Now showing items 1-6 of 6

    • Active Galactic Nucleus and Starburst Classification from Spitzer Mid‐Infrared Spectra for High‐Redshift SWIRE Sources 

      Weedman, D.; Polletta, M.; Lonsdale, C. J.; Wilkes, Belinda Jane; Siana, B.; Houck, John; Surace, J.; Shupe, D.; Farrah, D.; Smith, H. E. (IOP Publishing, 2006)
      Spectra have been obtained with the Infrared Spectrograph (IRS) on the Spitzer Space Telescope for 20 sources in the Lockman Hole field of the SWIRE survey. The sample is divided between sources with indicators of an ...
    • The Cambridge–Cambridge ROSAT Serendipity Survey – II. Classification of X-ray-luminous Galaxies 

      Boyle, B.J.; McMahon, R.G.; Wilkes, Belinda Jane; Elvis, Martin S. (Royal Astronomical Society, 1995)
      We present the results of an intermediate-resolution (1.5\AA) spectroscopic study of 17 X-ray luminous narrow emission-line galaxies previously identified in the Cambridge-Cambridge {\it ROSAT} Serendipity Survey and the ...
    • Extreme Host Galaxy Growth in Powerful Early-Epoch Radio Galaxies 

      Barthel, Peter; Haas, Martin; Leipski, Christian; Wilkes, Belinda Jane (IOP Publishing, 2012)
      During the first half of the universe's life, a heyday of star formation must have occurred because many massive galaxies are in place after that epoch in cosmic history. Our observations with the revolutionary Herschel ...
    • The PG X-Ray QSO Sample: Links between the Ultraviolet–X-Ray Continuum and Emission Lines 

      Wills, Beverley J.; Laor, A.; Brotherton, M. S.; Wills, D.; Wilkes, Belinda Jane; Ferland, G. J.; Shang, Zhaohui (IOP Publishing, 1999)
      Two sets of relationships relate QSO UV to soft X-ray continua with the broad-line region. These are (i) the Baldwin relationships, which are inverse relationships between the broad-line equivalent width and the continuum ...
    • Resolved Dust Emission in a Quasar at Z = 3.65 

      Clements, D. L.; Petitpas, Glen Raymond; Farrah, D.; Hatziminaoglou, E.; Babbedge, T.; Rowan-Robinson, M.; Pérez-Fournon, I.; Hernán-Caballero, Antonio; Castro-Rodríguez, Nieves; Lonsdale, C.; Surace, J.; Franceschini, A.; Wilkes, Belinda Jane; Smith, Howard A. (IOP Publishing, 2009)
      We present submillimeter observations of the z = 3.653 quasar SDSS 160705+533558 together with data in the optical and infrared. The object is unusually bright in the far-IR and submillimeter with an IR luminosity of ∼1014 ...
    • The Unification of Powerful Quasars and Radio Galaxies and Their Relation to Other Massive Galaxies 

      Podigachoski, Pece; Barthel, Peter; Haas, Martin; Leipski, Christian; Wilkes, Belinda Jane (IOP Publishing, 2015)
      The unification model for powerful radio galaxies (RGs) and radio-loud quasars postulates that these objects are intrinsically the same but viewed along different angles. Herschel Space Observatory data permit the assessment ...