A comprehensive study of the 2019-2020 flare of OJ 287 in X-ray window using Swift, NuSTAR, and AstroSat

OJ 287 is a well-studied binary black hole system, that occasionally exhibits bright X-ray and optical flares. Here we present a detailed spectral study of its second brightest X-ray flare observed during 2019-2020. Various X-ray instruments were used to capture this historic moment by various PIs programs (Komossa et al.... Show more