Astrophysical: Quasars

  • Publication
    Extinction curve template for intrinsically reddened quasars
    We analyzed the near-infrared to UV data of 16 quasars with redshifts ranging from 0.71
  • Publication
    Extreme star formation events in quasar hosts over 0.5 < z < 4
    We explore the relationship between active galactic nuclei (AGN) and star formation in a sample of 513 optically luminous type 1 quasars up to redshifts of ˜4...
  • News
    Fast and furious: detection of powerful winds driven by a supermassive black hole from La Palma
    This is the first publication based entirely on data obtained with EMIR, an instrument developed in the Instituto de Astrofísica de Canarias (IAC) which...
  • Publication
    Field-level Lyman-α forest modeling in redshift space via augmented nonlocal Fluctuating Gunn-Peterson Approximation
    Context. Devising fast and accurate methods of predicting the Lyman-α forest at the field level, avoiding the computational burden of running large-volume...
  • Publication
    First black hole mass estimation for the quadruple lensed system WGD2038-4008
    Context. The quadruple lensed system WGD2038-4008 (z s = 0.777 ± 0.001) has recently been discovered with the help of new techniques and observations. Black...
  • Publication
    First Direct Evidence for Keplerian Rotation in Quasar Inner Broad-line Regions
    We introduce a novel method to derive rotation curves with light-day spatial resolution of the inner regions of lensed quasars. We aim to probe the kinematics...
  • Publication
    First Ground-based Charge-coupled Device Proper Motions for Fornax. II. Final Results
    We present the first entirely ground-based astrometric determination of the proper motion for the Fornax Local Group dwarf spheroidal satellite galaxy of the...
  • Publication
    First simultaneous UBVRI photopolarimetric observations of a sample of normal quasars
    We present what we believe to be the first truly simultaneous UBVRI photopolarimetric results for a sample of eight 'normal' quasars. In five of these quasars...
  • Publication
    First tentative detection of anisotropy in the QSO distribution around nearby edge-on spiral galaxies
    Aims:To check whether the polar angle distribution of QSOs around nearby spiral galaxies is isotropic or not. Methods: A statistical analysis of the polar angle...