Now showing items 1-3 of 3

    • The complex VHE and multiwavelength flaring activity of the FSRQ PKS 1510-089 in May 2015 

      Zacharias, M.; Böttcher, M.; Chakraborty, N.; Cologna, G.; Jankowsky, F. (AIP, 2017)
      The blazar PKS 1510-089 was the first of the flat spectrum radio quasar type, which had been detected simultaneously by a ground based Cherenkov telescope (H.E.S.S.) and the LAT instrument on board the Fermi satellite. ...
    • Observation of the extremely bright flare of the FSRQ 3C279 with H.E.S.S. II 

      Romoli, C.; Zacharias, M.; Meyer, M.; Ait Benkhali, F.; Jacholkowska, A. (PoS, 2017)
      In June 2015, the Flat Spectrum Radio Quasar 3C 279 underwent an extremely bright gamma-ray flare, with an increase of the flux above 100 MeV by a factor 10 in less than 1 day, revealing an intrinsic variability timescale ...
    • Target of opportunity observations of blazars with H.E.S.S. 

      Schüssler, F.; Böttcher, M.; Davids, I.D.; Zacharias, M.; Seglar-Arroyo, M. (PoS, 2017)
      The very-high-energy (VHE, E>100 GeV) extragalactic sky is dominated by blazars, a class of active galactic nuclei which show rapid variability at all wavelengths. Target of Opportunity (ToO) observations triggered by ...