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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
Source PublicationASTRONOMY & ASTROPHYSICS
1995-03
Volume295Issue:1Pages:1-10
Contribution Rank第2完成单位
Indexed BySCI
KeywordGalaxy On 231 Active Bl Lac Objects General
AbstractAll 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.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6361
URL查看原文
WOS IDWOS:A1995QL10400005
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordBL-LACERTAE OBJECTS ; OPTICAL VARIABILITY ; RADIO-SOURCES ; ACCRETION DISKS ; LAC OBJECTS ; OUTBURSTS
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Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/6899
Collection星系研究组
Affiliation1.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
Recommended Citation
GB/T 7714
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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