CTA 102 - Year over year receiving you
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Date
2019Author
Zacharias, Michael
Böttcher, Markus
Jankowsky, Felix
Lenain, Jean-Philippe
Wagner, Stefan J.
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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 above the quiescence level. We have interpreted the peak activity
as the ablation of a gas cloud by the relativistic jet, which can nicely account for the monthslong lightcurve in 2016 and 2017. The peak activity was in the middle of a 2-year-long highstate, which was characterized by increased fluxes and increased rms variability compared to the
previous low-states, and which was flanked by two bright flares. In this presentation, we put the
cloud-ablation scenario into the broader context of the 2-year-long high-stat
URI
http://hdl.handle.net/10394/34467https://pos.sissa.it/354/025/pdf
https://doi.org/10.22323/1.354.0025