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A periodicity analysis of the light curve of 3C 454.3
Li HZ(李怀珍)1,2; Xie GZ(谢光中)1,3; Zhou SB(周曙白)1,4; Liu HT(刘洪涛)1; Cha GW(茶光伟)1; Ma, L5; Mao, LS5; Li, HZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Source PublicationCHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2006
Volume6Issue:4Pages:421-429
DOI10.1088/1009-9271/6/4/04
Contribution Rank第1完成单位
Indexed BySCI
KeywordGalaxies : Individual (3c 454.3) Galaxies : Fundamental Parameters Methods : Data Analysis
AbstractWe analyzed the radio light curves of 3C 454.3 at frequencies 22 and 37 GHz taken from the database of Metsahovi Radio Observatory, and found evidence of quasi-periodic activity. The light curves show great activity with very complicated non-sinusoidal variations. Two possible periods, a very weak one of 1.57 +/- 0.12 yr and a very strong one of 6.15 +/- 0.50 yr were consistently identified by two methods, the Jurkevich method and power spectrum estimation. The period of 6.15 +/- 0.50 yr is consistent with results previously reported by Ciaramella et al. and Webb et al. Applying the binary black hole model to the central structure we found black hole masses of 1.53 x 10(9) M-. and 1.86 x 10(8) M-., and predicted that the next radio outburst is to take place in 2006 March and April.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN1009-9271
URL查看原文
Archive Date2006-09-12
WOS IDWOS:000239902800004
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordBL-LACERTAE OBJECTS ; RAY-LOUD BLAZARS ; SUPERMASSIVE BLACK-HOLES ; ACTIVE GALACTIC NUCLEI ; EXTRAGALACTIC SOURCES ; LAC OBJECTS ; RADIO-SOURCES ; VARIABILITY TIMESCALE ; EVOLUTIONARY SEQUENCE ; OPTICAL BEHAVIOR
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7014
Collection星系研究组
Corresponding AuthorLi, HZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories / Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011
2.Graduate School of Chinese Academy of Sciences, Beijing 100049
3.Yunnan Astronomical Center, Yunnan University, Kunming 650091
4.Physics Department, Yunnan University, Kunming 650091
5.Physics Department, Yunnan Normal College, Kunming 650091
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Li HZ,Xie GZ,Zhou SB,et al. A periodicity analysis of the light curve of 3C 454.3[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(4):421-429.
APA Li HZ.,Xie GZ.,Zhou SB.,Liu HT.,Cha GW.,...&Li, HZ .(2006).A periodicity analysis of the light curve of 3C 454.3.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(4),421-429.
MLA Li HZ,et al."A periodicity analysis of the light curve of 3C 454.3".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.4(2006):421-429.
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