The University of Michigan Radio Astronomy Data Base. I. Structure Function Analysis and the Relation between BL Lacertae Objects and Quasi-stellar Objects
The University of Michigan Radio Astronomy Data Base. I. Structure Function Analysis and the Relation between BL Lacertae Objects and Quasi-stellar Objects
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DOI：
10.1086/171734
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
P. Hughes;H. Aller;M. Aller
中科院分区：
文献类型：
--
作者：
P. Hughes;H. Aller;M. Aller
本文对1965年以来观测良好的一组在厘米波段观测的总通量和偏振通量的河外变源进行了结构函数分析。BL Lac天体和类星体的总通量结构函数表现出非常相似的幂律斜率，这表明相同的过程是负责这两种类型的源的变化。鉴于最近成功的冲击喷流模型的无线电源的变化，有人认为，目前的工作提供了间接证据，这种冲击流的普遍存在
A structure function analysis on a well-observed group of variable extragalactic sources, monitored in total and polarized flux in the centimeter waveband since 1965, has been performed. Total flux structure functions of BL Lac objects and QSOs exhibit very similar power-law slopes, suggesting that the same processes are responsible for the variability in both types of source. In view of the recent success of the shocked-jet model for radio source variability, it is argued that the current work provides circumstantial evidence for the ubiquity of such shocked flows