| BLLac天体PKS2155-304的光变周期分析 |
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| 引用本文： | 毕雄伟,张青友,和万全.BLLac天体PKS2155-304的光变周期分析[J].云南师范大学学报(自然科学版),2012(6):1-5. |
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| 作者姓名： | 毕雄伟 张青友 和万全 |
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| 作者单位： | 红河学院理学院 |
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| 基金项目： | 云南省教育厅科研基金项目(09Y0414);红河学院科研基金重点项目(10XJZ105)资助 |
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| 摘 要： | 从文献中收集了BLLac天体PKS2155-304在光学R波段从2004年至2011年共6310个观测数据点，获得了天体光学R波段的变化曲线。用Jurkevich方法分析了PKS2155-304在光学R波段的变化周期，发现PKS2155-304在光学R波段存在约314d（0．86a）的中短时标光变周期，用双黑洞系统的轨道驱动引起喷流的非弹道螺旋运动模型解释了天体存在的中短时标光变现象。
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| 关 键 词： | BL Lac天体 PKS 2155-304 周期分析 Jurkevich方法 喷流螺旋运动模型 |
A Study of the Light Curve Period of BL Lac Object PKS 2155-304 |
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| BI Xiong-wei,ZHANG Qing-you,HE Wan-quan.A Study of the Light Curve Period of BL Lac Object PKS 2155-304[J].Journal of Yunnan Normal University (Natural Sciences Edition),2012(6):1-5. |
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| Authors: | BI Xiong-wei ZHANG Qing-you HE Wan-quan |
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| Institution: | (College of Science,Honghe University,Mengzi 661100,China) |
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| Abstract: | In this paper, we have collected the 6310 data of BL Lac object PKS 2155-304 on op- tical R band from the literatures, and constructed its long-term light curve of R band from 2004 to 2011. Using the Jurkevich method, we have been studying the optical R band period of PKS 2155-304 object. We found that the light curve variability period of BL Lac PKS 2155-304 on R band is about 314 days （0. 86 years）. For the period of 314 days on R band, the model of non- ballistic helical motion driven by the orbital motion in a binary black hole system （BBHS） is well model for explaining the periodic variabilitv of PKS 2155-304 |
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| Keywords: | BL Lac objects PKS 2155-304 Periodic analysis Jurkevich method Model of jethelical motion |
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