifts for 18 microJy-radio galaxies at mean redshift of z=2.2 that are faint at both submmillimeter (submm) and optical wavelengths. While the radio fluxes of these galaxies could indicate ...

  • A Population of z > 2 Far-Infrared Herschel-Spire-selected Starbursts 

    Casey, C. M., S. Berta, M. Bethermin, J. Bock, et al. 2012. "A Population of z > 2 Far-Infrared Herschel-Spire-selected Starbursts" Astrophysical Journal 761(2): 139.
    No abstract available.

  • 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 Properties of Sub-mm Galaxies in Hierarchical Models 

    Swinbank, Mark, Cedric Lacey, Ian Smail, Carlton Baugh, et al. 2008. "The Properties of Sub-mm Galaxies in Hierarchical Models." Monthly Notices of the Royal Astronomical Society 391: 420.
    We use the combined GALFORM semi-analytical model of galaxy formation and GRASIL spectrophotometric code to investigate the properties of galaxies selected via their sub-mm emission. Our fiducial model has previously been ...

  • Radio galaxy selected clusters at high redshift and associated ERO overdensities 

    Chapman, S. C., P. McCarthy, and S. E. Persson. 2000. "Radio galaxy selected clusters at high redshift and associated ERO overdensities." The Astronomical Journal120(4): 1612-1625
    Galaxy clusters at high redshift present a superb opportunity to study galaxy evolution, with large galaxy samples at fixed distances. Several lines of evidence point towards large formation redshifts and passive evolution ...

  • Radio imaging of the Subaru/XMM-Newton Deep Field - III. Evolution of the radio luminosity function beyond z=1 

    Simpson, Chris, Steve Rawlings, Rob Ivision, Masayuki Akiyama, et al. 2012. "Radio imaging of the Subaru/XMM-Newton Deep Field - III. Evolution of the radio luminosity function beyond z=1." Monthly Notices of the Royal Astronomical Society 421:3060.
    We present spectroscopic and eleven-band photometric redshifts for galaxies in the 100-uJy Subaru/XMM-Newton Deep Field radio source sample. We find good agreement between our redshift distribution and that predicted by ...

  • 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 ...

  • Redshift Determination and CO Line Excitation Modeling for the Multiply-Lensed Galaxy HLSW-01 

    Scott, K. S., R. E. Lupu, J. E. Aguirre, R. Auld, et al. 2011. "Redshift Determination and CO Line Excitation Modeling for the Multiply-Lensed Galaxy HLSW-01." The Astrophysical Journal 733:29.
    We report on the redshift measurement and CO line excitation of HERMES J105751.1+573027 (HLSW-01), a strongly lensed submillimeter galaxy discovered in Herschel/SPIRE observations as part of the Herschel Multi-tiered ...

  • A Redshift Survey of Herschel Far-Infrared Selected Starbursts and Implications for Obscured Star Formation 

    Casey, C. M., S. Berta, M. Bethermin, J. Bock, et al. 2012. "A Redshift Survey of Herschel Far-Infrared Selected Starbursts and Implications for Obscured Star Formation." Astrophysical Journal 761(2): 140.
    No abstract available.