nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150
文献类型：期刊论文
| 作者 | Qian Shanjie |
| 刊名 | researchinastronomyandastrophysics
 |
| 出版日期 | 2016 |
| 卷号 | 16期号:1 |
| ISSN号 | 1674-4527 |
| 英文摘要 | NRAO 150 is a very special radio quasar in which prominent non-ballistic superluminal motion has been observed in its inner-jet region. We apply model-fittings to the kinematics of the superluminal knots (trajectory, distance from the core and apparent velocity) in terms of a helical precessing jet-nozzle model. Five cases are considered in which the angle between the jet axis and the line of sight is assumed to be 6 degrees, 3 degrees, 1 degrees, 0.6 degrees and 0.12 degrees, respectively. It is shown that the superluminal components have intrinsic acceleration in the innermost regions (less than or similar to 0.2 mas from the core). The phenomenon of precessing nozzle/trajectory can be understood on the basis of relativistic magnetohydrodynamic theories for relativistic jets. |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/47067]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Qian Shanjie. nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150[J]. researchinastronomyandastrophysics,2016,16(1). |
| APA | Qian Shanjie.(2016).nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150.researchinastronomyandastrophysics,16(1). |
| MLA | Qian Shanjie."nonballisticmotionandprecessinghelicaltrajectoryinquasarnrao150".researchinastronomyandastrophysics 16.1(2016). |
入库方式： OAI收割
来源：国家天文台
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