Astrofísicas: Núcleos activos de galaxias

  • Publicación
    High-resolution imaging of active galactic nuclei
    A sample of active galaxies and quasars was observed with a photon-counting detector (IPCS) working in time-resolved imaging mode. The observing and data...
  • Publicación
    Identifying Missing Quasars from the DESI Bright Galaxy Survey
    The Dark Energy Spectroscopic Instrument (DESI) cosmology survey includes a Bright Galaxy Survey (BGS), which will yield spectra for over 10 million bright...
  • Publicación
    Image sharpening observations of active galactic nuclei
    It is shown that recentering, selecting, and adding up sharp short-exposure images obtained with a photon-counting detector working in time-resolved mode can...
  • Publicación
    Intermediate-resolution spectropolarimetry of 3C 273
    Spectropolarimetric observations of the quasar 3C 273 over the range 3200-8000 A show wavelength-dependent polarization in the continuum, while the lines had no...
  • Publicación
    Intermediate-resolution spectropolarimetry of a small sample of quasars
    We present spectropolarimetric observations of a sample of three quasars selected because of their very different broad-band polarization properties. All of the...
  • Publicación
    J-HERTz: J-PLUS Heritage Exploration of Radio Targets at z < 5
    We introduce J-HERTZ (J-PLUS Heritage Exploration of Radio Targets at z < 5), a new multiwavelength catalog that combines optical narrowband photometry from J...
  • Noticia
    La colaboración internacional GATOS se reúne en el IAC para desentrañar los misterios de los núcleos galácticos activos
    El Instituto de Astrofísica de Canarias (IAC) ha acogido del 20 al 23 de mayo la reunión científica de la colaboración GATOS ( Galaxy Activity, Torus, and...
  • Noticia
    Los agujeros negros supermasivos modifican la región central de las galaxias
    La investigadora del Instituto de Astrofísica de Canarias Cristina Ramos Almeida lidera un trabajo que ha utilizado datos del telescopio ALMA, en Chile, para...
  • Publicación
    Modeling an accretion disk in NGC 985
    An optically thick relativistic Keplerian accretion disk model is used to fit the broad component of the H-alpha, H-beta, and He I 5876 A emission line profiles...