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

文献类型：期刊论文

作者Meng, Nankun1; Zhang, Xiaoyuan1; Wu, Jianghua1; Ma, Jun2,3; Zhou, Xu2
刊名ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
出版日期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
DOI10.3847/1538-4365/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.
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
资助项目Chinese National Natural Science Foundation[U1531242]
WOS研究方向Astronomy & Astrophysics
语种英语
WOS记录号WOS:000440720900003
出版者IOP PUBLISHING LTD
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
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.

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