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Time-domain behavior of blazar OJ 287 and the binary supermassive black hole conjecture

Stefano Ciprini, Mauri J Valtonen, Staszek Zola, Arti Goyal, Pauli Pihajoki
2017 Proceedings of 7th International Fermi Symposium — PoS(IFS2017)   unpublished

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The proper understanding of blazar variability at the various electromagnetic spectral bands is one goal of multifrequency astrophysics. In this frame a peculiar and controversial phenomenology is the periodicity, postulated for long-term radio or optical flux light curves of about a dozen of blazars. The well-known BL Lac object OJ 287 (PKS 0851+202, S3 0851+20, PG 0851+202, z = 0.306) is not only a high-variable, peculiar, extragalactic source with hints for approximatively cyclical optical
more » ... tbursts, but it also represents a case of substantial intensive and extensive (longterm) multifrequency observations. This rich database allow us a deeper analysis based on a wide range of variability timescales with some recent results that are highlighted here. 7th Fermi Symposium 2017
doi:10.22323/1.312.0041 fatcat:edwnzw2vtzh3fozffzqqtm4mai
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Stefano Ciprini, Mauri J Valtonen, Staszek Zola, Arti Goyal, Pauli Pihajoki. "Time-domain behavior of blazar OJ 287 and the binary supermassive black hole conjecture." Proceedings of 7th International Fermi Symposium — PoS(IFS2017) (2017)