Multi-color Optical Monitoring of 10 Blazars from 2005 to 2011

doi:10.3847/1538-4365/aacffe

CORC > 国家天文台 > 中国科学院国家天文台

	Multi-color Optical Monitoring of 10 Blazars from 2005 to 2011
	Meng, Nankun 1; Zhang, Xiaoyuan 1; Wu, Jianghua 1; Ma, Jun 2,3; Zhou, Xu 2
刊名	ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
	2018-08-01
卷号	237 期号:2 页码:16
关键词	BL Lacertae objects: general galaxies: active galaxies: photometry
ISSN号	0067-0049
DOI	10.3847/1538-4365/aacffe
英文摘要	We carried out multi-color optical monitoring of a sample of 10 blazars from 2005 to 2011. The sample contains 3 LBLs, 2 IBLs, 4 HBLs, and 1 FSRQ. Our monitoring focused on the long-term variability and the sample included nine BL Lac objects and one flat-spectrum radio quasar (FSRQ). A total of 14,799 data points were collected. This is one of the largest optical databases for a sample of 10 blazars. All objects showed significant variability except for OT 546. Because of the low sampling on each single night, only BL Lacertae were observed to have intraday variability on 2006 November 6. Most BL Lac objects showed a bluer-when-brighter (BWB) chromatism, while the FSRQ, 3C 454.3, displayed a redder-when-brighter trend. The BWB color behaviors of most BL Lacs can be at least partly attributed to the trend of increasing variation amplitude with increasing frequency observed in these objects. The average spectral index of LBLs is around 1.5, as expected from the model dominated by synchrotron self-Compton loss. The optical emission of HBL is probably contaminated by the thermal emission from the host galaxies. Correlation analysis did not reveal any time delay between variations at different wavelengths.
资助项目	Chinese National Natural Science Foundation[U1531242]
WOS关键词	BL-LACERTAE OBJECTS ; ACTIVE GALACTIC NUCLEI ; SPECTRAL ENERGY-DISTRIBUTIONS ; RAY BRIGHT BLAZARS ; BLACK-HOLE MASSES ; 231 W COMAE ; X-RAY ; LAC OBJECTS ; 3C 66A ; INTRADAY VARIABILITY
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	IOP PUBLISHING LTD
WOS记录号	WOS:000440720900003
资助机构	Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation ; Chinese National Natural Science Foundation
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/22232]
专题	中国科学院国家天文台
通讯作者	Wu, Jianghua
作者单位	1.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, 20A Datun Rd, Beijing 100012, Peoples R China 3.Univ Chinese Acad Sci, Sch Astron & Space Sci, Beijing 101408, Peoples R China
推荐引用方式 GB/T 7714	Meng, Nankun,Zhang, Xiaoyuan,Wu, Jianghua,et al. Multi-color Optical Monitoring of 10 Blazars from 2005 to 2011[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2018,237(2):16.
APA	Meng, Nankun,Zhang, Xiaoyuan,Wu, Jianghua,Ma, Jun,&Zhou, Xu.(2018).Multi-color Optical Monitoring of 10 Blazars from 2005 to 2011.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,237(2),16.
MLA	Meng, Nankun,et al."Multi-color Optical Monitoring of 10 Blazars from 2005 to 2011".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 237.2(2018):16.