J/MNRAS/328/855ivo://CDS.VizieR/J/MNRAS/328/855doi:10.26093/cds/vizier.73280855CDSWang N.Manchester R.N.Zhang J.Wu X.J.Yusup A.Lyne A.G.,Cheng K.S.Chen M.Z.2024-06-27T20:17:53Z2006-04-06T08:52:56ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frpulsarsastrometryA pulsar timing system has been operating in the 18-cm band at the Urumqi Astronomical Observatory 25-m telescope since mid-1999. Frequency resolution allowing de-dispersion of the pulsar signals is provided by a 2x128x2.5MHz filterbank/digitizer system. Observations of 74 pulsars over more than 12 months have resulted in updated pulsar periods and period derivatives, as well as improved positions. Comparison with previous measurements showed that the changes in period and period derivative tend to have the same sign and to be correlated in amplitude. A model based on unseen glitches gives a good explanation of the observed changes, suggesting that long-term fluctuations in period and period derivatives are dominated by glitches. In 2000 July, we detected a glitch of relative amplitude {Delta}{nu}/{nu}~24x10^-9^in the Crab pulsar. The post-glitch decay appears similar to other large Crab glitches.2001MNRAS.328..855Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/328/855CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/156 : Catalog of 558 Pulsars (Taylor+ 1993)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/328/855https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/328/855http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/328/855https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/328/855https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/328/855http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/328/855GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/328/855/table1 (Pulsars positions from catalogue and this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/328/855/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/328/855/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/328/855/table1?GETtext/xml+votable180.050000true8.537-7.364833330.0055555555555555566/1949 3157 3162 3616 3621 4163 4831 8068 11371 12939 13053 13218 13719 13921 14122 14301 14306 14309 14320 14346 14549 14649 14739 14842 15304 15365 15377 15499 17247 20574 21171 24185-24186 24360 24541 27554 28135 28226 28825-28826 28872 28901 28919 28945 29082 29108 29334 29387 29461 29521 29524 29530 29532 29534 29550 29653 29929 30257 30269 30657 30691 30708 30941 39280 39342 39789 39977 40667 42356 42391 42457 42487 42832 48928https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/328/855?format=asciiRadiodefaultJ/MNRAS/328/855/table1Pulsars positions from catalogue and this workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPSRJJ2000 pulsar designationmeta.id;meta.maincharPSRBB1950 pulsar designationmeta.idcharRAJ2000Catalog right ascension (J2000)pos.eq.ra;meta.maine_RAsrms uncertainty on RAc (J2000)0.001sstat.error;pos.eq.raintDEJ2000Catalog declination (J2000)pos.eq.dec;meta.maine_DEsrms uncertainty of catalog declination (J2000)10masstat.error;pos.eq.decintRefReference for catalog positions (1)meta.bibcharRA1? Observed Right ascension (J2000)pos.eq.ranullablee_RA1s? rms uncertainty on observed RA (J2000)0.0001sstat.error;pos.eq.raintnullableDE1? Observed Declination (J2000)pos.eq.decnullablee_DE1s? Observed Declination (J2000)10masstat.error;pos.eq.decintnullableMJD1Data span (MJD of beginning)dtime.epochintMJD2Data span (MJD of end)dtime.epochint