The long-lasting activity in the Flat Spectrum Radio Quasar (FSRQ) CTA 102
- 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.
| Author: | Michael ZachariasGND, Markus BöttcherORCiDGND, Felix JankowskyGND, Jean-Philippe LenainORCiDGND, Stefan WagnerGND, Alicja WierzcholskaORCiDGND |
|---|---|
| URN: | urn:nbn:de:hbz:294-67430 |
| DOI: | https://doi.org/10.3390/galaxies7010034 |
| Parent Title (English): | Galaxies |
| Publisher: | MDPI |
| Place of publication: | Basel |
| Document Type: | Article |
| Language: | English |
| Date of Publication (online): | 2019/11/19 |
| Date of first Publication: | 2019/02/28 |
| Publishing Institution: | Ruhr-Universität Bochum, Universitätsbibliothek |
| Tag: | active galactic nuclei; blazar modeling; blazar variability; multi-wavelength |
| Volume: | 7 |
| Issue: | 1, Artikel 34 |
| First Page: | 34-1 |
| Last Page: | 34-9 |
| Institutes/Facilities: | Institut für Theoretische Physik IV, Research Department Plasmas with Complex Interactions, Ruhr Astroparticle and Plasma Physics Center |
| open_access (DINI-Set): | open_access |
| faculties: | Fakultät für Physik und Astronomie |
| Licence (English): |  Creative Commons - CC BY 4.0 - Attribution 4.0 International |
