Institutional Repository of Radio Astronomy Research Laboratory
| Detection of proper motion in OQ208? | |
Liu, X1 ; Stanghellini, C2; Dallacasa, D3; Bondi, M4
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| 2000 | |
| Source Publication | CHINESE PHYSICS LETTERS
 |
| Volume | 17Issue:4Pages:307-309 |
| Contribution Rank | 1 |
| Abstract | 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. |
| Subtype | Article |
| DOI | 10.1088/0256-307X/17/4/027 |
| WOS Headings | Science & Technology ; Physical Sciences |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | COMPACT STEEP-SPECTRUM ; RADIO-SOURCES ; SYMMETRICAL OBJECTS ; OQ-208 ; YOUNG ; AGES |
| WOS Research Area | Physics |
| WOS Subject | Physics, Multidisciplinary |
| WOS ID | WOS:000087271200027 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/851 |
| Collection | 射电天文研究室_星系宇宙学研究团组 射电天文研究室 |
| Affiliation | 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 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Liu-2000-Detection o（263KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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