A historical light curve of ON 231 and its periodic analysis

	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
刊名	ASTRONOMY & ASTROPHYSICS
	1995-03
卷号	295 期号:1 页码:1-10
关键词	GALAXY BL LAC OBJECTS ON 231 ACTIVE GENERAL
ISSN号	0004-6361
产权排序	第二完成单位
英文摘要	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.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	BL-LACERTAE OBJECTS ; OPTICAL VARIABILITY ; RADIO-SOURCES ; ACCRETION DISKS ; LAC OBJECTS ; OUTBURSTS
收录类别	SCI
原文出处	http://adsabs.harvard.edu/abs/1995A%26A...295....1L
语种	英语
WOS记录号	WOS:A1995QL10400005
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6899]
专题	云南天文台_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
推荐引用方式 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.