J/ApJ/804/23ivo://CDS.VizieR/J/ApJ/804/23doi:10.26093/cds/vizier.18040023CDSKrishnakumar M.A.Mitra D.Naidu A.Joshi B.C.Manoharan P.K.2017-06-27T06:38:21Z2015-09-11T11:27:03ZCDS support team

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

cds-question@unistra.frpulsarsradio-continuum-emissionWe present the measurements of scatter broadening timescales ({tau}_SC_) for 124 pulsars at 327MHz using the upgraded Ooty Radio Telescope (ORT). These pulsars lie in the dispersion measure range of 37-503pc/cm3 and declination ({delta}) range of -57{deg}<{sigma}<60{deg}. New {tau}_SC_ estimates for 58 pulsars are presented, increasing the sample of all such measurements by about 40% at 327MHz. Using all available {tau}_SC_ measurements in the literature, we investigate the dependence of {tau}_SC_ on dispersion measure. Our measurements, together with previously reported values for {tau}_SC_, affirm that the ionized interstellar medium up to 3kpc is consistent with the Kolmogorov spectrum, while it deviates significantly beyond this distance.2015ApJ...804...23Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/804/23CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVII/189 : Catalog of Pulsars (Taylor+ 1995)VII/156 : Catalog of 558 Pulsars (Taylor+ 1993)J/ApJ/763/80 : GBT 350MHz survey. I. 13 new pulsars (Boyles+, 2013)J/MNRAS/423/1351 : Energy distribution in pulsars (Burke-Spolaor+, 2012)J/A+A/513/A65 : Rotation measures in the 4th Galactic quadrant (Nota+, 2010)J/AZh/87/238 : Pulse profile of radio pulsars at 102, 111MHz (Malov+, 2010)J/MNRAS/391/1210 : Characteristics of energetic pulsars (Weltevrede+, 2008)J/MNRAS/386/1881 : New pulsar rotation measures (Noutsos+, 2008)J/AZh/84/685 : Scattering of pulsar radio emission (Kuz'min+, 2007)J/ApJ/642/868 : Rotation measures for 223 pulsars (Han+, 2006)J/MNRAS/353/1311 : Long-term timing observations of 374 pulsars (Hobbs+, 2004)J/MNRAS/352/1439 : Parkes Multi-Beam Pulsar Survey. IV. (Hobbs+, 2004)J/ApJ/605/759 : Multifrequency obs. of radio pulse broadening (Bhat+, 2004)J/AJ/128/1646 : The Galactic Center region at 330MHz (Nord+, 2004)J/AZh/79/501 : Radio luminosities of normal + ms pulsars (Kuz'min, 2002)J/MNRAS/328/17 : Parkes Multi-Beam Pulsar Survey (Manchester+, 2001)J/A+AS/147/195 : Pulsar spectra of radio emission (Maron+, 2000)J/MNRAS/301/235 : Multifrequency polarimetry of 300 pulsars (Gould+, 1998)J/MNRAS/273/411 : Multifrequency fluxes of 280 pulsars (Lorimer+ 1995)J/AZh/71/762 : Radio luminosities of 232 pulsars (Malov+, 1994)http://www.atnf.csiro.au/research/pulsar/psrcat : ATNF pulsar cataloguehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/804/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/804/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/804/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/804/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/804/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/804/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/804/23/pulsars (327MHz observations and results)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/804/23/pulsars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/804/23/pulsars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/804/23/pulsars?GETtext/xml+votable180.050000true72.5365875-12.80197220.0055555555555555566/1470 12987 13287 14309 14337 14342 14344 14429 14431 14549 14621 14649 15365 15377 21171 21455 22058 22594 23727 23994 24040 24185 28716 28795 28807 28825 28826 28869 28921 29059 29082 29108 29145 29146 29483 29495 29511 29521 29524 29534 29550 29617 29653 29680 29833 29883 29929 30215 30252 30256 30257 30258 30269 30273 30286 30309 30328 30332 30348 30417 30501 30592 30594 30598 30600 30603 30638 30641 30646 30690 30691 30693 30696 30708 30713 32086 32087 37848 37864 37876 37884 37990 38020 38040 38048 38113 38179 38568 38597 39216 39235 39275 39280 39311 39342 39789 39977 39992 41806 42178 42196 42227 42288 42343 42356 42466 42471 42477 42487 42515 42560 42577 42583 42595 42612 42821 42825 42832 43110 43169 43219 47803https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/804/23?format=asciiRadiodefaultJ/ApJ/804/23/pulsars327MHz observations and resultsJNamePSR JName and link for the ones listed in http://www.atnf.csiro.au/people/joh414/ppdata/meta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMJDModified Julian Day of observationdtime.epoch;obsdoublePer[0.03/2.8] Pulsar periodstime.perioddoubleDM[37/503] Dispersion measure (G1)pc.cm**-3phys.dispMeasure;instr.dispersionfloatRM[-1000/978]? Rotation measure (G1)rad.m**-2phys.polarization.rotMeasuredoublenullableExp[7/419] Duration of observationmintime.expointSNR[5/519] Peak Signal-to-Noisestat.snr;stat.maxintSeqRunning sequence numbermeta.idintf_Seq[b] (ar observed in other places (1)meta.codecharPSRPulsar identifiermeta.id;meta.maincharn_PSR[1d *] Peculiar pulsar PSR (2)meta.notecharGLONGalactic longitude (G1)degpos.galactic.lonGLATGalactic latitude (G1)degpos.galactic.latfloattau[0.1/543] Measured scatter broadening time-scale ({tau}_sc_)mstime.scalefloate_tau[0.01/184] Uncertainty in taumsstat.errorfloatW3[3.9/1113] The 3{sigma} pulse widthmssrc.var.pulsefloatchi2[0.5/2.7] Normalized {chi}^2^stat.fit.chi2;arith.ratiofloatdof[97/1021] Number of degrees of freedommeta.numberintD[0.2/9] Distance calculated from Cordes & Lazio (2002astro.ph..7156C) modelkpcpos.distance;pos.heliocentricfloattau1Expected {tau}_sc_ calculated from Cordes & Lazio (2002astro.ph..7156C) modelmstime.scalefloatC2[-3.2/1.3] Scattering strength; in units of m^-20/3^stat.fit.paramfloatSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main