Evidence of jet activity from the secondary black hole in the OJ287 binary system

Mauri J. Valtonen, Staszek Zola, Alok C. Gupta +29

We report the study of a huge optical intraday flare on November 12, 2021, at 2 am UT, in the blazar OJ287. In the binary black hole model it is associated with an impact of the se…