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

Published online by Cambridge University Press:  21 February 2013

Y. Liu ,
J. H. Fan ,
H. G. Wang  and
G. G. Deng
Y. Liu
Affiliation:
Center for Astrophysics, Guangzhou University, 510006, China email: [email protected]
J. H. Fan
Affiliation:
Center for Astrophysics, Guangzhou University, 510006, China email: [email protected]
H. G. Wang
Affiliation:
Center for Astrophysics, Guangzhou University, 510006, China email: [email protected]
G. G. Deng
Affiliation:
Center for Astrophysics, Guangzhou University, 510006, China email: [email protected]
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Abstract

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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.

Keywords

QuasarOJ 287time series analysismethodexponential decay
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 8 , Symposium S290: Feeding Compact Objects: Accretion on All Scales , August 2012 , pp. 269 - 270
Copyright
Copyright © International Astronomical Union 2013

References

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