Study on Gravitational Wave Radiation from OJ 287

Research on quasar OJ 287 has been lasted more than 100 years.It presents the phenomenon of periodic outburst with two peaks.Its period is 12 years.The better model to explain the observed phenomenon is the binary black hole model in which a black hole moves around a primary black hole.The secondary black hole crashed the main accretion disk,leading to the outbursts.Based on this model,the light curves of OJ 287 are reasonably explained and the future outbursts are correctly predicted.These indirectly prove that the precession effect of general relativity and the existence of gravitational waves. The massive black hole of binary in the center of galaxy is a very important class of gravitational wave source.However,it is still very difficult to accurately determine the kinematic equations of the internal components in galaxies.Because this model provides a precise track of the secondary black hole,the gravitational waves can be studied.Based on the existing works,it is the first time for us to deduce the temporal evolutions of radiation power and waveform of gravitational waves by using the post-Newtonian approximation method.According to the current progress of IPTA(International Pulsar Timing Array),this detection equipment is possible to directly detect gravitational waves from OJ 287 in the next few years.