Astrophysical: Quasars

  • Publication
    QSOFEED: Investigating warm molecular, low- and high-ionization atomic gas in six type-2 quasars with GTC/EMIR
    We present long-slit near-infrared spectroscopic observations of six nearby (z ∼ 0.1) radio-quiet type-2 quasars (QSO2s) from the Quasar Feedback (QSOFEED)...
  • Publication
    QSOFEED: Relationship between star formation and active galactic nuclei feedback
    Context. Large-scale cosmological simulations suggest that feedback from active galactic nuclei (AGN) plays a crucial role in galaxy evolution. More...
  • Publication
    Quantifying Star Formation Activity in the Inner 1 kpc of Local MIR Bright QSOs
    We examine star formation activity in a distant (z 0.1) and flux-limited sample of quasars (QSOs). Midinfrared (MIR) spectral diagnostics at high spatial...
  • Publication
    Quantifying the cool ISM in radio AGNs: evidence for late-time retriggering by galaxy mergers and interactions
    We use deep Herschel observations of the complete 2Jy sample of powerful radio active galactic nuclei (AGNs) in the local Universe (0.05 < z < 0.7) to probe...
  • Publication
    Quasar 3C 298: a test-case for meteoritic nanodiamond 3.5μm emission
    Aims:We calculate the dust emission expected at 3.43 and 3.53 μm if meteoritic (i.e. hydrogenated) nanodiamonds are responsible for most of the far-UV break...
  • Publication
    Quasar H-beta profiles and discs
    High signal-to-noise spectra of the H-beta region of eight radio-loud quasars are presented in an investigation seeking evidence for the emission of this line...
  • Publication
    Quasars as a Tracer of Large-scale Structures in the Distant Universe
    We study the dependence of the number density and properties of quasars on the background galaxy density using the currently largest spectroscopic data sets of...
  • Publication
    Quasars Do Not Live in Merging Systems: No Enhanced Merger Rate at z≲0.8
    We tackle the long-standing question “what is the relevance of major mergers and interactions as triggering mechanisms for AGN activity?” We study a sample of...
  • Publication
    Quasars in the OTELO survey
    OTELO is a survey of emission line objects that will be carried out using tunable filters with OSIRIS at the GTC. The survey will have a deep impact on...