An X-ray periodicity of $\sim$1.8 hours in a narrow-line Seyfert 1 galaxy Mrk 766

Peng Zhang, Peng-fei Zhang, Jing-zhi Yan +2

In the narrow-line Seyfert 1 galaxy Mrk 766, a Quasi-Periodic Oscillation (QPO) signal with a period of $\sim 6450$ s is detected in the \emph{XMM-Newton} data collected on 2005 May…