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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
2018-05-01
Source PublicationASTROPHYSICS AND SPACE SCIENCE
ISSN0004-640X
Volume363Issue:5Pages:9
Corresponding AuthorYuan, J. P.(yuanjp@xao.ac.cn)
AbstractTiming 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)
DOI10.1007/s10509-018-3322-1
WOS KeywordPULSAR GLITCHES ; PROPER-MOTION ; RADIO PULSARS ; PACKAGE ; TEMPO2 ; SYSTEM ; KICKS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000431355300018
PublisherSPRINGER
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/22013
Collection中国科学院紫金山天文台
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
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):9.
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),9.
MLA Liu, Y. L.,et al."Timing irregularities of PSR J1705-1906".ASTROPHYSICS AND SPACE SCIENCE 363.5(2018):9.
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