Blazar 3C454.3长期偏振变化的周期分析  

Long-Term Polarized Variability of Blazar 3C454.3

作　　者：袁聿海[1] 邓文婷[1] 何唐梅[1] 

机构地区：[1]广州大学实验中心,广东广州510006

出　　处：《吉首大学学报（自然科学版）》2012年第5期56-58,共3页Journal of Jishou University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(10633010)

摘　　要：针对Blazar 3C454.3的长期偏振变化现象,采用Power Spectrum方法分析其变化周期,结果显示其变化周期是τ1=17.9a,τ2=6.9a和τ3=3.9a.利用bin=10d得到各个分段的谱指数和平均偏振度,发现两者之间存在一定的相关性.Based on the long-term polarized variability of Blazar 3C4543, the authors use the power spectrum to analyze its periodicity,and obtain that the periodicities are τ1 =17.9 year,τ2 =6.9 year and τ3 = 3.9 year. Using bin= 10 days, the author obtain the spectral index and averaged polarization, and get weak correlation between them.

关 键 词：BLAZAR 单个 功率谱 偏振变化 

分 类 号：P142[天文地球—天体物理]