%0 Journal Article
%T The Long-Lasting Activity in the Flat Spectrum Radio Quasar (FSRQ) CTA 102
%A Alicja Wierzcholska
%A Felix Jankowsky
%A Jean-Philippe Lenain
%A Markus B£¿ttcher
%A Michael Zacharias
%A Stefan J. Wagner
%J Galaxies | An Open Access Journal from MDPI
%D 2019
%R https://doi.org/10.3390/galaxies7010034
%X The flat spectrum radio quasar CTA 102 ( z = 1.032 ) went through a tremendous phase of variability. Since early 2016 the gamma-ray flux level has been significantly higher than in previous years. It was topped by a four month long giant outburst, where peak fluxes were more than 100 times higher than the quiescence level. Similar trends are observable in optical and X-ray energies. We have explained the giant outburst as the ablation of a gas cloud by the relativistic jet that injects additional matter into the jet and can self-consistently explain the long-term light curve. Here, we argue that the cloud responsible for the giant outburst is part of a larger system that collides with the jet and is responsible for the years-long activity in CTA 102. View Full-Tex
%U https://www.mdpi.com/2075-4434/7/1/34