Browsing by Author "Afonso, J."

Now showing items 1-9 of 9

    • Cold dust in (some) high-z supernova host galaxies 

      Clements, D.; Farrah, D.; Rowan-Robinson, M.; Afonso, J.; Priddey, R.; Fox, M. (2005)

    • Deep spitzer observations of infrared-faint radio sources : high-redshift radio-loud active galactic nuclei? 

      Norris, R.P.; Afonso, J.; Cava, A.; Farrah, D.; Huynh, M.T.; Ivison, R.J.; Jarvis, M.J.; Lacy, M.; Mao, M.; Maraston, C.; Mauduit, J.C.; Middelberg, E.; Oliver, S.; Seymour, N.; Surace, J. (2011)
      Infrared-faint radio sources (IFRSs) are a rare class of objects which are relatively bright at radio wavelengths but very faint at infrared and optical wavelengths. Here we present sensitive near-infrared observations of ...

    • EMU : Evolutionary Map of the Universe 

      Norris, Ray P.; Hopkins, A. M.; Afonso, J.; Brown, S.; Condon, J. J.; Dunne, L.; Feain, I.; Hollow, R.; Jarvis, M.J.; Johnston-Hollitt, M.; Lenc, E.; Middelberg, E.; Padovani, P.; Prandoni, I.; Rudnick, L.; Seymour, N.; Umana, G.; Andernach, H.; Alexander, D. M.; Appleton, P. N.; Bacon, D.; Banfield, J.; Becker, W.; Brown, M. J. I.; Ciliegi, P.; Jackson, C.; Eales, S.; Edge, A. C.; Gaensler, B. M.; Giovannini, G.; Hales, C. A.; Hancock, P.; Huynh, M. T.; Ibar, E.; Ivison, R. J.; Kennicutt, R.; Kimball, Amy E.; Koekemoer, A. M.; Koribalski, B. S.; Lopez-Sanchez, A. R.; Mao, M. Y.; Murphy, T.; Messias, H.; Pimbblet, K. A.; Raccanelli, A.; Randall, K. E.; Reiprich, T. H.; Roseboom, I. G.; Roettgering, H.; Saikia, D. J.; Sharp, R. G.; Slee, O. B.; Smail, Ian; Thompson, Mark; Urquhart, J. S.; Wall, J. V.; Zhao, G. -B. (2011)
      EMU is a wide-field radio continuum survey planned for the new Australian Square Kilometre Array Pathfinder (ASKAP) telescope. The primary goal of EMU is to make a deep (rms ~ 10 microJy/beam) radio continuum survey of the ...

    • Evidence that FeLoBALs may signify the transition between an ultraluminous infrared galaxy and a quasar 

      Farrah, D.; Lacy, M.; Priddey, R.; Borys, C.; Afonso, J. (2007)

    • MIGHTEE: Are giant radio galaxies more common than we thought? 

      Delhaize, J.; Heywood, I.; Prescott, M.; Jarvis, M. J.; Delvecchio, I.; Whittam, I. H.; White, S. V.; Hardcastle, M. J.; Hale, C. L.; Afonso, J.; Ao, Y.; Brienza, M.; Brueggen, M.; Collier, J. D.; Daddi, E.; Glowacki, M.; Maddox, N.; Morabito, L. K.; Prandoni, I.; Randriamanakoto, Z.; Sekhar, S.; An, Fangxia; Adams, N. J.; Blyth, S.; Bowler, R. A. A.; Leeuw, L.; Marchetti, L.; Randriamampandry, S. M.; Thorat, K.; Seymour, N.; Smirnov, O.; Taylor, A. R.; Tasse, C.; Vaccari, M. (2020-12-14)
      We report the discovery of two new giant radio galaxies (GRGs) using the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) survey. Both GRGs were found within a 1 deg^2 region inside the COSMOS field. ...

    • MIGHTEE: the nature of the radio-loud AGN population 

      Whittam, I. H.; Jarvis, M. J.; Hale, C. L.; Prescott, M.; Morabito, L. K.; Heywood, I.; Adams, N. J.; Afonso, J.; An, Fangxia; Ao, Y.; Bowler, R. A.; Collier, J. D.; Deane, R. P.; Delhaize, J.; Frank, B.; Glowacki, M.; Hatfield, P. W.; Maddox, N.; Marchetti, L.; Matthews, A. M.; Prandoni, I.; Randriamampandry, S.; Randriamanakoto, Z.; Smith, D. J. B.; Taylor, A. R.; Thomas, N. L.; Vaccari, M. (2022-10-30)
      We study the nature of the faint radio source population detected in the MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Early Science data in the COSMOS field, focusing on the properties of the ...

    • The Spitzer Extragalactic Representative Volume Survey (SERVS) : Survey Definition and Goals 

      Mauduit, J.C.; Lacy, M.; Farrah, D.; Surace, J. A.; Jarvis, M.J.; Oliver, S.; Maraston, C.; Vaccari, M.; Marchetti, L.; Zeimann, G.; Gonzáles-Solares, E. A.; Pforr, J.; Petric, A. O.; Henriques, B.; Thomas, P. A.; Afonso, J.; Rettura, A.; Wilson, G.; Falder, J. T.; Geach, James; Huynh, M.; Norris, R. P.; Seymour, N.; Richards, G.T.; Stanford, S. A.; Alexander, D.M.; Becker, R.H.; Best, P.N.; Bizzocchi, L.; Bonfield, D.; Castro, N.; Cava, A.; Chapman, S.; Christopher, N.; Clements, D. L.; Covone, G.; Dubois, N.; Dunlop, J. S.; Dyke, E.; Edge, A.; Ferguson, H. C.; Foucaud, S.; Franceschini, A.; Gal, R. R.; Grant, J. K.; Grossi, M.; Hatziminaoglou, E.; Hickey, S.; Hodge, J. A.; Huang, J. S.; Ivison, R. J.; Kim, M.; LeFevre, O.; Lehnert, M.; Lonsdale, C.J.; Lubin, L. M.; McLure, R. J.; Messias, H.; Martínez-Sansigre, A.; Mortier, A. M. J.; Nielsen, D. M.; Ouchi, M.; Parish, G.; Perez-Fournon, I.; Pierre, M.; Rawlings, S.; Readhead, A.; Ridgway, S. E.; Rigopoulou, D.; Romer, A. K.; Rosebloom, I. G.; Rottgering, H.J.A.; Rowan-Robinson, M.; Sajina, A.; Simpson, C.J.; Smail, I.; Squires, G.K.; Stevens, J. A.; Taylor, R.; Trichas, M.; Urrutia, T.; van Kampen, E.; Verma, A.; Xu, C. K. (2012-08)
      We present the Spitzer Extragalactic Representative Volume Survey (SERVS), an 18 deg2 medium-deep survey at 3.6 and 4.5 μm with the postcryogenic Spitzer Space Telescope to ≈2 μJy (AB = 23.1) depth of five highly observed ...

    • The spitzer extragalactic representative volume survey (SERVS) : the environments of high-z SDSS quasi-stellar-objects 

      Falder, J.; Stevens, J. A.; Jarvis, M.J.; Bonfield, David; Lacy, M.; Farrah, D.; Oliver, S.; Surace, J.; Mauduit, J.C.; Vaccari, M.; Marchetti, L.; Gonzalez-Solares, E.; Afonso, J.; Cava, A.; Seymour, N. (2011)
      This paper presents a study of the environments of SDSS quasi-stellar objects (QSOs) in the Spitzer Extragalactic Representative Volume Survey (SERVS). We concentrate on the high-redshift QSOs as these have not been studied ...

    • Ultra steep spectrum radio sources in the Lockman Hole : SERVS identifications and redshift distribution at the faintest radio fluxes 

      Afonso, J.; Bizzocchi, L.; Ibar, E.; Grossi, M.; Simpson, C.; Chapman, S.; Jarvis, M.J.; Rottgering, H.; Norris, R. P.; Dunlop, J.; Ivison, R. J.; Messias, H.; Pforr, J.; Vaccari, M.; Seymour, N.; Best, P.; Gonzalez-Solares, E.; Farrah, D.; Fernandes, C. A. C.; Huang, J. -S.; Lacy, M.; Maraston, C.; Marchetti, L.; Mauduit, J. -C.; Oliver, S.; Rigopoulou, D.; Stanford, S. A.; Surace, J.; Zeimann, G. (2011-12-20)
      Ultra steep spectrum (USS) radio sources have been successfully used to select powerful radio sources at high redshifts (z greater than or similar to 2). Typically restricted to large-sky surveys and relatively bright radio ...