Optical monitoring of the Seyfert galaxy NGC 4151 and possible periodicities in its historical light curve

Optical monitoring of the Seyfert galaxy NGC 4151 and possible periodicities in its historical light curve
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塞弗特星系 NGC 4151 的光学监测及其历史光变曲线中可能的周期性

DOI:
10.1088/1674-4527/14/8/003
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发表时间:
2014-05
影响因子:
1.8
通讯作者:
Pan, Hong-Jian
Pan, Hong-Jian
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Tao, Jun;Yin, Hong-Xing;Chen, Xu;Pan, Hong-Jian

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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 P1 = 4 ± 0.1, P2 = 7.5 ± 0.3 and P3 = 15.9 ± 0.3 yr.
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