Astrophysical: Active galactic nuclei

  • Publication
    3D Spectroscopy with GTC-MEGARA of the Triple AGN Candidate in SDSS J102700.40+174900.8
    Triple-active galactic nucleus (AGN) systems are expected to be the result of the hierarchical model of galaxy formation. Since there are very few of them...
  • News
    A galaxy which outshines the rest
    Gas is essential to the process of forming a galaxy. During the first stages the amount of gas present determines the number of stars which will be in the...
  • Publication
    A Reemerging Bright Soft X-Ray State of the Changing-look Active Galactic Nucleus 1ES 1927+654: A Multiwavelength View
    1ES1927+654 is a nearby active galactic nucleus (AGN) that has shown an enigmatic outburst in optical/UV followed by X-rays, exhibiting strange variability...
  • Publication
    Accretion tori and cones of ionizing radiation in Seyfert galaxies
    The photoionization of extended narrow-line regions in Seyfert galaxies by the radiation produced in a thick accretion disk is studied. The emission-line...
  • Publication
    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...
  • Publication
    Adaptive Optics Observations of Active Galactic Nuclei: Zooming into the Central Parsec Region
    First results from the AGN-Heidelberg program aimed at resolving the central pc region of the closest Active Galactic Nuclei in the IR are presented. The core...
  • Publication
    An Extended Lyα Outflow from a Radio Galaxy at z = 3.7?
    Spatially resolved observations of active galactic nuclei (AGN) host galaxies undergoing feedback processes are one of the most relevant avenues through which...
  • Publication
    An idealized model for dust accretion in active galactic nuclei
    With an adequate supply of matter, the inward drifting of dust particles induced by the Poynting-Robertson effect can lead to the formation of a shell or disk...
  • Publication
    An optical fiber system to perform bidimensional spectroscopy
    This article describes a fiber optic system contrived to perform spectral imaging of extended objects. It consists of two fiber bundles mounted simultaneously...