Astrophysical: Active galactic nuclei

  • Publication
    Are the extended narrow line regions in AGN photoionized by the emission from thick accretion disks?
    We study the photoionization of the Extended Narrow Line Region (ENLR) using three anisotropic radiation fields: (1) a geometrically thick accretion disk; (2) a...
  • News
    Astronomers develop new method for taking the temperature of black holes
    An international research team led by researchers at the Instituto de Astrofísica de Canarias (IAC) has found a new method for measuring the masses of black...
  • News
    Astronomers discover rapid oscillations in the light of a blazar
    The international collaboration Whole Earth Blazar Telescope (WEBT), in which researchers from the Instituto de Astrofísica de Canarias (IAC) participate, has...
  • Publication
    BASS. XXIX. The Near-infrared View of the Broad-line Region (BLR): The Effects of Obscuration in BLR Characterization
    Virial black hole (BH) mass (M BH) determination directly involves knowing the broad-line region (BLR) clouds' velocity distribution, their distance from the...
  • Publication
    BASS. XXV. DR2 Broad-line-based Black Hole Mass Estimates and Biases from Obscuration
    We present measurements of broad emission lines and virial estimates of supermassive black hole masses (M BH) for a large sample of ultrahard X-ray-selected...
  • Publication
    Black hole-galaxy scaling relation evolution from Z̃2.5: Simulated observations with HARMONI on the ELT
    We present preliminary results on the potential of HARMONI, the first light integral field spectrograph for the ELT, to explore the evolution of central super...
  • Publication
    Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign
    In 2017, the Event Horizon Telescope (EHT) Collaboration succeeded in capturing the first direct image of the center of the M87 galaxy. The asymmetric ring...
  • Publication
    Catalog of Long-term Transient Sources in the First 10 yr of Fermi-LAT Data
    We present the first Fermi Large Area Telescope (LAT) catalog of long-term γ-ray transient sources (1FLT). This comprises sources that were detected on monthly...
  • News
    Caught in the act: the winds driven by supermassive black holes directly impact star formation
    Patricia Bessiere, a researcher at the Instituto de Astrofísica de Canarias (IAC), has led research which has used data from the KECK telescope in Hawaii to...