• Talk
    The future of lensing (4). Galaxy investigations and other lensing science as we move into the future
  • Publication
    The Herschel Bright Sources (HerBS): sample definition and SCUBA-2 observations
    We present the Herschel Bright Sources (HerBS) sample, a sample of bright, high-redshift Herschel sources detected in the 616.4 deg2 Herschel Astrophysical...
  • Publication
    The Herschel-ATLAS: a sample of 500 μm-selected lensed galaxies over 600 deg2
    We present a sample of 80 candidate strongly lensed galaxies with flux density above 100 mJy at 500 μm extracted from the Herschel Astrophysical Terahertz Large...
  • Publication
    The Host Galaxy of the Lensed Quasar Q0957+561
    Infrared images of the Q0957+561 gravitational lens obtained with the Hubble Space Telescope show two large (~5") lensed images of the zs=1.41 quasar host...
  • Publication
    The Hubble Space Telescope Survey of BL Lacertae Objects: Gravitational Lens Candidates and Other Unusual Sources
    We present Hubble Space Telescope (HST) observations of seven unusual objects from the HST ``snapshot survey'' of BL Lacertae objects, of which four are...
  • Publication
    The Influence of Gravitational Microlensing on the Broad Emission Lines of Quasars
    We discuss the effects of microlensing on the broad emission lines (BELs) of QSOs in the light of recent determinations of the size of the broad-line region...
  • Publication
    The influence of microlensing on spectral line shapes generated by a relativistic accretion disc
    We study the influence of gravitational microlensing on the spectral line profiles originating from a relativistic accretion disc. Using the Chen & Halpern...
  • Publication
    The Influence of Microlensing on Time Delay Determinations in Double-imaged Quasars
    The lag associated with the main peak of the cross-correlation function of the two light curves arriving from a double-imaged quasar is usually identified with...
  • Publication
    The Initial Mass Function of Lens Galaxies from Quasar Microlensing
    We present a new approach to studying the initial mass function (IMF) in external galaxies based on quasar microlensing observations. We use measurements of...