A Research on the Gravitational Wave Radiation of OJ 287

Details A Research on the Gravitational Wave Radiation of OJ 287 A Research on the Gravitational Wave Radiation of OJ 287

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011cha%26a..35..123s&link_type=abstract

Chinese Astronomy and Astrophysics, Volume 35, Issue 2, p. 123-132.

Astronomy and Astrophysics

Astrophysics

Scientific paper

The research on quasar OJ 287 has lasted over 100 years. OJ 287 exhibits the phenomenon of periodic two-peak outbursts with the eruptive period of 12 years. Observations are rather well interpreted with the black hole binary model. In this model, the secondary black hole moves around the primary black hole and crashes against the accretion disk of the primary black hole, causing outbursts. This model reasonably explains the light curves of OJ 287 and correctly predicts the time of future outbursts. These indirectly justify the precessional effect of general relativity and the existence of gravitational waves. The massive black hole in the center of galaxy is an important kind of gravitational wave source. However, the number of the galaxies with precisely determined kinematical equations of inner components is quite small. The precise kinematic orbits of black holes are provided by the black hole binary model, so the radiation of gravitational waves can be studied on the basis of these kinematic orbits. Based on the existing work, the evolutionary relations of the radiation power and waveform of gravitational waves with time are first derived by using the post-Newtonian approximation method. According to the current progress of the detection equipment of gravitational waves, i.e., IPTA (International Pulsar Timing Array), the direct detection of gravitational waves from OJ 287 may be possible within the future decade.

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