Direct estimation of the Solar acceleration using geodetic/astrometric VLBI observations
文献类型：期刊论文
| 作者 | Xu MingHui2; Wang GuangLi2; Zhao Ming2 |
| 刊名 | SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
 |
| 出版日期 | 2012 |
| 卷号 | 55期号:2页码:329 |
| 关键词 | ABERRATION MOTIONS solar acceleration secular aberration VLBI astrometry |
| ISSN号 | 1674-7348 |
| 英文摘要 | The secular aberration drift observed as the apparent proper motion of extragalactic radio sources is caused by the acceleration of the coordinate origin, the Solar System barycenter. So, the acceleration can be estimated as a global parameter by using the 30 years global geodetic/astrometric VLBI data. This estimation is independent of any kinematic or dynamic model of the Milky Way or statistics hypothesis. The estimated acceleration in the direction of the Galactic center is (0.80 +/- 0.04) cm center dot s(-1)center dot yr(-1), while the other two components are (-0.01 +/- 0.06) and (0.52 +/- 0.05) cm center dot s(-1)center dot yr(-1) in the direction along the Solar motion in the Galactic plane and in the direction normal to the Galactic plane, respectively. The estimate of the acceleration independently provides another kinematics parameter without referring to any objects within the Galaxy. |
| 资助项目 | [National Natural Science Foundation of China] ; [Shanghai Municipal Key Laboratory] ; [National Natural Science Foundation of China] ; [Shanghai Municipal Key Laboratory] |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/62926]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院 2.中国科学院国家天文台 |
| 推荐引用方式 GB/T 7714 | Xu MingHui,Wang GuangLi,Zhao Ming. Direct estimation of the Solar acceleration using geodetic/astrometric VLBI observations[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2012,55(2):329. |
| APA | Xu MingHui,Wang GuangLi,&Zhao Ming.(2012).Direct estimation of the Solar acceleration using geodetic/astrometric VLBI observations.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,55(2),329. |
| MLA | Xu MingHui,et al."Direct estimation of the Solar acceleration using geodetic/astrometric VLBI observations".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 55.2(2012):329. |
入库方式： OAI收割
来源：国家天文台
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。