We report the detection of a quasi-periodic oscillation (QPO) in the optical \(R\)-band light curve of the blazar S5 0716+714 spanning approximately 32 years. Using both the Weighted Wavelet Z-transform and Lomb-Scargle Periodogram methods, we identified a prominent QPO of \(1060\pm 50\) days at a 5\(\sigma \) confidence level against the red noise background. Our findings align well with previous studies. We introduce a supermassive binary black hole (SMBBH) model to account for the observed QPO and estimate the binary system’s Keplerian orbit to be 0.0053 parsec, indicating S5 0716+714 as a notable subject for upcoming nanohertz gravitational wave studies.

我们报告了在耀变体 S5 0716+714 的光学R波段光曲线中检测到的准周期振荡 (QPO)，时间跨度约为 32 年。使用加权小波 Z 变换和 Lomb-Scargle 周期图方法，我们在红噪声背景下以 5 \(\sigma \)置信水平确定了\(1060\pm 50\)天的显着 QPO 。我们的发现与之前的研究非常吻合。我们引入了超大质量双星黑洞（SMBBH）模型来解释观测到的 QPO，并估计双星系统的开普勒轨道为 0.0053 秒差距，表明 S5 0716+714 是即将进行的纳赫兹引力波研究的一个值得注意的主题。