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1 results

  • A Variability Study of Long-term Optical Data of OJ 287

  • Y. Liu, J. H. Fan, H. G. Wang, G. G. Deng
  • Journal:
    Proceedings of the International Astronomical Union / Volume 8 / Issue S290 / August 2012
    Published online by Cambridge University Press:
    21 February 2013, pp. 269-270
    Print publication:
    August 2012
    • Article
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  • In this paper, we investigated the possible exponential decays in the long term optical light curve of the BL Lac {OJ 287}. We developed a method that can be used to decomposing a light curve into a linear combination of exponential decays. The decomposing shows that the decay time scales range from ~ 103.6 to ~ 10−4 days. The power spectra has frequency-dependent power-law with slop ~ 0.5, and the peak of power is at the time scale of decay on ~ 160 days.