Rapid optical variability of gamma-raye-loud blazars

	Rapid optical variability of gamma-raye-loud blazars
	Dai BZ(戴本忠)1,2,3,4 ; Xie GZ(谢光中)1,2,3,4 ; Li KH(李开华)1,2 ; Zhou SB(周曙白)1,2,3,4 ; Liu WW(刘威卫)1,2 ; Jiang ZJ(姜泽军)1,4
刊名	ASTRONOMICAL JOURNAL
	2001-12
卷号	122 期号:6 页码:2901-2912
关键词	BL Lacertae objects : general galaxies : active galaxies : photometry quasars : general
ISSN号	0004-6256
通讯作者	Xie, GZ (reprint author), Chinese Acad Sci, Yunnan Astron Observ, POB 110, Kunming 650011, Peoples R China.
产权排序	第一完成单位
英文摘要	We present the optical (B, V, and R) photometry for nine GeV and/or TeV gamma -ray blazars, which were observed from 2000 through 2001 with the 1 m telescope at Yunnan Astronomical Observatory. The GeV gamma -ray-loud source PKS 1510-089 was very active during our observation period, showing an apparent variation of 2.0 mag within 41 minutes in the R band. This is the most violently rapid variability in our optical monitoring program since 1982. Some physics parameters are calculated for this source, namely, the emission size, Doppler factor delta, the efficiency (eta) for conversion of accreted matter into energy, and luminosity. An eta = 62.2 was obtained, strongly implying that relativistic beaming is responsible for the rapid variability of the gamma -ray-loud source. The influence of variable seeing conditions on the observations was investigated. There is a weak correlation between the observed variability and the local seeing conditions for the object 1ES 2344+51.4.
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 ; ACTIVE GALAXY MARKARIAN-421 ; HIGH-ENERGY FLARE ; INTRADAY VARIABILITY ; X-RAY ; COMPARISON STARS ; PHOTOMETRIC SEQUENCES ; EXTRAGALACTIC SOURCES ; GALACTIC NUCLEI ; VRI PHOTOMETRY
收录类别	SCI
原文出处	http://iopscience.iop.org/1538-3881/122/6/2901/
语种	英语
WOS记录号	WOS:000172932200008
公开日期	2016-05-03
内容类型	期刊论文
源URL	[http://ir.ynao.ac.cn/handle/114a53/6931]
专题	云南天文台_星系研究组
作者单位	1.Yunnan Astronomical Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming 650011, China 2.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, China 3.United Laboratory of Optical Astronomy, Chinese Academy of Sciences, Beijing, China 4.Yunnan Astrophysics Center, Yunnan University, Kunming 650091, China
推荐引用方式 GB/T 7714	Dai BZ,Xie GZ,Li KH,et al. Rapid optical variability of gamma-raye-loud blazars[J]. ASTRONOMICAL JOURNAL,2001,122(6):2901-2912.
APA	Dai BZ,Xie GZ,Li KH,Zhou SB,Liu WW,&Jiang ZJ.(2001).Rapid optical variability of gamma-raye-loud blazars.ASTRONOMICAL JOURNAL,122(6),2901-2912.
MLA	Dai BZ,et al."Rapid optical variability of gamma-raye-loud blazars".ASTRONOMICAL JOURNAL 122.6(2001):2901-2912.