Searching for quasi periodic oscillations in optical and $\gamma$-ray emissions $\&$ black hole mass estimation of blazar ON 246

Ajay Sharma, Raj Prince, Debanjan Bose

We report the detection of a potential quasi-periodic signal with a period of $\sim 2$ years in the blazar ON 246, based on Fermi-LAT ($\gamma$-rays) and ASAS-SN (optical) observations s…