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arXiv · 1405.4636

Optical Monitoring of the Seyfert Galaxy NGC 4151 and Possible Periodicities in the Historical Light Curve

Di-Fu Guo·Shao-Ming Hu·Jun Tao·Hong-Xing Yin·Xu Chen·Hong-Jian Pan
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Abstract

We report B, V, and R band CCD photometry of the Seyfert galaxy NGC 4151 obtained with the 1.0-m telescope at Weihai Observatory of Shandong University and the 1.56-m telescope at Shanghai Astronomical Observatory from 2005 December to 2013 February. Combining all available data from literature, we have constructed a historical light curve from 1910 to 2013 to study the periodicity of the source using three different methods (the Jurkevich method, the Lomb-Scargle periodogram method and the Discrete Correlation Function method). We find possible periods of P_1=4\pm0.1, P_2=7.5\pm0.3 and P_3=15.9\pm0.3 yr.

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Di-Fu Guo, Shao-Ming Hu, Jun Tao, Hong-Xing Yin, Xu Chen, Hong-Jian Pan. 2014-05-19. Optical Monitoring of the Seyfert Galaxy NGC 4151 and Possible Periodicities in the Historical Light Curve. https://doi.org/10.1088/1674-4527/14/8/003

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