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Optical and Gamma-Ray Variability Behaviors of 3C 454.3 from 2006 to 2011
Fan, Xu-Liang1; Li SK(李少昆)2,3; Liao, Neng-Hui4; Chen, Liang5,6; Liu HT(刘洪涛)2,3; Lu KX(卢开兴)2,3; Yan DH(闫大海)2,3; Zhang, Rui-Yu5,6; Guo Q(郭倩)2,3,6; Wu, Qingwen1; Bai JM(白金明)2,3
Source PublicationASTROPHYSICAL JOURNAL
2018-03-20
Volume856Issue:1Pages:8
DOI10.3847/1538-4357/aab09d
Contribution Rank第2完成单位
Indexed BySCI
Keywordgalaxies: jets quasars: individual (3C 454.3)
Abstract

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 gamma-ray data derived from the Fermi gamma-ray space telescope. The flux variation of these two bands follows a linear relation with F-gamma proportional to F-R(1.14 +/- 0.07), 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 F-gamma/F-R and the detailed structures in the light curves, and discuss some possible origins for the detailed variability behaviors.

Funding ProjectCAS ; Peoples Government of Yunnan Province ; National Natural Science Foundation of China (NSFC)[U1431228] ; National Natural Science Foundation of China (NSFC)[11573009] ; National Natural Science Foundation of China (NSFC)[11622324] ; National Natural Science Foundation of China (NSFC)[11703093] ; National Natural Science Foundation of China (NSFC)[11703077] ; National Key Program for Science and Technology Research and Development[2016YFA0400701] ; CAS[KJZD-EW-M06] ; CAS[QYZDJ-SSW-SYS023] ; Youth Innovation Promotion Association of CAS ; Chinese Western Young Scholars Program ; Light of West China Program by CAS[Y7XB016001] ; CAS Light of West China Program
Funding OrganizationCAS ; Peoples Government of Yunnan Province ; National Natural Science Foundation of China (NSFC)[U1431228, 11573009, 11622324, 11703093, 11703077] ; National Key Program for Science and Technology Research and Development[2016YFA0400701] ; CAS[KJZD-EW-M06, QYZDJ-SSW-SYS023] ; Youth Innovation Promotion Association of CAS ; Chinese Western Young Scholars Program ; Light of West China Program by CAS[Y7XB016001] ; CAS Light of West China Program
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS IDWOS:000456422400003
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordSPACE-TELESCOPE OBSERVATIONS ; XMM-NEWTON ; EMISSION ; JETS ; RECONNECTION ; BLAZARS ; WEBT ; CONNECTION ; TURBULENCE ; DECEMBER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/18227
Collection科技处
中国科学院天体结构与演化重点实验室
Corresponding AuthorFan, Xu-Liang
Affiliation1.School of Physics, Huazhong University of Science and Technology, Wuhan 430074, People's Republic of China
2.Yunnan Observatories, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming 650011, People's Republic of China
4.Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China
5.Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030, People's Republic of China
6.University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
Recommended Citation
GB/T 7714
Fan, Xu-Liang,Li SK,Liao, Neng-Hui,et al. Optical and Gamma-Ray Variability Behaviors of 3C 454.3 from 2006 to 2011[J]. ASTROPHYSICAL JOURNAL,2018,856(1):8.
APA Fan, Xu-Liang.,Li SK.,Liao, Neng-Hui.,Chen, Liang.,Liu HT.,...&Bai JM.(2018).Optical and Gamma-Ray Variability Behaviors of 3C 454.3 from 2006 to 2011.ASTROPHYSICAL JOURNAL,856(1),8.
MLA Fan, Xu-Liang,et al."Optical and Gamma-Ray Variability Behaviors of 3C 454.3 from 2006 to 2011".ASTROPHYSICAL JOURNAL 856.1(2018):8.
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