Detecting the errors in solar system ephemeris by pulsar timing
文献类型：期刊论文
| 作者 | Li Liang1; Guo Li1; Wang GuangLi1 |
| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
 |
| 出版日期 | 2016 |
| 卷号 | 16期号:4 |
| 关键词 | PACKAGE TEMPO2 MASS astrometry ephemerides pulsars: general |
| ISSN号 | 1674-4527 |
| 英文摘要 | Pulsar timing uses planetary ephemerides to convert the measured pulse arrival time at an observatory to the arrival time at the Solar System barycenter (SSB). Since these planetary ephemerides cannot be perfect, a method of detecting the associated errors based on a pulsar timing array is developed. By using observations made by an array of 18 millisecond pulsars from the Parkes Pulsar Timing Array, we estimated the vector uncertainty from the Earth to the SSB of JPL DE421, which reflects the offset of the ephemeris origin with respect to the ideal SSB, in different piecewise intervals of pulsar timing data, and found consistent results. To investigate the stability and reliability of our method, we divided all the pulsars into two groups. Both groups yield largely consistent results, and the uncertainty of the Earth-SSB vector is several hundred meters, which is consistent with the accuracy of JPL DE421. As an improvement in the observational accuracy, pulsar timing will be helpful to improve the solar system ephemeris in the future. |
| 资助项目 | [National Natural Science Foundation of China] ; [Opening Project of Shanghai Key Laboratory of Space Navigation and Position Techniques] |
| 语种 | 英语 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/58465]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.中国科学院国家天文台 2.中国科学院大学 |
| 推荐引用方式 GB/T 7714 | Li Liang,Guo Li,Wang GuangLi. Detecting the errors in solar system ephemeris by pulsar timing[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(4). |
| APA | Li Liang,Guo Li,&Wang GuangLi.(2016).Detecting the errors in solar system ephemeris by pulsar timing.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(4). |
| MLA | Li Liang,et al."Detecting the errors in solar system ephemeris by pulsar timing".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.4(2016). |
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。