Auto- and cross-correlation analysis of the QSOs radio wave intensity

被引：25
|
作者：
Demin, S. A. [1 ,2 ]
Panischev, O. Yu [1 ,2 ]
Nefedyev, Yu A. [1 ,2 ]
机构：
[1] Kazan Fed Univ, Inst Phys, Kazan 420008, Russia
[2] Kazan Fed Univ, Engelhardt Astron Observ, St Observ 422526, Zelenodolski Re, Russia
来源：
17TH RUSSIAN YOUTH CONFERENCE ON PHYSICS AND ASTRONOMY (PHYSICA.SPB/2014) | 2015年 / 661卷
关键词：
D O I：
10.1088/1742-6596/661/1/012003
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We discuss here the Flicker-Noise Spectroscopy approach to studying astrophysical systems, for example the radio wave intensity of quasi-stellar object (QSO) 1641+399 and BL Lacertae (BL Lac) 0215+015 in different frequency ranges. The presented method allows to parameterize the study dynamics using a short set of characteristics. The considering sources have a significant differences in manifesting the non-stationary effects, dynamical intermittency and synchronization. The radio wave intensity dynamics of the BL Lac 0215+015 is characterized by well-defined set of natural frequencies, persistent behavior with low effects of non-stationarity and high level of frequency-phase synchronization. For dynamics of the QSO 1641+399 reverse occurs including the asymmetrical structure of cross-correlator. Our findings show that using the flicker-noise spectroscopy approach to studying astrophysical objects allows to carry out the more detail analysis of their behavior and evolution.
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页数：6
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