Extreme superiuminal motion in the curved Jet of PKS 1502+106
文献类型：期刊论文
| 作者 | An, T ; Hong, XY; Venturi, T; Jiang, DR; Wang, WH
|
| 刊名 | ASTRONOMY & ASTROPHYSICS
 |
| 出版日期 | 2004-07-01 |
| 卷号 | 421期号:3页码:839-846 |
| 关键词 | galaxies : jets quasars : general quasars : individual : PKS 1502+106 |
| 英文摘要 | In this paper we present a multifrequency and multiepoch study of PKS 1502+106 at radio frequencies. The analysis is based on an EVN (European VLBI Network) dataset at 5 GHz and archive VLBA (Very Long Baseline Array) datasets at 2.3, 8.3, 24.4 and 43.1 GHz over a period of 8 years. The source is characterized by a multi-component one-sided jet at all epochs. The high-resolution images at 5, 8.3, 24.4 and 43.1 GHz show a curved jet morphology in the source. The radio core brightness temperature approaches the equipartition limit. Superluminal motions of 37.3+/- 9.3 c, 22.0+/-15.5 c, 10.5+/-2.6 c and 27.9+/-7.0 c are measured in four distinct components of the jet. Our analysis supports the idea that the relativistic jet in PKS 1502+106 is characterised by extreme beaming and that its radio properties are similar to those of gamma-ray loud sources. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Astronomy & Astrophysics |
| 研究领域[WOS] | Astronomy & Astrophysics |
| 关键词[WOS] | ACTIVE GALACTIC NUCLEI ; GAMMA-RAY SOURCES ; RADIO-SOURCES ; VLBA OBSERVATIONS ; EGRET CATALOG ; SPECTRUM ; BLAZARS ; QUASARS ; SAMPLE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000223249700008 |
| 源URL | [http://119.78.226.72/handle/331011/18303]  |
| 专题 | 上海天文台_VLBI研究室 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 3.CNR, Ist Radioastron, I-40129 Bologna, Italy |
| 推荐引用方式 GB/T 7714 | An, T,Hong, XY,Venturi, T,et al. Extreme superiuminal motion in the curved Jet of PKS 1502+106[J]. ASTRONOMY & ASTROPHYSICS,2004,421(3):839-846. |
| APA | An, T,Hong, XY,Venturi, T,Jiang, DR,&Wang, WH.(2004).Extreme superiuminal motion in the curved Jet of PKS 1502+106.ASTRONOMY & ASTROPHYSICS,421(3),839-846. |
| MLA | An, T,et al."Extreme superiuminal motion in the curved Jet of PKS 1502+106".ASTRONOMY & ASTROPHYSICS 421.3(2004):839-846. |
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来源：上海天文台
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