Astrofísicas: Cuásares

  • Publicación
    Absorption signatures of warm-hot gas at low redshift: O VI
    We investigate the origin and physical properties of O VI absorbers at low redshift (z= 0.25) using a subset of cosmological, hydrodynamical simulations from...
  • Publicación
    Active galactic nuclei and nuclear starbursts.
    The Starburst model for radio-quiet Active Galactic Nuclei (AGN) postulates that the activity seen in most AGN is powered solely by young stars and compact...
  • Publicación
    Active Galactic Nuclei Feedback and the Origin and Fate of the Hot Gas in Early-type Galaxies
    A recent determination of the relationships between the X-ray luminosity of the ISM (L X) and the stellar and total mass for a sample of nearby early-type...
  • Publicación
    AGILE, Fermi, Swift, and GASP/WEBT multi-wavelength observations of the high-redshift blazar 4C +71.07 in outburst
    Context. The flat-spectrum radio quasar 4C +71.07 is a high-redshift (z = 2.172), γ-loud blazar whose optical emission is dominated by thermal radiation from...
  • Publicación
    AGN feedback can produce metal enrichment on galaxy scales
    Context. Giant (> 100 kpc) nebulae associated with active galaxies provide rich information about the circumgalactic medium around galaxies, its link with the...
  • Publicación
    ALMA High-Level Data Products: submillimetre counterparts of SDSS quasars in the ALMA footprint
    The Atacama Large Millimetre/submillimetre Array (ALMA) is the world's most advanced radio interferometric facility, producing science data with an average rate...
  • Publicación
    ALMA Observations of the Molecular Gas in the Elliptical Galaxy NGC 3557
    We present the results of CO interferometric observations of the southern elliptical galaxy NGC 3557 with ALMA. We have detected both the CO(1–0) emission line...
  • Publicación
    ALMA reveals a compact and massive molecular outflow driven by the young AGN in a nearby ULIRG
    The ultraluminous infrared galaxy F13451+1232 is an excellent example of a galaxy merger in the early stages of active galactic nucleus (AGN) activity, a phase...
  • Publicación
    An excess of damped Lyman α galaxies near quasi-stellar objects
    We present a sample of 33 damped Lyman α systems (DLAs) discovered in the Sloan Digital Sky Survey (SDSS) whose absorption redshifts (zabs) are within 6000 km s...