Browsing Chapman, Scott by Title

Now showing items 173-192 of 211

  • Slicing The Monoceros Overdensity with Suprime-Cam 

    Conn, Blair C., Noelia E. D. Noël, Hans-Walter Rix, R. R. Lane, et al. 2012. "Slicing The Monoceros Overdensity with Suprime-Cam." The Astrophysical Journal 754:101.
    We derive distance, density and metallicity distribution of the stellar Monoceros Overdensity (MO) in the outer Milky Way, based on deep imaging with the Subaru Telescope. We applied CMD fitting techniques in three stripes ...

  • Spectroscopic Characterisation of 250um-Selected Hyper-Luminous Star Forming Galaxies 

    Casey, C. M., S. C. Chapman, Ian Smail, S. Alaghband-Zadeh, et al. 2010. "Spectroscopic Characterisation of 250um-Selected Hyper-Luminous Star Forming Galaxies." Monthly Notices of the Royal Astronomical Society 411:2739.
    We present near-infrared spectroscopic observations from VLT ISAAC of thirteen 250\mu m-luminous galaxies in the CDF-S, seven of which have confirmed redshifts which average to = 2.0 \pm 0.4. Another two sources of the 13 ...

  • A spectroscopic survey of EC4, an Extended Cluster in Andromeda's halo 

    Collins, M. L. M., S. C. Chapman, M. Irwin, R. Ibata, et al. 2009. "A spectroscopic survey of EC4, an Extended Cluster in Andromeda's halo." Monthly Notices of the Royal Astronomical Society 396: 1619.
    We present a spectroscopic survey of candidate red giant branch stars in the extended star cluster, EC4, discovered in the halo of M31 from our CFHT/MegaCam survey, overlapping the tidal streams, Stream Cp and Stream Cr. ...

  • 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 Spitzer Space Telescope Extra-Galactic First Look Survey: 24 micron data reduction, catalog, and source identification 

    Fadda, Dario, F. R. Marleau, L. J. Storrie-Lombardi, D. Makovoz, et al. 2006. "The Spitzer Space Telescope Extra-Galactic First Look Survey: 24 micron data reduction, catalog, and source identification." The Astronomical Journal 131(6): 2859-2876
    We present the reduction of the 24 micron data obtained during the first cosmological survey performed by the Spitzer Space Telescope (First Look Survey, FLS). The survey consists of a shallow observation of 2.5x2 sq deg ...

  • SPT 0538-50: Physical conditions in the ISM of a strongly lensed dusty star-forming galaxy at z=2.8 

    Bothwell, M. S., J. E. Aguirre, S. C. Chapman, D. P. Marrone, et al. 2013. "SPT 0538-50: Physical conditions in the ISM of a strongly lensed dusty star-forming galaxy at z=2.8." Astrophysical Journal, 779 (1):67
    We present observations of SPT-S J053816-5030.8, a gravitationally-lensed dusty star forming galaxy (DSFG) at z = 2.7817, first discovered at millimeter wavelengths by the South Pole Telescope. SPT 0538-50 is typical of ...

  • The Star Formation History and Dust Content in the Far Outer Disc of M31 

    Bernard, Edouard J., Annette M. N. Ferguson, Michael K. Barker, Sebastian L. Hidalgo, et al. 2011. "The Star Formation History and Dust Content in the Far Outer Disc of M31." Monthly Notices of the Royal Astronomical Society 420: 2625.
    We present a detailed analysis of two fields located 26 kpc (~5 scalelengths) from the centre of M31. One field samples the major axis populations--the Outer Disc field--while the other is offset by ~18' and samples the ...

  • 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 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 ...

  • Strangers in the night: Discovery of a dwarf spheroidal galaxy on its first Local Group infall 

    Chapman, S. C., J. Penarrubia, R. Ibata, A. McConnachie, et al. 2007. "Strangers in the night: Discovery of a dwarf spheroidal galaxy on its first Local Group infall." The Astrophysical Journal 662(2): 79-L82
    We present spectroscopic observations of the AndXII dwarf spheroidal galaxy using DEIMOS/Keck-II, showing it to be moving rapidly through the Local Group (-556 km/s heliocentric velocity, -281 km/s relative to Andromeda ...

  • The structure of star clusters in the outer halo of M31 

    Tanvir, N. R., A. D. Mackey, A. M. N. Ferguson, A. P. Huxor, et al. 2012. "The structure of star clusters in the outer halo of M31." Monthly Notices of the Royal Astronomical Society 422:162.
    We present a structural analysis of halo star clusters in M31 based on deep Hubble Space Telescope (HST) Advanced Camera for Surveys (ACS) imaging. The clusters in our sample span a range in galactocentric projected distance ...

  • 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 ...

  • Submillimeter Galaxies at z 2: Evidence for Major Mergers & Constraints on Lifetimes, IMF and CO-H2 Conversion Factor 

    Tacconi, L. J., R. Genzel, I. Smail, R. Neri, et al. 2008. "Submillimeter Galaxies at z 2: Evidence for Major Mergers & Constraints on Lifetimes, IMF and CO-H2 Conversion Factor." The Astrophysical Journal 680(1): 246-262
    We report sub-arcsecond resolution IRAM PdBI millimeter CO interferometry of four z~2 submillimeter galaxies (SMGs), and sensitive CO (3-2) flux limits toward three z 2 UV-/optically selected star forming galaxies. The new ...

  • 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 ...

  • 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 ...

  • 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 ...

  • Submillimetre Detection of the z=2.83 Lyman-Break Galaxy, Westphal-MM8, and Implications for SCUBA2 

    Chapman, Scott C., and Caitlin M. Casey. 2009. "Submillimetre Detection of the z=2.83 Lyman-Break Galaxy, Westphal-MM8, and Implications for SCUBA2." Monthly Notices of the Royal Astronomical Society 398:1615.
    We present confusion limited submillimetre (submm) observations with the SCUBA camera on the JCMT of the z=2.83 Lyman-break galaxy (LBG), Westphal-MM8, reaching an 850um sensitivity even greater than that achieved in the ...

  • A submillimetre galaxy at z=4.76 in the LABOCA survey of the Extended Chandra Deep Field South 

    Coppin, Kristen, Ian Smail, David M. Alexander, Axel Weiss, et al. 2009. "A submillimetre galaxy at z=4.76 in the LABOCA survey of the Extended Chandra Deep Field South." 395(4): 1905-1914
    We report on the identification of the highest redshift submm-selected source currently known: LESSJ033229.4-275619. This source was detected in the Large Apex BOlometer CAmera (LABOCA) Extended Chandra Deep Field South ...

  • 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 ...

  • Submillimetre sources in rich cluster fields - source counts, redshift estimates, and cooling flow limits 

    Chapman, Scott C., Douglas Scott, Colin Borys, and Gregory G. Fahlman. 2002. "Submillimetre sources in rich cluster fields - source counts, redshift estimates, and cooling flow limits." Monthly Notices of the Royal Astronomical Society 330(1): 92-104
    Recent submillimetre surveys have revealed a population of dusty, high redshift sources of great cosmological significance for understanding dust-enshrouded star formation in distant galaxies, and for determining the origin ...