Browsing by Author "Zacharias, Michael"

Now showing items 1-3 of 3

    • The ablation of gas clouds by blazar jets 

      Heil, Jonathan; Zacharias, Michael (EDP Sciences, 2020)
      Context. Flaring activity in blazars can last for vastly different timescales, and it may be the result of density enhancements in the jet flow that result from the intrusion of an interstellar cloud into the jet. Aims. ...

    • CTA 102 - Year over year receiving you 

      Zacharias, Michael; Böttcher, Markus; Jankowsky, Felix; Lenain, Jean-Philippe; Wagner, Stefan J. (Sissa Medialab, 2019)
      The FSRQ CTA 102 (z=1.032) has been tremendously active over the last few years. During its peak activity lasting several months in late 2016 and early 2017, the gamma-ray and optical fluxes rose by up to a factor 100 ...

    • Unraveling the complex nature of the very high-energy γγ-ray blazar PKS 2155-304 

      Wierzcholska, Alicja; Zacharias, Michael; Jankowsky, Felix; Wagner, Stefan (Sissa Medialab, 2019)
      PKS 2155-304 is a blazar located in the Southern Hemisphere, monitored with the High Energy Stereoscopic System (H.E.S.S.) at very high energy (VHE, E>100 GeV) γ rays every year since 2002. Thanks to the large data set ...