Radio and optical intra-day variability observations of five blazars
文献类型：期刊论文
| 作者 | Liu, X.1,2; Yang, P. P.3; Liu, J.1,2 ; Liu, B. R.4; Hu, S. M.5; Kurtanidze, O. M.6,7,8; Zola, S.9,10; Kraus, A.11; Krichbaum, T. P.11; Su, R. Z.1,3
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2017-08-01 |
| 卷号 | 469期号:2页码:2457-2463 |
| ISSN号 | 0035-8711 |
| 关键词 | scattering BL Lacertae objects: general galaxies: jets quasars: general |
| DOI | 10.1093/mnras/stx1062 |
| 通讯作者 | Liu, X.(liux@xao.ac.cn) ; Liu, J.(liuj@xao.ac.cn) |
| 英文摘要 | We carried out a pilot campaign of radio and optical band intra-day variability (IDV) observations of five blazars (3C66A, S5 0716+714, OJ287, B0925+504 and BL Lacertae) on 2015 December 18-21 by using the radio telescope in Effelsberg (Germany) and several optical telescopes in Asia, Europe and America. After calibration, the light curves from both 5 GHz radio band and the optical R band were obtained, although the data were not smoothly sampled over the sampling period of about four days. We tentatively analyse the amplitudes and time-scales of the variabilities, and any possible periodicity. The blazars vary significantly in the radio (except 3C66A and BL Lacertae with only marginal variations) and optical bands on intra-and inter-day time-scales, and the source B0925+504 exhibits a strong quasi-periodic radio variability. No significant correlation between the radio-and optical-band variability appears in the five sources, which we attribute to the radio IDV being dominated by interstellar scintillation whereas the optical variability comes from the source itself. However, the radio and optical-band variations appear to be weakly correlated in some sources and should be investigated based on well-sampled data from future observations. |
| WOS关键词 | BL-LACERTAE OBJECTS ; ACTIVE GALACTIC NUCLEI ; INVERSE-COMPTON CATASTROPHE ; S5 0716+714 ; INTERSTELLAR SCINTILLATION ; RAPID VARIABILITY ; ANNUAL MODULATION ; DOPPLER FACTORS ; 4.8 GHZ ; OJ 287 |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| 出版者 | OXFORD UNIV PRESS |
| WOS记录号 | WOS:000406629100092 |
| 源URL | [http://libir.pmo.ac.cn/handle/332002/22616]  |
| 专题 | 中国科学院紫金山天文台 |
| 通讯作者 | Liu, X.; Liu, J. |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 4.Guangxi Univ, Guangxi Key Lab Relativist Astrophys, Nanning 530004, Guangxi, Peoples R China 5.Shandong Univ, Inst Space Sci, Shandong Prov Key Lab Opt Astron & Solar Terr Env, Weihai 264209, Weihai, Peoples R China 6.Abastumani Observ, GE-0301 Mt Kanobili, Abastumani, Rep of Georgia 7.Kazan Fed Univ, Engelhardt Astron Observ, Tatarstan 420008, Russia 8.Landessternwarte Heidelberg, Konigstuhl 12, D-D69117 Heidelberg, Germany 9.Jagiellonian Univ, Astron Observ, Ul Orla 171, PL-30244 Krakow, Poland 10.Pedag Univ, Mt Suhora Observ, Ul Podchorazych 2, PL-30084 Krakow, Poland |
| 推荐引用方式 GB/T 7714 | Liu, X.,Yang, P. P.,Liu, J.,et al. Radio and optical intra-day variability observations of five blazars[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2017,469(2):2457-2463. |
| APA | Liu, X..,Yang, P. P..,Liu, J..,Liu, B. R..,Hu, S. M..,...&Jorstad, S. G..(2017).Radio and optical intra-day variability observations of five blazars.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,469(2),2457-2463. |
| MLA | Liu, X.,et al."Radio and optical intra-day variability observations of five blazars".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 469.2(2017):2457-2463. |
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来源：紫金山天文台
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