Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope
文献类型：期刊论文
| 作者 | Yuan, Jianping2,3 ; Wang, Na2; Dang, Shijun4; Li, Lin5; Kou, Feifei2; Yan, Wenming2; Wen, Zhigang2; Liu, Zhiyong2; Yuen, Rai2; Wang, Jingbo6
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| 刊名 | UNIVERSE
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| 出版日期 | 2024-03-01 |
| 卷号 | 10期号:3页码:105 |
| 关键词 | neutron star radio pulsar timing noise |
| DOI | 10.3390/universe10030105 |
| 产权排序 | 1 |
| 英文摘要 | We present a decade of observations of pulse arrival times for 85 pulsars using the Nanshan radio telescope from July 2002 to March 2014. The Cholesky method can accurately estimate the covariance function of the timing residuals, significantly improving the parameter's estimation accuracy when red noise is prominent. We utilize the Cholesky method to determine positions and basic timing parameters of these pulsars, as well as to obtain timing residuals. Most of these sources showed evidence of significant timing irregularities, which are described. The spectral analyses of timing residuals are presented for pulsars showing obvious red noise. Our results show that timing residuals in half of these pulsars are attributed to rotational irregularities. The red noise in normal pulsars may originate from a random walk in spin frequency or spin-down rate. |
| WOS关键词 | RED POWER SPECTRA ; CRAB PULSAR ; MAGNETOSPHERIC FLUCTUATIONS ; GLITCHES ; JPL ; PACKAGE ; TEMPO2 |
| 资助项目 | National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:001192758400001 |
| 出版者 | MDPI |
| 资助机构 | National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/6247]  |
| 专题 | 脉冲星研究团组 射电天文研究室_利用南山26米射电望远镜观测数据的文章 |
| 通讯作者 | Yuan, Jianping |
| 作者单位 | 1.Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China 2.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 3.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China 4.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 5.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830017, Peoples R China 6.Lishui Univ, Inst Optoelect Technol, Lishui 323000, Peoples R China 7.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Jianping,Wang, Na,Dang, Shijun,et al. Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope[J]. UNIVERSE,2024,10(3):105. |
| APA | Yuan, Jianping.,Wang, Na.,Dang, Shijun.,Li, Lin.,Kou, Feifei.,...&He, Dalin.(2024).Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope.UNIVERSE,10(3),105. |
| MLA | Yuan, Jianping,et al."Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope".UNIVERSE 10.3(2024):105. |
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来源：新疆天文台
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