Detection of proper motion in OQ208?
文献类型：期刊论文
| 作者 | Liu, X1 ; Stanghellini, C2; Dallacasa, D3; Bondi, M4
|
| 刊名 | CHINESE PHYSICS LETTERS
 |
| 出版日期 | 2000 |
| 卷号 | 17期号:4页码:307-309 |
| 英文摘要 | We report on an ongoing work aimed to detect the separation speed of the two hot-spots of the compact symmetric object OQ208. Comparing images at 8.4 GHz taken in 6 epoches between 1994 and 1997 we obtain an estimate of 0.058+/-0.038 mas/year as the relative motions between two components of the radio source. At the red-shift of OQ208 1 mas correspond to 1 pc, thus we obtain a projected jet speed of 0.095+/-0.062c. With an inclination of 45 degrees between the jets and the line of sight, we have an actual jet velocity of 0.134+/-0.088c and therefore the kinematic age of the source is so young of 320+/-210 years. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Multidisciplinary |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | COMPACT STEEP-SPECTRUM ; RADIO-SOURCES ; SYMMETRICAL OBJECTS ; OQ-208 ; YOUNG ; AGES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000087271200027 |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/851]  |
| 专题 | 星系宇宙学研究团组 新疆天文台_射电天文研究室 |
| 作者单位 | 1.Chinese Acad Sci, Natl Astron Observ, Urumqi Astron Observ, Urumqi 830011, Peoples R China 2.CNR, Ist Radioastron, Noto, Italy 3.Univ Bologna, I-40126 Bologna, Italy 4.CNR, Ist Radioastron, I-40126 Bologna, Italy |
| 推荐引用方式 GB/T 7714 | Liu, X,Stanghellini, C,Dallacasa, D,et al. Detection of proper motion in OQ208?[J]. CHINESE PHYSICS LETTERS,2000,17(4):307-309. |
| APA | Liu, X,Stanghellini, C,Dallacasa, D,&Bondi, M.(2000).Detection of proper motion in OQ208?.CHINESE PHYSICS LETTERS,17(4),307-309. |
| MLA | Liu, X,et al."Detection of proper motion in OQ208?".CHINESE PHYSICS LETTERS 17.4(2000):307-309. |
入库方式： OAI收割
来源：新疆天文台
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