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...
The hyperluminous infrared quasar 3C 318 and its implications for interpreting submm detections of high-redshift radio galaxies
We present near-infrared spectroscopy and imaging of the compact steep-spectrum radio source 3C 318, which shows it to be a quasar at redshift z=1.574 (the z=0...
The I.A.C./Q.M.C. catalogue of quasar multiband spectra.
One of the major problems using quasars to investigate the Hubble diagram is an uncertainty as to the size of the bolometric correction. Some estimates have...
The impact of different physical processes on the statistics of Lyman-limit and damped Lyman α absorbers
We compute the z = 3 neutral hydrogen column density distribution function f(NHI) for 19 simulations drawn from the Overwhelmingly Large Simulations project...
The importance of galaxy interactions in triggering type II quasar activity
We present deep Gemini Multi-Object Spectrograph-South optical broad-band images for a complete sample of 20 Sloan Digital Sky Survey selected type II quasars...
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...
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...
The influence of relativistic kinematics on the asymmetry of spectral line profiles and the observed asymmetries in AGN's
The influence of general relativistic effects on spectral line profiles is studied. Some peculiarities observed in the profiles of broad lines of AGNs, like the...
The ISM Properties and Gas Kinematics of a Redshift 3 Massive Dusty Star-forming Galaxy
We present CO (J = 1 → 0 3 → 2 5 → 4 10 → 9) and 1.2 kpc resolution [C II] line observations of the dusty star-forming galaxy (SFG) HXMM05—carried out with the...