A new model for the periodic outbursts of the BL Lac object OJ287

  title={A new model for the periodic outbursts of the BL Lac object OJ287},
  author={Wen Bo Shi and Xiang Liu and Huagang Song},
  journal={Astrophysics and Space Science},
Abstract Recent observations provide strong evidence for the BL Lac object OJ287 exhibiting a 11.6±0.5 yr periodicity with a double-peaked maxima in its optical flux variations. Several models have been proposed for the optical behavior. The 2005 November outburst in OJ287 gives us a surprising result since calculation based on the periodicity was predicting such an outburst in late 2006. Here we suggest a new model, it can not only explain the optical quasi-periodic behavior, but also the… 
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