| Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope | |
| Yuan, Jianping1,2; Wang, Na1; Dang, Shijun3; Li, Lin4; Kou, Feifei1; Yan, Wenming1; Wen, Zhigang1; Liu, Zhiyong1; Yuen, Rai1; Wang, Jingbo5; Zhou, Zurong6; Liu, Peng7; He, Dalin1 | |
| 2024-03-01 | |
| 发表期刊 | UNIVERSE
 |
| 卷号 | 10期号:3页码:13 |
| 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. |
| 关键词 | neutron star radio pulsar timing noise |
| 资助者 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| DOI | 10.3390/universe10030105 |
| 关键词[WOS] | RED POWER SPECTRA ; CRAB PULSAR ; MAGNETOSPHERIC FLUCTUATIONS ; GLITCHES ; JPL ; PACKAGE ; TEMPO2 |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| 资助者 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| WOS类目 | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS记录号 | WOS:001192758400001 |
| 出版者 | MDPI |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/14742 |
| 专题 | 守时理论与方法研究室 |
| 通讯作者 | Yuan, Jianping |
| 作者单位 | 1.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Peoples R China 2.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China 3.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China 4.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830017, Peoples R China 5.Lishui Univ, Inst Optoelect Technol, Lishui 323000, Peoples R China 6.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China 7.Xiamen Univ, Dept Astron, Xiamen 361005, 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):13. |
| 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),13. |
| MLA | Yuan, Jianping,et al."Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope".UNIVERSE 10.3(2024):13. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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