A Precessing Disc in OJ287?
Astrophysics
2007-05-23 v1
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.
Cite
@article{arxiv.astro-ph/9604110,
title = {A Precessing Disc in OJ287?},
author = {J. I. Katz},
journal= {arXiv preprint arXiv:astro-ph/9604110},
year = {2007}
}
Comments
9 pp., tex, 0 figures