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A historical light curve of ON 231 and its periodic analysis
Liu FK(刘复坤)2,3; Xie GZ(谢光中)1,2,3; Bai JM(白金明)2
发表期刊ASTRONOMY & ASTROPHYSICS
1995-03
卷号295期号:1页码:1-10
产权排序第2完成单位
收录类别SCI
关键词Galaxy On 231 Active Bl Lac Objects General
摘要All data in the B band for BL Lac object ON 231 have been compiled into a light curve from twenty-six publications, dating back to 1892; 560 values are available. The light curve shows that ON 231 is very active and exhibits very complicated non-sinusoidal variations. The light curve probably consists of three kinds of behaviours. The first may be nonperiodic or with a period at least longer than the duration of historical observations. In this case, the source seems to maintain two states of intensities, changing in mean behaviour from a bright level with about mean B magnitude 15.45 to a faint level with about 16.45 mag between 1969 and 1972. After detailed Jurkevich V-m(2) test analysis, we found that the second is periodic, with a period of 13.6 +/- 1.3 years (or 26.6 +/- 0.8 years) with outburst structure of one magnitude with total width of about 6 years. The third one is sporadic, superposing on the previous two behaviors. the periods of 0.981 +/- 0.005 years (or 2.02, 3.01,... years) and of a few days are not significant and may be spurious.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6361
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WOS记录号WOS:A1995QL10400005
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]BL-LACERTAE OBJECTS ; OPTICAL VARIABILITY ; RADIO-SOURCES ; ACCRETION DISKS ; LAC OBJECTS ; OUTBURSTS
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被引频次:70[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/6899
专题星系研究组
作者单位1.Center for Astrophysics, CCAST (World Laboratory), Beijing, China
2.Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, 650011 Kunming, China
3.Center for Nonlinear Complex System, Yunnan University, Kunming, China
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Liu FK,Xie GZ,Bai JM. A historical light curve of ON 231 and its periodic analysis[J]. ASTRONOMY & ASTROPHYSICS,1995,295(1):1-10.
APA Liu FK,Xie GZ,&Bai JM.(1995).A historical light curve of ON 231 and its periodic analysis.ASTRONOMY & ASTROPHYSICS,295(1),1-10.
MLA Liu FK,et al."A historical light curve of ON 231 and its periodic analysis".ASTRONOMY & ASTROPHYSICS 295.1(1995):1-10.
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