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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.
发表期刊CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS
2006
卷号6期号:4页码:421-429
DOI10.1088/1009-9271/6/4/04
产权排序第1完成单位
收录类别SCI
关键词Galaxies : Individual (3c 454.3) Galaxies : Fundamental Parameters Methods : Data Analysis
摘要We 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.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN1009-9271
URL查看原文
归档日期2006-09-12
WOS记录号WOS:000239902800004
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BL-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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文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7014
专题星系研究组
通讯作者Li, HZ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, Kunming 650011, Peoples R China.
作者单位1.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
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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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