Abstract
From a large volume of literature, we have collected effective observation of BL Lac object S5 0716+714 in the optical band, and constructed its long-term light curve from 1994 to 2006 AD. The light curve shows that S5 0716+714 is very active and exhibits very complicated non-sinusoidal variations. We used Period04 to analyse the period of light curve variation. Our results show that for S5 0716+714, the long-term period of variation is 3.3 yr which is consistent with the result of Raiter et al. (2003).
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Acknowledgements
This work is supported by the National Natural Science Foundation of China (U1231202, 11063004) the innovation team of gravitation theory research in Yunnan Normal University (2011CI127), the innovation team of High Energy Astrophysics Science and Technology in Yunnan Province Universities, the Science Foundation of Yunnan Province of China (2010CD016, 2012FB140).
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Fu, J., Zhang, X. & Xiong, D. Computing Optical Variable Periods of BL Lac Object S5 0716+714 with Period04 Analysis Method. J Astrophys Astron 35, 279–281 (2014). https://doi.org/10.1007/s12036-014-9212-1
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DOI: https://doi.org/10.1007/s12036-014-9212-1