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Timing irregularities of PSR J1705-1906
Liu, Y. L.1,2; Yuan, J. P.2,3,4; Wang, J. B.2,4; Liu, X. W.1; Wang, N.2,3,4; Yuen, R.2,3
Contribution Rank2

Timing analysis of PSR J1705-1906 using data from Nanshan 25-m and Parkes 64-m radio telescopes, which span over fourteen years, shows that the pulsar exhibits significant proper motion, and rotation instability. We updated the astrometry parameters and the spin parameters of the pulsar. In order to minimize the effect of timing irregularities on measuring its position, we employ the Cholesky method to analyse the timing noise. We obtain the proper motion of -77(3) mas yr(-1) in right ascension and -38(29) mas yr(-1) in declination. The power spectrum of timing noise is analyzed for the first time, which gives the spectral exponent alpha = -5.2 for the power-law model indicating that the fluctuations in spin frequency and spindown rate dominate the red noise. We detect two small glitches from this pulsar with fractional jump in spin frequency of Delta v/v similar to 2.9 x 10(-10) around MJD 55199 and Delta v/v similar to 2.7 x 10(-10) around MJD 55953. Investigations of pulse profile at different time segments suggest no significant changes in the pulse profiles around the two glitches.

KeywordStars: Neutron Pulsars: General Pulsars: Individual(Psr J1705-1906)
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordPulsar Glitches ; Proper-motion ; Radio Pulsars ; Package ; Tempo2 ; System ; Kicks
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000431355300018
Funding OrganizationWest light Foundation of CAS(XBBS201421) ; Strategic Priority Research Programme of Chinese Academy of Sciences(XDB23010200) ; National Natural Science Foundation of China (NSFC)(U1531137, 11373011) ; Special Funding for Advanced Users, Chinese Academy of Sciences (CAMS) ; NSFC(11403086, U1431107, 11573059) ; National Basic Research Program of China(2015CB857100) ; National Program on Key Research and Development Project(2016YFA0400804) ; West Light Foundation of the Chinese Academy of Sciences(2016-QNXZ-B-24) ; Commonwealth of Australia
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Document Type期刊论文
Corresponding AuthorYuan, J. P.
Affiliation1.China West Normal Univ, Sch Phys, Nanchong 637002, Sichuan, Peoples R China
2.Chinese Acad Sci, Xinjiang Astron Observ, 150 Sci 1 St, Urumqi 830011, Xinjiang, Peoples R China
3.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Jiangsu, Peoples R China
4.Xinjiang Key Lab Radio Astrophys, 150 Sci 1 St, Urumqi 830011, Xinjiang, 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
Liu, Y. L.,Yuan, J. P.,Wang, J. B.,et al. Timing irregularities of PSR J1705-1906[J]. ASTROPHYSICS AND SPACE SCIENCE,2018,363(5):96.
APA Liu, Y. L.,Yuan, J. P.,Wang, J. B.,Liu, X. W.,Wang, N.,&Yuen, R..(2018).Timing irregularities of PSR J1705-1906.ASTROPHYSICS AND SPACE SCIENCE,363(5),96.
MLA Liu, Y. L.,et al."Timing irregularities of PSR J1705-1906".ASTROPHYSICS AND SPACE SCIENCE 363.5(2018):96.
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