Microvariability of the blazar OJ 287

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	Microvariability of the blazar OJ 287
	Jia GB(贾桂斌); Cen XF(岑学奋); Ma HY(马怀玉); Wang JC(王建成)
刊名	ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
	1998-05
卷号	129 期号:3 页码:569-575
关键词	BL lacertae objects, individual, OJ 287 galaxies, active
ISSN号	0365-0138
通讯作者	Jia, GB
产权排序	第一完成单位
英文摘要	Results of BVRI CCD photometric monitoring and fast photometry in the I band for the blazer OJ 287 in 1994-1995 are presented. The predicted outburst of the blazer had been observed, the maximum appeared in 1994 November, after that, the luminosity decreased by 1.6 mag for about three months and dropped to near the level in 1994 April. Rapid variations with timescales of minutes, hours and one day were observed in our observations, with small amplitude. The amplitude of the most rapid variations (minutes) is in the range of 0.(m)043-0.(m)12. The results of the statistical analysis of the fast photometry data are as follows. In five nights out of six rapid variability appeared in the sampling interval, which ranged from 3.4 minutes to 6.5 minutes, with a rms amplitude of flux variations of 1.70%-2.3%. The rapid variability can be explained by the model of shocks within turbulent jet or of vortices and magnetic flux tubes on accretion disk.
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
收录类别	SCI
原文出处	http://aas.aanda.org/articles/aas/abs/1998/09/ds6919/ds6919.html
语种	英语
WOS记录号	WOS:000073690800014
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4023]
专题	云南天文台_其他
作者单位	Yunnan Observatory, Academia Sinica, P.O. Box 110, Kunming, Yunnan, P.R. China
推荐引用方式 GB/T 7714	Jia GB,Cen XF,Ma HY,et al. Microvariability of the blazar OJ 287[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1998,129(3):569-575.
APA	Jia GB,Cen XF,Ma HY,&Wang JC.(1998).Microvariability of the blazar OJ 287.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,129(3),569-575.
MLA	Jia GB,et al."Microvariability of the blazar OJ 287".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 129.3(1998):569-575.