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11.11. OJ 287 – a system with a binary black hole

Published online by Cambridge University Press:  25 May 2016

Harry J. Lehto*
Affiliation:
Tuorla Observatory, Turku University, Väisäläntie 20, FI-21500 Piikkiö, FINLAND

Extract

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OJ 287 is a blazar type active galaxy. The historical light curve shows outbursts occurring at quasi-regular intervals. These can be modeled by a secondary black hole interacting with the accretion disk of the primary black hole. We present results of wavelet analysis of the recent light curve of OJ 287, including the outbursts in 1994 and 1995.

Type
Part III. Black Holes and Central Activity
Copyright
Copyright © Kluwer 1998 

References

Gabuzda, D.C., Wardle, J.F.C. and Roberts, D.H., 1989, Ap.J., 336, L59.CrossRefGoogle Scholar
Lehto, H.J. 1996, “Wavelets in Unevenly Spaced Data: OJ 287 light curve” in Statistical Challenges in Modern Astronomy II, eds. Babu, G.J. and Feigelson, E.D., p. 423.Google Scholar
Lehto, H.J. and Valtonen, M.J. 1996, Ap.J., 460, 207. (LV96).CrossRefGoogle Scholar
Sundelius, B., Wahde, M., Lehto, H.J. and Valtonen, M.J., 1997, Ap.J., 484, 180.CrossRefGoogle Scholar
Valtonen, M.J. and Lehto, H.J., 1997, Ap.J., 460, 207. (VL97).Google Scholar