Astrophysical: Blazars

  • 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
    Multiwavelength Observations of the Blazar VER J0521+211 during an Elevated TeV Gamma-Ray State
    We report on a long-lasting, elevated gamma-ray flux state from VER J0521+211 observed by VERITAS, MAGIC, and Fermi-LAT in 2013 and 2014. The peak integral flux...
  • 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
    Optical jets in blazars and radio galaxies.
    The authors have used HST/WFPC2 to observe the optical jet of the two extragalactic radio sources PKS 0521-365 (z = 0.055) and 3C 371 (z = 0.050). For PKS 0521...
  • Publication
    Optical photometry and polarimetry and infrared photometry of 3C 345 in outburst
    We present V-band CCD photometry, UBVRI photopolarimetry, and near simultaneous JHK photometry of 3C 345 during a renewed outburst in spring of 1992, which...
  • Publication
    Optical spectrophotometry of blazars
    We present optical spectrophotometric observations for 50 blazars obtained in 13 different campaigns over a 7 year period. The spectral flux distribution is...
  • Publication
    Recent outburst in Markarian 421.
    The authors present preliminary results of optical and infrared observations of Mk 421, during an outburst. Some of these observations are simultaneous in both...
  • Publication
    Simultaneous UBVRI photopolarimetric observations of blazars. II
    Results are presented from simultaneous UBVRI photopolarimetric observations of eight blazars at the 2.56-m Nordic Optical Telescope during winter 1991. In 3C...
  • Publication
    Spectropolarimetric observations of OJ 287 during outburst.
    Not Available