J/MNRAS/494/228ivo://CDS.VizieR/J/MNRAS/494/228doi:10.26093/cds/vizier.74940228CDSLower M.E.Bailes M.Shannon R.M.Johnston S.Flynn C.Oslowski S.,Gupta V.Farah W.Bateman T.Green A.J.Hunstead R.Jameson A.,Jankowski F.Parthasarathy A.Price D.C.Sutherland A.Temby D.,Venkatraman Krishnan V.2024-08-21T20:14:03Z2023-07-28T12:07:38ZCDS support team

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

cds-question@unistra.frpulsarsneutron-starsastrometryephemeridesradio-sourcesWhile pulsars possess exceptional rotational stability, large-scale timing studies have revealed at least two distinct types of irregularities in their rotation: red timing noise and glitches. Using modern Bayesian techniques, we investigated the timing noise properties of 300 bright southern-sky radio pulsars that have been observed over 1.0-4.8yr by the upgraded Molonglo Observatory Synthesis Telescope (MOST). We reanalysed the spin and spin-down changes associated with nine previously reported pulsar glitches, report the discovery of three new glitches and four unusual glitch-like events in the rotational evolution of PSR J1825-0935. We develop a refined Bayesian framework for determining how red noise strength scales with pulsar spin frequency ({nu}) and spin-down frequency (d{nu}/dt), which we apply to a sample of 280 non-recycled pulsars. With this new method and a simple power-law scaling relation, we show that red noise strength scales across the non-recycled pulsar population as {nu}^a^|d{nu}/dt|^b^, where a=-0.84^+0.47^_-0.49_ and b=0.97^+0.16^_-0.19_. This method can be easily adapted to utilize more complex, astrophysically motivated red noise models. Lastly, we highlight our timing of the double neutron star PSR J0737-3039, and the rediscovery of a bright radio pulsar originally found during the first Molonglo pulsar surveys with an incorrectly catalogued position.2020MNRAS.494..228Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/494/228CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/484/3691 : UTMOST pulsar timing programme. I. (Jankowski+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/494/228https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/494/228http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/494/228https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/494/228https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/494/228http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/494/228GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/494/228/tablea1 (Astrometric and rotational parameters of all pulsars analysed in this work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/494/228/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/494/228/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/494/228/tablea1?GETtext/xml+votable180.050000true7.61426254.86102777780.0055555555555555566/4163 4227 8277 12500 12526 16996 17378 17532 18153 18830 18947 19025 20574 21171 21455 21504 22058 22271 22594 22996 23258 23622 23727 23830 24708 25251 25763 27543 27554 28226 28735 28749 28795 28807 28825-28826 28843 28847 28849 28863-28864 28869 28872 28901 28919 28921 28945-28946 29059 29082 29090 29108 29213 29256 29312 29334 29340 29383 29387 29461 29464 29511 29516 29521 29524 29530 29532 29534 29550 29556 29653 29680 29727 29789 29863 29883 29929 30055 30116 30210-30211 30215 30218 30245-30246 30252 30256-30258 30269 30273 30286 30298 30300 30328 30330 30332-30333 30348-30349 30357 30417 30501 30594 30600 30603 30617 30619 30641 30657 30690-30691 30696 30708 30871 31829 32888 33030 33112 33730 34034 34393 35229 35691 36540 36952 37062 37082 37161 37193-37194 37207 37224 37232 37244 37332 37341 37360-37361 37375 37435 37646 37701 37704 37714 37745-37746 37787 37828 37848 37864 37898 37900 37905 37910 37923-37924 37946 37948 37967 37990 38020 38040 38048 38060 38081 38113 38133 38250 38402 38425 38428 38568 38711 39216 39235 39275 39280 39342 39784 39789 39977 39992 40366 40432 40667 40680 41212 41258 41271 41386 41470 41535 41561 41583 41593 41607 41619 41625 41630 41656 41672 41674 41678 41689 41697 41704 41710 41727 41736 41757 41765 41771 41781 41799 41806 41812 41818-41820 41833 41859 41871 41894 41929 41939 42092 42155 42173 42178 42196 42208 42223 42227-42228 42233 42288 42306 42346 42356 42382 42384 42391 42432 42450 42466 42471 42477 42481 42487 42503 42515 42528 42533 42560 42577 42592 42595 42658 42676 42821 42832 42914 42916 42937 43012 43015 43060 43107 43110 43113 43125 43144 43169 43261 43272 43460 44103 44308 45285 45897 46095 46237 46787 47010 47275 47484 47741 47885 47975 48080 48928 49053 49129https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/494/228?format=asciiRadiodefaultJ/MNRAS/494/228/tablea1Astrometric and rotational parameters of all pulsars analysed in this work_RA.icrsRight ascension (ICRS) at Epoch=J2015.7 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2015.7 (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)pos.eq.decindexedSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePulsar name (JHHMM+DDMMA)meta.id;meta.maincharRA_ICRSRight ascension (ICRS) at Ep=2015.7 (1)pos.eq.ra;meta.maine_RA_ICRSError on RAs (1{sigma})sstat.error;pos.eq.radoubleDE_ICRSDeclination (ICRS) at Ep=2015.7 (1)pos.eq.dec;meta.maine_DE_ICRSError on DEs (1{sigma})arcsecstat.error;pos.eq.decfloatnuPulsar spin frequencyHzem.freq;src.vardoubleE_nuUpper error on nu (2)Hzstat.error;stat.maxdoublee_nuLower error on nu (2)Hzstat.errordoublednu/dtPulsar spin-down frequency1e-15s**-2phys.energydoubleE_dnu/dtUpper error on dnu/dt (2)1e-15s**-2stat.error;stat.maxdoublee_dnu/dtLower error on dnu/dt (2)1e-15s**-2stat.errordoubled2nu/dt2? Pulsar second spin-frequency derivative1e-24s**-3stat.fit.paramdoublenullableE_d2nu/dt2? Upper error on d2nu/dt21e-24s**-3stat.error;stat.maxdoublenullablee_d2nu/dt2? Lower error on d2nu/dt21e-24s**-3stat.errordoublenullableNTOANumber of time of arrivals (TOAs)meta.numberintTObservation time spanyrtime.intervalfloatFlagFlag on the pulsar (3)meta.code.errorcharJ/MNRAS/494/228/tableb1List of the preferred timing noise model, Bayes factor and associated red noise parameters for each pulsar in our data setrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePulsar name (JHHMM+DDMMA)meta.id;meta.maincharf_NameFlag on Name (1)meta.codecharModelPreferred timing noise model (2)instr.det.noise;meta.modelledcharlnB? Natural logarithm of the Bayes factor (3)stat.fit.paramfloatnullablelogA? Logarithm of the amplitude of the red noise power law (in yr^3/2^) (4)src.var.amplitudefloatnullableE_logA? Upper error on logA (in yr^3/2^) (5)stat.error;stat.maxfloatnullablee_logA? Lower error on logA (in yr^3/2^) (5)stat.errorfloatnullablebeta? Spectral index of the red noise power law (4)spect.indexfloatnullableE_beta? Upper error on beta (5)stat.error;stat.maxfloatnullablee_beta? Lower error on beta (5)stat.errorfloatnullable