Astrofísicas: Objetos BL Lacertae

  • Publicación
    Simultaneous Multiwavelength Observations of Markarian 421 During Outburst
    We report on the results of two coordinated multiwavelength campaigns that focused on the blazar Markarian 421 during its 2006 and 2008 outbursts. These...
  • Publicación
    Simultaneous Multiwavelength Observations of the Blazar 1ES 1959+650 at a Low TeV Flux
    We present the results from a multiwavelength campaign on the TeV blazar 1ES 1959+650, performed in 2006 May. Data from the optical, UV, soft- and hard-X-ray...
  • Publicación
    Spectral Energy Distribution of Markarian 501: Quiescent State Versus Extreme Outburst
    The very high energy (VHE; E > 100 GeV) blazar Markarian 501 (Mrk 501) has a well-studied history of extreme spectral variability and is an excellent laboratory...
  • Publicación
    Spectral energy distribution of Palomar-Green BL Lacertae objects.
    Optical spectroscopy of three recently discovered BL Lacs (PG 1246+586, PG 1424+240 and PG 1437+398) in the Palomar-Green optical survey is presented. The three...
  • Publicación
    Spectroscopy of 10 γ-Ray BL Lac Objects at High Redshift
    We present optical spectra with high signal-to-noise ratio of 10 BL Lac objects detected at GeV energies by the Fermi satellite (3FGL catalog), which previous...
  • Publicación
    Statistical redshift of the very-high-energy blazar S5 0716+714
    Context. Blazars are the most numerous class of very-high-energy (VHE; E > 100 GeV) gamma-ray emitters. At present, measured redshifts are available only for...
  • Publicación
    Study of the variable broadband emission of Markarian 501 during the most extreme Swift X-ray activity
    Context. Markarian 501 (Mrk 501) is a very high-energy (VHE) gamma-ray blazar located at z = 0.034, which is regularly monitored by a wide range of multi...
  • Publicación
    Suzaku and Multi-Wavelength Observations of OJ 287 during the Periodic Optical Outburst in 2007
    Suzaku observations of the blazar OJ 287 were performed in 2007 April 10-13 and November 7-9. They correspond to a quiescent and a flaring state, respectively...
  • Publicación
    Synchrotron emission from the blazar PG 1553+113. An analysis of its flux and polarization variability
    In 2015 July 29-September 1, the satellite XMM-Newton pointed at the BL Lac object PG 1553+133 six times, collecting data for 218 h. During one of these epochs...