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Characterizing Timing Noise in Normal Pulsars with the Nanshan Radio Telescope

文献类型：期刊论文

作者Yuan, Jianping6,7; Wang, Na7; Dang, Shijun5; Li, Lin4; Kou, Feifei7; Yan, Wenming7; Wen, Zhigang7; Liu, Zhiyong7; Yuen, Rai7; Wang, Jingbo3
刊名UNIVERSE
出版日期2024-03-01
卷号10期号:3页码:13
关键词neutron star radio pulsar timing noise
DOI10.3390/universe10030105
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 ; 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
源URL[http://210.72.145.45/handle/361003/14742]  
专题国家授时中心_守时理论与方法研究室
通讯作者Yuan, Jianping
作者单位1.Xiamen Univ, Dept Astron, Xiamen 361005, Peoples R China
2.Chinese Acad Sci, Natl Time Serv Ctr, Xian 710600, Peoples R China
3.Lishui Univ, Inst Optoelect Technol, Lishui 323000, Peoples R China
4.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi 830017, Peoples R China
5.Guizhou Normal Univ, Sch Phys & Elect Sci, Guiyang 550001, Peoples R China
6.Chinese Acad Sci, Key Lab Radio Astron, Urumqi 830011, Peoples R China
7.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, 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.

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