Abstract
OJ 287 is a BL Lac object at redshift z = 0.306 that has shown double-peaked bursts at regular intervals of 12 yr during the last 40 yr according to previous research. Some of the AGN γ ray power density shows a white noise process, while some others shows a red noise process. Some AGN flux presents normal or log-normal distribution. The two processes have an intrinsic relationship with centre black hole emission mechanism. We present the results of the analysis of the Fermi-LAT data. We review some problems concerning the random process.
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Acknowledgements
This work is partially supported by the National Natural Science Foundation of China (NSFC 11173009, NSFC 11203007, NSFC 11178001), the Bureau of Education of Guangzhou Municipality (No. 11 Sui-Jiao-Ke (2009)), Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (GDUPS) (2009), Yangcheng Scholar Funded Scheme (10A027S), and support for Astrophysics Key Subject of Guangzhou City.
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Deng, G.G., Liu, Y., Fan, J.H. et al. Possible Lognormal Distribution of Fermi-LAT Data of OJ 287. J Astrophys Astron 35, 257–260 (2014). https://doi.org/10.1007/s12036-014-9205-0
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DOI: https://doi.org/10.1007/s12036-014-9205-0