Browsing by Author "Warren, S.J."

Now showing items 1-11 of 11

    • Discovery of a redshift 6.13 quasar in the UKIRT infrared deep sky survey 

      Mortlock, D.J.; Patel, M.; Warren, S.J.; Venemans, B.P.; McMahon, R.G.; Hewett, P.C.; Simpson, C.; Sharp, R.G.; Burningham, B.; Dye, S.; Ellis, S.; Gonzales-Solares, E.; Huelamo, N. (2009)
      Optical and near-infrared (NIR) spectra are presented for ULAS J131911.29+095051.4 (hereafter ULAS J1319+0950), a new redshift z = 6.127 0.004 quasar discovered in the Third Data Release (DR3) of the UKIRT Infrared Deep ...

    • The distance to the cool T9 brown dwarf ULAS J003402.77-005206.7 

      Smart, R.L.; Jones, H.R.A.; Lattanzi, M.G.; Leggett, S.K.; Warren, S.J.; Adamson, A.J.; Burningham, B.; Casali, M.; Evans, D.W.; Irwin, M.J.; Pinfield, D.J. (2010)
      Aims. We demonstrate the feasibility of determining parallaxes for nearby objects with the Wide Field Camera on the United Kingdom Infrared Telescope (UKIRT) using the UKIRT Infrared Deep Sky Survey as a first epoch. We ...

    • Eight new T4.5-T7.5 dwarfs discovered in the UKIDSS large area survey data release 1 

      Lodieu, N.; Pinfield, D.J.; Leggett, S.K.; Jameson, R.F.; Mortlock, D.J.; Warren, S.J.; Deacon, Niall (2007)

    • Fifteen new T dwarfs discovered in the UKIDSS Large Area Survey 

      Pinfield, D.J.; Burningham, B.; Tamura, M.; Leggett, S.K.; Lodieu, N.; Lucas, P.W.; Mortlock, D.J.; Warren, S.J.; Homeier, D.; Ishi, M.; Deacon, Niall; McMahon, R.G.; Hewett, P.C.; Zapatero Osorio, M.R.; Martin, E.L.; Jones, H.R.A.; Venemans, B.P.; Day-Jones, A.C.; Dobbie, P.D.; Folkes, S.; Dye, S.; Allard, F.; Baraffe, I.; Barrado y Navascues, D.; Casewell, S.L.; Chiu, K.; Chabrier, G.; Clarke, F.; Hodgkin, S.T.; Magazzu, A.; McCaughrean, M.J.; Moraux, E.; Nakajima, T.; Pavlenko, Y.; Tinney, C.G. (2008)
      We present the discovery of fifteen new T2.5-T7.5 dwarfs (with estimated distances between 24–93pc), identified in the first three main data releases of the UKIRT Infrared Deep Sky Survey. This brings the total number of ...

    • Galaxy and Mass Assembly (GAMA): survey diagnostics and core data release 

      Driver, S. P.; Hill, D. T.; Kelvin, L. S.; Robotham, A. S. G.; Liske, J.; Norberg, P.; Baldry, I.K.; Bamford, S. P.; Hopkins, A. M.; Loveday, J.; Peacock, J.A.; Andrae, E.; Bland-Hawthorn, J.; Brough, S.; Brown, M. J. I.; Cameron, E.; Ching, J. H. Y.; Colless, M.; Conselice, C. J.; Croom, S. M.; Cross, N.J.G.; De Propris, R.; Dye, S.; Drinkwater, M. J.; Ellis, S.; Graham, Alister W.; Grootes, M. W.; Gunawardhana, M.; Jones, D. H.; van Kampen, E.; Maraston, C.; Nichol, R.C.; Parkinson, H. R.; Phillipps, S.; Pimbblet, K.; Popescu, C. C.; Prescott, M.; Roseboom, I.G.; Sadler, E.M.; Sansom, A. E.; Sharp, R.G.; Smith, Daniel; Taylor, E.; Thomas, D.; Tuffs, R. J.; Wijesinghe, D.; Dunne, L.; Frenk, C. S.; Jarvis, M.J.; Madore, B. F.; Meyer, M. J.; Seibert, M.; Staveley-Smith, L.; Sutherland, W. J.; Warren, S.J. (2011-05)
      The Galaxy and Mass Assembly (GAMA) survey has been operating since 2008 February on the 3.9-m Anglo-Australian Telescope using the AAOmega fibre-fed spectrograph facility to acquire spectra with a resolution of R approximate ...

    • Mid-infrared photometry of cold brown dwarfs : diversity in age, mass and metallicity 

      Leggett, S.K.; Burningham, B.; Saumon, D.; Marley, M.; Warren, S.J.; Smart, R.L.; Jones, H.R.A.; Lucas, P.W.; Pinfield, D.J.; Tamura, M. (2010)
      We present new Spitzer Infrared Array Camera (IRAC) photometry of 12 very late-type T dwarfs: nine have [3.6], [4.5], [5.8], and [8.0] photometry and three have [3.6] and [4.5] photometry only. Combining this with previously ...

    • The physical properties of four ~600 K T dwarfs 

      Leggett, S.K.; Cushing, M.C.; Saumon, D.; Marley, M.; Roellig, T.L.; Warren, S.J.; Burningham, B.; Jones, H.R.A.; Kirkpatrick, J.D.; Lodieu, N.; Lucas, P.W.; Mainzer, A.K.; Martin, E.L.; McCaughrean, M.J.; Pinfield, D.J.; Sloan, G.C.; Smart, R.L.; Tamura, M.; Van Cleve, J. (2009)
      We present Spitzer 7.6-14.5 μm spectra of ULAS J003402.77–005206.7 and ULAS J133553.45+113005.2, two T9 dwarfs with the latest spectral types currently known. We fit synthetic spectra and photometry to the near- through ...

    • Properties of the Coolest Dwarfs 

      Leggett, S.K.; Freedman, R.; Geballe, T.; Golimowski, D.; Lodieu, N.; Marley, M.; Pinfield, D.J.; Saumon, D.; Stephens, D.; Warren, S.J. (Astronomical Society of the Pacific, 2008)
      Eleven years after the discovery of the first T dwarf, a population of ultracool L and T dwarfs has been identified that is large enough to show a range of atmospheric properties. Also, model atmospheres are sufficiently ...

    • The UKIRT infrared deep sky survey first data release 

      Warren, S.J.; Hambly, N.C.; Dye, S.; Almaini, O.; Cross, N.J.G.; Edge, A.C.; Foucaud, S.; Hewett, P.C.; Hodgkin, S.T.; Irwin, M.J.; Jameson, R.F.; Lawrence, A.; Lucas, P.W.; Adamson, A.J.; Bandyopadhyay, R.M.; Bryant, J.; Collines, R.S.; Davis, C.J.; Dunlop, J.S.; Evans, D.W.; Gonzales-Solares, E.; Hirst, P.; Jarvis, M.J.; Kendall, T.R. (2007)

    • The United Kingdom Infrared Telescope Infrared Deep Sky Survey first data release 

      Warren, S.J.; Hambly, N.C.; Dye, S.; Almaini, O.; Cross, N.J.G.; Edge, A.C.; Foucaud, S.; Hewett, P.C.; Hodgkin, S.T.; Irwin, M.J.; Jameson, R. F.; Lawrence, A.; Lucas, P.W.; Adamson, A.J.; Bandyopadhyay, R.M.; Bryant, J.; Collins, R. S.; Davis, C.J.; Dunlop, J. S.; Emerson, J.P.; Evans, D. W.; Gonzales-Solares, E. A.; Hirst, P.; Jarvis, M.J.; Kendall, Timothy; Kerr, T.H.; Leggett, S.K.; Lewis, J.R.; Mann, R. G.; McLure, R. J.; McMahon, R.G.; Mortlock, D.J.; Rawlings, M. G.; Read, M. A.; Riello, M.; Simpson, C.; Smith, Daniel; Sutorius, E. T. W.; Targett, T.A.; Varricatt, W.P. (2007-02-11)
      The First Data Release (DR1) of the United Kingdom Infrared Telescope Infrared Deep Sky Survey (UKIDSS) took place on 2006 July 21. The UKIDSS is a set of five large near-infrared surveys, covering a complementary range ...

    • A very cool brown dwarf in UKIDSS DR1 

      Warren, S.J.; Mortlock, D.J.; Leggett, S.K.; Pinfield, D.J.; Homeier, D.; Dye, S.; Jameson, R.F.; Lodieu, N.; Lucas, P.W.; Adamson, A.J.; Allard, F.; Barrado y Navascues, D.; Casali, M.; Chiu, K.; Hambly, N.C.; Hewett, P.C.; Hirst, P.; Irwin, M.J.; Lawrence, A.; Liu, M.C.; Martin, E.L.; Smart, R.L.; Valdivielso, L.; Venemans, B.P. (2007)