@article{3017163,
    title = "Tidally induced outbursts in OJ 287 during 2005-2008",
    author = "Valtonen, M.J. and Nilsson, K. and Villforth, C. and Lehto, H.J. and Takalo, L.O. and Lindfors, E. and Sillanpää, A. and Hentunen, V.-P. and Mikkola, S. and Zola, S. and Drozdz, M. and Koziel, D. and Ogloza, W. and Kurpinska-Winiarska, M. and Siwak, M. and Winiarski, M. and Heidt, J. and Kidger, M. and Pursimo, T. and Wu, J.-H. and Zhou, X. and Sadakane, K. and Marchev, D. and Nissinen, M. and Niarchos, P. and Liakos, A. and Gazeas, K. and Dogru, S. and Poyner, G. and Dietrich, M. and Assef, R. and Atlee, D. and Bird, J. and Depoy, D. and Eastman, J. and Peeples, M. and Prieto, J. and Watson, L. and Yee, J. and Mattingly, A. and Ohlert, J.",
    journal = "ASTROPHYSICAL JOURNAL",
    year = "2009",
    volume = "698",
    number = "1",
    pages = "781-785",
    publisher = "INSTITUTE OF PHYSICS PUBLISHING",
    issn = "0004-637X",
    doi = "10.1088/0004-637X/698/1/781",
    abstract = "The blazar OJ 287 has produced two major optical outburst events during the years 2005-2008. These are the latest in a series of outbursts that have occurred repeatedly at 12 year intervals since early 1900s. It has been possible to explain the historical light curve fairly well by using a binary black hole model where the secondary black hole impacts the accretion disk of the primary twice during the 12 year orbital cycle. We will ask here how well does the latest light-curve fit with this model. We use a 10 million particle disk to model the accretion disk of the primary black hole. The rate of transfer of particles through the 10 Schwarzschild radius cylinder around the primary is followed. The secondary induces an inward flow through this surface. The inward flow rate is compared with the historical light curve as well as with the most recent observations reported in this paper. The observations have been carried out by using a number of small and medium size telescopes in different locations in order to ensure a dense light-curve coverage. The "inflow light curve" and the optical light curve of OJ 287 have a close resemblance to each other. It suggests that the tidally induced accretion flow is responsible for the main features of the optical light curve, with the exception of the quasi-periodic double peaks. It implies a close connection between the accretion disk and the jet where the optical synchrotron emission is presumably generated. © 2009. The American Astronomical Society. All rights reserved.."
}