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| 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
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| 2024-03-01 | |
| Source Publication | UNIVERSE
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| Volume | 10Issue:3Pages:105 |
| Contribution Rank | 1 |
| Abstract | 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. |
| Keyword | neutron star radio pulsar timing noise |
| DOI | 10.3390/universe10030105 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | RED POWER SPECTRA ; CRAB PULSAR ; MAGNETOSPHERIC FLUCTUATIONS ; GLITCHES ; JPL ; PACKAGE ; TEMPO2 |
| Funding Project | National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| WOS Research Area | Astronomy & Astrophysics ; Physics |
| WOS Subject | Astronomy & Astrophysics ; Physics, Particles & Fields |
| WOS ID | WOS:001192758400001 |
| Publisher | MDPI |
| Funding Organization | National Natural Science Foundation of China ; Key Laboratory of Radio Astronomy, Chinese Academy of Sciences |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6248 |
| Collection | 射电天文研究室_脉冲星研究团组 科研仪器设备产出_利用南山26米射电望远镜（NSRT）观测数据的文章 |
| Corresponding Author | Yuan, Jianping |
| Affiliation | 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 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Yuan-2024-Characteri（5294KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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