We examined the behaviour of blazar OJ 287 based on 12 year observation data in optic, UV, X-ray, and gamma ray. The optical, UV, and X-ray data of OJ 287 were obtained from Swift archive, which provide more or less simultaneous optical–X-ray observations, while gamma ray data were obtained from Fermi archive. The occurrence of outburst episode in 2007 can be confirmed in Swift/UVOT data. In addition, episodes of significant brightening (possibly the outburst(s) of this decade) can also be seen in 2015–2016 and 2016–2017. Long-term flux variability in gamma ray and X-ray data is not always concurrent with those of optical and UV. Interestingly, the high peaks appeared almost simultaneous in optic, UV and X-ray in the episode of brightening in 2016–2017. X-ray spectral fittings show that non-thermal process predominates most of the X-ray spectra. Simultaneous optical–X-ray spectral fittings show the spectral evolution and suggest the combination of thermal and non-thermal component before brightening episode in 2015–2016. We obtained gamma ray spectra with broader peak at rather high frequency compared to that expected from simple synchrotron self-Compton mechanism. During brightening 2016–2017, the optical–X-ray fluxes are higher compared to those other periods. The shape of the X-ray and gamma ray spectra also have inverted trend than those of other periods.

我们根据12年光学，紫外线，X射线和伽马射线观察数据对blazar OJ 287的行为进行了检查。OJ 287的光学，紫外线和X射线数据是从Swift档案中获得的，它提供或多或少的同时光学X射线观察，而伽马射线数据则是从Fermi档案中获得的。可以在Swift中确认2007年爆发事件的发生/ UVOT数据。此外，在2015–2016和2016–2017中也可以看到明显增亮的事件（可能是这十年的爆发）。伽马射线和X射线数据的长期通量变化并不总是与光学和紫外线的变化并发。有趣的是，在2016-2017年的增亮阶段，光学，紫外线和X射线的高峰几乎同时出现。X射线光谱拟合表明，非热过程主导了大多数X射线光谱。同时进行的光学X射线光谱拟合显示了光谱演化，并建议在2015-2016年增亮之前将热和非热成分组合在一起。与简单的同步加速器自康普顿机制所预期的相比，我们在相当高的频率下获得了具有更宽峰值的伽马射线光谱。在2016-2017年辉煌期间，与其他时期相比，X射线通量更高。X射线和γ射线谱的形状也比其他时期的趋势相反。