CCD photometric observations of blazars

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	CCD photometric observations of blazars
	Jia GB(贾桂斌); Ma HY(马怀玉); Cen XF(岑学奋); L, Zhili; Leng SQ(冷圣泉); Li GH(李光华)
刊名	ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES
	1995-12
卷号	114 期号:2 页码:337-339
关键词	BL Lacertae objects quasars
ISSN号	0365-0138
通讯作者	Jia, GB
产权排序	第一完成单位
英文摘要	The results of both BVRI CCD photometric monitoring and fast photometry in a certain optical waveband for 4 blazar objects and variable quasar are presented. The results show that 1) 3C 120 has a short time scale variability about 20 min, with the different shape of light curve and with different amplitude (one is 0.21+/-0.06 mag, the other is 0.053+/-0.014 mag) in different night. One day timescale variability was also observed, with a maximum decrease of the flux near 20%. 2) OJ 287 has a variability on a timescale of one day, with the maximum amplitude of changes about 0.2 mag. Since 1990, the source brightened near 0.8 mag. 3) 3C 345 is fainter during observing periods, the faintest magnitude B similar to 17.5 mag it seems variable from night to night. 4) The variability with a small amplitude about 0.1 mag appear on a timescale of about 10 months in the data of PHL 658. The values of the colour index of the blazars in each night are given.
学科主题	Astronomy & Astrophysics
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	UBVRI PHOTOPOLARIMETRIC OBSERVATIONS ; BL LACERTAE OBJECTS ; OPTICAL OBSERVATIONS ; VARIABILITY ; 3C-345 ; OJ-287 ; OJ287 ; PERIODICITY ; ULTRAVIOLET ; 3C-120
收录类别	SCI
原文出处	http://adsabs.harvard.edu/abs/1995A%26AS..114..337J
语种	英语
WOS记录号	WOS:A1995TN05000010
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/4043]
专题	云南天文台_其他
推荐引用方式 GB/T 7714	Jia GB,Ma HY,Cen XF,et al. CCD photometric observations of blazars[J]. ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,1995,114(2):337-339.
APA	贾桂斌,马怀玉,岑学奋,L, Zhili,冷圣泉,&李光华.(1995).CCD photometric observations of blazars.ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES,114(2),337-339.
MLA	贾桂斌,et al."CCD photometric observations of blazars".ASTRONOMY & ASTROPHYSICS SUPPLEMENT SERIES 114.2(1995):337-339.