Gupta, Alok C.; Kushwaha, Pankaj; Valtonen, Mauri J.; Savchenko, Sergey S.; Jorstad, Svetlana G.; Imazawa, Ryo; Wiita, Paul J.; Gu, Minfeng; Marscher, Alan P.; Zhang, Zhongli; Bachev, Rumen; Borman, G. A.; Gaur, Haritma; Grishina, T. S.; Hagen-Thorn, V. A.; Kopatskaya, E. N.; Larionov, V. M.; Larionova, E. G.; Larionova, L. V.; Morozova, D. A.; Nakaoka, T; Strigachev, A; Troitskaya, Yulia V.; Troitsky, I. S.; Uemura, M.; Vasilyev, A. A.; Weaver, Z. R.; Zhovtan, A. V.
(Astrophysical Journal Letters, 2023-11)
We study the optical flux and polarization variability of the binary black hole blazar OJ 287 using quasi simultaneous observations from 2015 to 2023 carried out using telescopes in the USA, Japan, Russia, Crimea, ...