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Pulsar timing at Urumqi Observatory
Weizhen Zou1,2,3; Na Wang1; Manchester, R. N.4; Hobbs, G.4; Wu, X. J.5; Yusup, A.1
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We report on recent pulsar timing observations undertaken by the Urumqi Observatory. Observations for 74 radio pulsars have been made regularly at an observing frequency of 1540 MHz as part of the Urumqi Observatory timing program, which commenced in 1999 November at the 25-m Urumqi Nanshan telescope. Currently 284 pulsars are monitored with an average interval between observations of similar to 9 days. The dedispersion is provided by a 2 x 128 x 2.5 MHz filterbank/digitiser system. Accurate and updated periods, period derivatives and positions have been obtained for the majority of the 74 pulsars with timing observations spanning more than one year. For datasets spanning more than one year we have obtained improved positions, proper motions and velocities. Comparing our measurements of period and period derivative with earlier observations, we conclude that, long-term period and period-derivative fluctuations may be dominated by unseen glitches. We also present the observed results for ten glitches of four young pulsars detected in the last five years.

KeywordStars : Neutron Pulsars
Subject Area致密天体、高能和基础物理
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI ; CPCI
WOS KeywordProper Motions ; Velocities ; Ephemerides
Funding Project脉冲星研究团组
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000245632000036
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; Key Directional Project program of CAS
Conference NameLake Hanas International Pulsar Symposium 2005
Conference PlaceXinjiang, PEOPLES R CHINA
Conference Date2005 August 2-7
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Document Type期刊论文
Corresponding AuthorWeizhen Zou
Affiliation1.NAO CAS, Urumqi Observ, Urumqi 830011, Peoples R China
2.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
4.CSIRO, Australia Telescope Natl Facil, Epping, NSW 1710, Australia
5.Peking Univ, Dept Astron, Beijing 100871, 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
Weizhen Zou,Na Wang,Manchester, R. N.,et al. Pulsar timing at Urumqi Observatory[J]. CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,2006,6(S2):181-184.
APA Weizhen Zou,Na Wang,Manchester, R. N.,Hobbs, G.,Wu, X. J.,&Yusup, A..(2006).Pulsar timing at Urumqi Observatory.CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS,6(S2),181-184.
MLA Weizhen Zou,et al."Pulsar timing at Urumqi Observatory".CHINESE JOURNAL OF ASTRONOMY AND ASTROPHYSICS 6.S2(2006):181-184.
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