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题名: Recent Seven Years of Radio and Optical Variabilities of Quasar 1156+295
作者: Liu, Baorong1, 3, 4, 5; Liu, Xiang1, 2
刊名: JOURNAL OF ASTROPHYSICS AND ASTRONOMY
出版日期: 2014-09-01
卷号: 35, 期号:3, 页码:481-483
关键词: Quasar: individual: 1156+295 ; long-term variability
文章类型: Article
英文摘要: We analyzed the radio (4.8, 8.0 and 14.5 GHz) light curves from UMRAO database and the optical data of quasar 1156 + 295 and found that the quasar exhibited remarkable quasi-periodic long-term flux variations in both radio and optical bands with a similar variability timescale of 1.2 +/- 0.3 yr. In addition, when a cross correlation analysis was adopted to the radio and optical light curves, we found that the optical variations may precede those of the radio e.g., at 14.5 GHz by similar to 200 days.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Astronomy & Astrophysics
研究领域[WOS]: Astronomy & Astrophysics
收录类别: SCI
语种: 英语
WOS记录号: WOS:000350481700064
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内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15693
Appears in Collections:暗物质和空间天文实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
3.Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China
4.Guangxi Univ, GXU NAOC, Ctr Astrophys & Space Sci, Nanning 530004, Peoples R China
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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