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用功率谱方法分析PKS0735+178的光变性质 被引量:1

A Periodicity Analysis of the Light Variability of BL Lacertae Object PKS 0735+178 by Using Power Spectrum Method
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摘要 文章在先前工作的基础上,对BL Lac 天体PKS0735+178光学B波段的观测数据利用功率谱方法分别计算了BL Lac 天体PKS0735+178的光变周期. 计算结果发现:PKS0735+178 具有4.02年和1.19年的周期,这一结果不仅较好地与Smith、 Webb等人的结论相吻合,而且与先前用Jurkevich方法计算的结果几乎是一致的. 这更进一步地证实了先前的结论:即中等时标的周期在PKS0735+178的光变性质中是存在的. On the bases of the previous study, the light variability property of BL Lacertae object PKS 0735+178 in optical B-band is reanalyzed by using power spectrum method . Two periods of 4.02 years and 1.19 years for the outbursts in PKS 0735+178 are found. These results are good agreement with not only the results found by Smith et al.(1987) and Webb et al. (1988) but also previous conclusions got by Jurkevich method and further support the conclusions about periodicity of PKS 0735+178.
作者 丁世学
出处 《襄樊学院学报》 2003年第5期3-6,共4页 Journal of Xiangfan University
基金 湖北省教育厅重点项目(2003A001)
关键词 BL Lac天体 功率谱方法 光变性质 BL Lac objects Power spectrum method Light variability
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  • 1F. H. Wallinder,S. Kato,M. A. Abramowicz. Variability of the central region in active galactic nuclei[J] 1992,The Astronomy and Astrophysics Review(2):79~122
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