A Precessing Disc in OJ287?

Preprint

18 April 1996

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.astro-ph/9604110

Abstract

Sillanp\"a\"a, {\it et al.} (1996) have demonstrated that the AGN OJ287 has intensity peaks which recur with a period of about 12 years. I suggest that this is the result of the sweeping of a precessing relativistic beam across our line of sight. In analogy to Her~X-1 and SS433, precession is attributed to the torque exerted by a companion mass on an accretion disc. Secondary maxima observed 1.2 years after two of these peaks may be evidence of nodding motion.

Keywords

PRECESSING DISC
ACCRETION DISC
SILLANP
MOTION
TORQUE
OJ287
BEAM

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Version 1, 1996-04-18, ArXiv

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