Results of 12 yr of Pulsar Timing at Nanshan. I.
文献类型：期刊论文
| 作者 | Dang,S. J.4,5; Yuan,J. P.1,4; Manchester,R. N.6; Li,L.2,4; Wang,N.1,4; Wang,J. B.1,4; Hobbs,G.6; Liu,Z. Y.1,4; Kou,F. F.3,4 |
| 刊名 | The Astrophysical Journal
 |
| 出版日期 | 2020-06-01 |
| 卷号 | 896期号:2 |
| ISSN号 | 0004-637X |
| 关键词 | Radio pulsars Neutron stars Pulsars Pulsar timing method |
| DOI | 10.3847/1538-4357/ab9082 |
| 英文摘要 | Abstract We have used the Nanshan 25 m Radio Telescope at Xinjiang Astronomical Observatory to obtain timing observations of 87 pulsars from 2002 July to 2014 March. Using the “Cholesky” timing analysis method we have determined positions and proper motions for 48 pulsars, 24 of which are improved positions compared to previously published values. We also present the first published proper motions for nine pulsars and improved proper motions for 21 pulsars using the pulsar timing and position-comparison method. The pulsar rotation parameters are derived and are more accurate than previously published values for 36 pulsars. Glitches are detected in three pulsars: PSRs J1722?3632, J1852?0635, and J1957+2831. For the first two, the glitches are large, with Δνg/ν?>?10?6, and they are the first detected glitches in these pulsars. PSR J1722?3632 is the second oldest pulsar, with a large glitch. For the middle-age pulsars (τc?>?105 yr), the calculated braking indices, , are strongly correlated with τc and the numbers of positive and negative values of n are almost equal. For young pulsars (τc??0. |
| 语种 | 英语 |
| 出版者 | The American Astronomical Society |
| WOS记录号 | IOP:0004-637X-896-2-AB9082 |
| 源URL | [http://ir.bao.ac.cn/handle/114a11/63568]  |
| 专题 | 中国科学院国家天文台 |
| 作者单位 | 1.Key Laboratory of Radio Astronomy, Chinese Academy of Sciences, Nanjing 210008, People's Republic of China; na.wang@xao.ac.cn 2.School of Physics Science and Technology, Xinjiang University, Urumqi, Xinjiang, People's Republic of China 3.CAS Key Laboratory of FAST, National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China 4.XinJiang Astronomical Observatory, Chinese Academy of Sciences, Urumqi, XinJiang 830011, People's Republic of China; yuanjp@xao.ac.cn 5.University of Chinese Academy of Sciences,19A Yuquan Road, BeiJing 100049, People's Republic of China 6.CSIRO Astronomy and Space Science, Australia Telescope National Facility, P.O. Box 76, Epping, NSW 1710, Australia |
| 推荐引用方式 GB/T 7714 | Dang,S. J.,Yuan,J. P.,Manchester,R. N.,et al. Results of 12 yr of Pulsar Timing at Nanshan. I.[J]. The Astrophysical Journal,2020,896(2). |
| APA | Dang,S. J..,Yuan,J. P..,Manchester,R. N..,Li,L..,Wang,N..,...&Kou,F. F..(2020).Results of 12 yr of Pulsar Timing at Nanshan. I..The Astrophysical Journal,896(2). |
| MLA | Dang,S. J.,et al."Results of 12 yr of Pulsar Timing at Nanshan. I.".The Astrophysical Journal 896.2(2020). |
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来源：国家天文台
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