Observations of the Blazar OJ 287, 1957-1974: Further Evidence for the Precessing Binary Black Hole Model

Details Observations of the Blazar OJ 287, 1957-1974: Further Evidence for the Precessing Binary Black Hole Model Observations of the Blazar OJ 287, 1957-1974: Further Evidence for the Precessing Binary Black Hole Model

Oct 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aspc..373..243r&link_type=abstract

The Central Engine of Active Galactic Nuclei, ASP Conference Series, Vol. 373, proceedings of the conference held 16-21 October,

Computer Science

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Scientific paper

Digitized photographic plates from the Sonneberg Observatory were used to obtain V magnitudes of OJ 287 for the interval 1957-1974. These data were compared with three distinct binary black hole models of OJ 287, one with a constant period, and two with precessing orbits 937.5 and 38.8 degrees per period). Our data agree best with the 38.8 degrees precession model. From this we predict that the next outburst will be on September 16, 2007, which will provide indirect evidence for the emission of gravitational radiation from the system.

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