Astrophysical: Markarian galaxies

  • Publication
    Coordinated visible and infrared monitoring of rapid variations of Markarian 501 - First results with FOVIA

    The paper presents simultaneous monitoring of the BL Lacertae object Markarian 501 obtained in the visible and near infrared using a double photometer system on...

  • Publication
    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...

  • Publication
    Multimessenger Characterization of Markarian 501 during Historically Low X-Ray and γ-Ray Activity

    We study the broadband emission of Mrk 501 using multiwavelength observations from 2017 to 2020 performed with a multitude of instruments, involving, among...

  • Publication
    Near infrared monitoring of a sample of blazars with the Carlos Sanchez Telescope.

    Results of a program of near-IR monitoring of a sample of blazars and miniblazars observed during 1990 and 1991 with the Carlos Sanchez Telescope, in Teide...

  • Publication
    Surface photometry and spectral analysis of Mk50 - A Seyfert 1 nucleus in an early type galaxy

    Markarian 50 is analyzed using V and I CCD frames and IPCS and CCD spectra, obtained in June 1985, covering the range 3200-10,000 A. It is inferred from the...

  • Publication
    Unraveling the Complex Behavior of Mrk 421 with Simultaneous X-Ray and VHE Observations during an Extreme Flaring Activity in 2013 April

    We report on a multiband variability and correlation study of the TeV blazar Mrk 421 during an exceptional flaring activity observed from 2013 April 11 to 19...