Radio Polarization Properties for Blazars
Radio Polarization Properties for Blazars
复制标题
耀变体的射电偏振特性
DOI:
10.1093/pasj/60.4.707
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发表时间:
2008-08
影响因子:
2.3
通讯作者:
Zhang, Jing-Yi
中科院分区:
文献类型:
--
作者:
Huang, Yong;Tao, Jun;Guo, Qian;Gupta, Alok G.;Yuan, Yu-Hai;Liu, Yi;Su, Jiang-Bo;Zhang, Jiang-Shui;Wang, Hong-Guang;Liu, Hua;Romero, Gustavo E.;Zhang, Yong-Wei;Hua, Tong-Xu;Fan, Jun-Hui;Zhang, Jing-Yi
We used data from the University of Michigan Radio Astronomy Observatory (UMRAO) at three different bands (4.8 GHz, 8 GHz, and 14.5 GHz) to calculate the radio spectral index and the averaged polarization in a sample of 92 flat spectrum radio quasars (FSRQs). We analyzed the relationship between the polarization and other physical parameters for these objects. The results show that: 1) the polarization and its variability at high radio frequencies are higher than those at lower frequencies, 2) the degree of linear polarization is correlated with the radio spectral index, suggesting that the synchrotron mechanism is responsible for the radio emission, 3) the polarization is correlated with the core-dominance parameter for those objects for which this parameter is known, which suggests that relativistic beaming could explain some polarization characteristics of FSRQs, and 4) the polarization and flux density variabilities are correlated. These results are similar to those found for RBLs in our previous work (Fan et al. 2006). However, the distributions in the averaged polarization and the spectral index in FSRQs are different from those in RBLs.
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DOI:
10.1086/174226
发表时间:
1994-06
期刊:
The Astrophysical Journal
影响因子:
--
作者:
B. Jannuzi;Paul S. Smith;R. Elston
通讯作者:
B. Jannuzi;Paul S. Smith;R. Elston
影响因子:
0.9
作者:
H. Abrahamyan;A. Mickaelian;G. Paronyan;G. Mikayelyan
通讯作者:
H. Abrahamyan;A. Mickaelian;G. Paronyan;G. Mikayelyan
DOI:
10.1086/306799
发表时间:
1998-10
期刊:
The Astrophysical Journal
影响因子:
--
作者:
M. Aller;H. Aller;P. Hughes;G. E. Latimer
通讯作者:
M. Aller;H. Aller;P. Hughes;G. E. Latimer
DOI:
10.1086/177872
发表时间:
1996-05
期刊:
--
影响因子:
--
作者:
R. Edelson;T. Alexander;D. Crenshaw;S. Kaspi;M. Malkan;B. Peterson;R. Warwick;J. Clavel;A. Filip
通讯作者:
R. Edelson;T. Alexander;D. Crenshaw;S. Kaspi;M. Malkan;B. Peterson;R. Warwick;J. Clavel;A. Filip
影响因子:
6.5
作者:
G. Romero;S. Cellone;J. Combi;I. Andruchow
通讯作者:
G. Romero;S. Cellone;J. Combi;I. Andruchow