Behaviour of the Blazar CTA 102 during Two Giant Outbursts
V. M. LarionovAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaSvetlana G. JorstadAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaAlan P. MarscherInstitute for Astrophysical Research, Boston University, Boston, MA 02215, USAPaul S. SmithSteward Observatory, University of Arizona, Tucson, AZ 85721, USAС. С. СавченкоAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaD. A. MorozovaAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaT. S. GrishinaAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaE. N. KopatskayaAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaL. V. LarionovaAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaЕ. Г. ЛарионоваAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaAnna MokrushinaAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaI. S. TroitskyAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaYulia TroitskayaAstronomical Institute, Saint Petersburg State University, 198504 Saint Petersburg, RussiaГ. А. БорманCrimean Astrophysical Observatory, Nauchny, Crimea 298409, Russia
2017en
ABI
Annotatsiya
Blazar CTA 102 underwent exceptional optical and high-energy outbursts in 2012 and 2016–2017. We analyze its behaviour during these events, focusing on polarimetry as a tool that allows us to trace changes in the physical conditions and geometric configuration of the emission source close to the central black hole. We also use Fermi γ -ray data in conjunction with optical photometry in an effort to localize the origin of the outbursts.
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