Astrophysical: Jets

  • Publication
    The broad-band properties of the intermediate synchrotron peaked BL Lac S2 0109+22 from radio to VHE gamma-rays
    The Major Atmospheric Gamma-ray Imaging Cherenkov (MAGIC) telescopes observed S2 0109+22 in 2015 July during its flaring activity in high-energy gamma-rays...
  • Publication
    The Broadband Energy Distribution of the Misaligned Gamma-Ray Blazar PKS 0521-365
    Simultaneous UV and X-ray observations of the blazar PKS 0521-365 are combined with radio, IR, optical, and y-ray data taken at different epochs to study the...
  • Publication
    The central parsecs of M87: jet emission and an elusive accretion disc
    We present the first simultaneous spectral energy distribution (SED) of M87 core at a scale of 0.4 arcsec ( ˜ 32 pc) across the electromagnetic spectrum. Two...
  • Publication
    The complex variability of blazars: time-scales and periodicity analysis in S4 0954+65
    Among active galactic nuclei, blazars show extreme variability properties. We here investigate the case of the BL Lac object S4 0954+65 with data acquired in...
  • Publication
    The complex, dusty narrow-line region of NGC 4388: gas-jet interactions, outflows and extinction revealed by near-IR spectroscopy
    We present Gemini/GNIRS (Gemini Near-Infrared Spectrograph) spectroscopy of the Seyfert 2 galaxy NGC 4388, with simultaneous coverage from 0.85 to 2.5 μm...
  • Publication
    The curious activity in the nucleus of NGC 4151: jet interaction causing variability?
    A key characteristic of many active galactic nuclei (AGNs) is their variability, but its origin is poorly understood, especially in the radio domain. Williams...
  • Publication
    The dual nature of blazar fast variability: Space and ground observations of S5 0716+714
    Blazar S5 0716+714 is well-known for its short-term variability, down to intraday time-scales. We here present the 2-min cadence optical light curve obtained by...
  • Publication
    The dust masses of powerful radio galaxies: clues to the triggering of their activity
    We use deep Herschel Space Observatory observations of a 90 per cent complete sample of 32 intermediate-redshift 2Jy radio galaxies (0.05 z 0.7) with strong...
  • Publication
    The FR II Broad-Line Seyfert 1 Galaxy: PKS J1037-2705
    In this article we demonstrate that PKS J1037-2705 has a weak accretion flow luminosity, well below the Seyfert 1/QSO dividing line, weak broad emission lines...