摘要
从文献中收集了BL Lac天体PKS 2155-304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PKS 2155-304在光学R波段的变化周期,发现PKS 2155-304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。
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
出处
《云南师范大学学报（自然科学版）》
2012年第6期1-5,共5页
Journal of Yunnan Normal University:Natural Sciences Edition
基金
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
