Optical and Gamma-Ray Variability Behaviors of 3C 454.3 from 2006 to 2011
Optical and Gamma-Ray Variability Behaviors of 3C 454.3 from 2006 to 2011
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2006 年至 2011 年 3C 454.3 的光学和伽马射线变异行为
DOI:
10.3847/1538-4357/aab09d
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发表时间:
2018-02
影响因子:
4.9
通讯作者:
Bai Jin Ming
中科院分区:
文献类型:
--
作者:
Fan Xu Liang;Li Shao Kun;Liao Neng Hui;Chen Liang;Liu Hong Tao;Lu Kai Xing;Yan Da Hai;Zhang Rui Yu;Guo Qian;Wu Qingwen;Bai Jin Ming
We present our photometric monitoring of a flat spectrum radio quasar 3C 454.3 at Yunnan observatories from 2006 to 2011. We find that the optical color of 3C 454.3 shows an obvious redder-when-brighter trend, which reaches a saturation stage when the source is brighter than 15.15 mag at V band. We perform a simulation with multiple values of disk luminosity and spectral index to reproduce the magnitude–color diagram. The results show that the contamination caused by the disk radiation alone is difficult to produce the observed color variability. The variability properties during the outburst in 2009 December are also compared with γ-ray data derived from the Fermi γ-ray space telescope. The flux variation of these two bands follows a linear relation with , which provides observational evidence for the external Compton process in 3C 454.3. Meanwhile, this flux correlation indicates that electron injection is the main mechanism for the variability origin. We also explore the variation of the flux ratio Fγ/FR and the detailed structures in the light curves, and discuss some possible origins for the detailed variability behaviors.
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影响因子:
64.8
作者:
C. Raiteri;M. Villata;J. Acosta-Pulido;I. Agudo;A. Arkharov;R. Bachev;G. V. Baida;E. Benítez-
通讯作者:
C. Raiteri;M. Villata;J. Acosta-Pulido;I. Agudo;A. Arkharov;R. Bachev;G. V. Baida;E. Benítez-
影响因子:
4.8
作者:
M. Janiak;M. Sikora;R. Moderski
通讯作者:
M. Janiak;M. Sikora;R. Moderski
影响因子:
4.8
作者:
Wu Qingwen;Zhang Bing;Lei Wei-Hua;Zou Yuan-Chuan;Liang En-Wei;Cao Xinwu
通讯作者:
Cao Xinwu
DOI:
10.3847/1538-4357/aa79fc
发表时间:
2017-06
期刊:
The Astrophysical Journal
影响因子:
--
作者:
J. Isler;C. Urry;P. Coppi;C. Bailyn;M. Brady;E. MacPherson;M. Buxton;Ikramul Hasan
通讯作者:
J. Isler;C. Urry;P. Coppi;C. Bailyn;M. Brady;E. MacPherson;M. Buxton;Ikramul Hasan
DOI:
--
发表时间:
2016
期刊:
The Astrophysical Journal Supplement Series
影响因子:
--
作者:
Liao Neng-Hui;Xin Yu-Liang;Fan Xu-Liang
通讯作者:
Fan Xu-Liang