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Results of 12 yr of Pulsar Timing at Nanshan. I.
Dang, S. J.1,2; Yuan, J. P.1,3; Manchester, R. N.4; Li, L.1,5; Wang, N.1,3; Wang, J. B.1,3; Hobbs, G.4; Liu, Z. Y.1,3; Kou, F. F.1,6
2020-06-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume896Issue:2Pages:140
Contribution Rank1
AbstractWe 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 Delta nu(g)/nu > 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 (tau(c) > 10(5) yr), the calculated braking indices, vertical bar n vertical bar, are strongly correlated with tau(c) and the numbers of positive and negative values of n are almost equal. For young pulsars (tau(c) < 10(5) yr), there is no correlation between vertical bar n vertical bar and tau(c) and most have n > 0.
DOI10.3847/1538-4357/ab9082
URL查看原文
Indexed BySCI
Language英语
WOS KeywordFREQUENCY 2ND DERIVATIVES ; BRAKING INDEXES ; PROPER MOTIONS ; RADIO PULSARS ; GLITCHES ; DISCOVERY ; NOISE
Funding ProjectNational Key Research and Development Program of China[2016YFA0400804] ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; National Natural Science Foundation of China[11463005] ; National Natural Science Foundation of China[11873080] ; Doctoral Research Start-up Fund at Xinjiang University ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; National Key R&D Program of China[2018YFA0404603]
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000548355000001
PublisherIOP PUBLISHING LTD
Funding OrganizationNational Key Research and Development Program of China ; Operation, Maintenance and Upgrading Fund for Astronomical Telescopes and Facility Instruments ; National Natural Science Foundation of China ; Doctoral Research Start-up Fund at Xinjiang University ; Youth Innovation Promotion Association of Chinese Academy of Sciences ; National Key R&D Program of China
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Cited Times:7[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.xao.ac.cn/handle/45760611-7/3569
Collection射电天文研究室_脉冲星研究团组
射电天文研究室
Corresponding AuthorYuan, J. P.; Wang, N.
Affiliation1.Chinese Acad Sci, XinJiang Astron Observ, Urumqi 830011, Xinjiang, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China
4.CSIRO Astron & Space Sci, Australia Telescope Natl Facil, POB 76, Epping, NSW 1710, Australia
5.Xinjiang Univ, Sch Phys Sci & Technol, Urumqi, Xinjiang, Peoples R China
6.Chinese Acad Sci, Natl Astron Observ, CAS Key Lab FAST, Beijing, Peoples R China
First Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Corresponding Author AffilicationXinjiang Astronomical Observatory, Chinese Academy of Sciences
Recommended Citation
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]. ASTROPHYSICAL JOURNAL,2020,896(2):140.
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..ASTROPHYSICAL JOURNAL,896(2),140.
MLA Dang, S. J.,et al."Results of 12 yr of Pulsar Timing at Nanshan. I.".ASTROPHYSICAL JOURNAL 896.2(2020):140.
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