J/A+A/618/A186ivo://CDS.VizieR/J/A+A/618/A186doi:10.26093/cds/vizier.36180186CDSWang P.F.Han J.L.Han L.Zhang J.H.Li J.Q.Wang C.Han J.,Wang T.Gao X.Y.2018-11-05T11:33:34Z2018-10-26T09:29:38ZCDS support team

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

cds-question@unistra.frinterstellar-mediumpulsarsPulsars scintillate. Dynamic spectra show brightness variation of pulsars in the time and frequency domain. Secondary spectra demonstrate the distribution of fluctuation power in the dynamic spectra. Dynamic spectra strongly depend on observational frequencies, but were often observed at frequencies lower than 1.5GHz. Scintillation observations at higher frequencies help to constrain the turbulence feature of the interstellar medium over a wide frequency range and can detect the scintillations of more distant pulsars. Ten pulsars were observed at 2250MHz (S-band) with the Jiamusi 66m telescope to study their scintillations. Their dynamic spectra were first obtained, from which the decorrelation bandwidths and time scales of diffractive scintillation were then derived by autocorrelation. Secondary spectra were calculated by forming the Fourier power spectra of the dynamic spectra. Most of the newly obtained dynamic spectra are at the highest frequency or have the longest time span of any published data for these pulsars. For PSRs B0540+23, B2324+60 and B2351+61, these were the first dynamic spectra ever reported. The frequency-dependence of scintillation parameters indicates that the intervening medium can rarely be ideally turbulent with a Kolmogorov spectrum. The thin screen model worked well at S-band for the scintillation of PSR B1933+16. Parabolic arcs were detected in the secondary spectra of three pulsars, PSRs B0355+54, B0540+23 and B2154+40, all of which were asymmetrically distributed. The inverted arclets of PSR B0355+54 were seen to evolve along the main parabola within a continuous observing session of 12 hours, from which the angular velocity of the pulsar was estimated that was consistent with the measurement by very long baseline interferometry (VLBI).2018A&A...618A.186Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/618/A186CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttp://www.atnf.csiro.au/research/pulsar/psrcat : PSR cat Home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/618/A186https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/618/A186http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/618/A186https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/618/A186https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/618/A186http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/618/A186GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/A+A/618/A186/table1 (Parameters of 10 pulsars are listed together with frequencies for previous dynamic spectrum observations)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/A+A/618/A186/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/A+A/618/A186/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/A+A/618/A186/table1?GETtext/xml+votable180.050000true53.247276154.579180.0055555555555555566/3157 3162 11371 13719 13921 14301 14320 24360 30708 39789https://cdsarc.cds.unistra.fr/viz-bin/moc/J/A+A/618/A186?format=asciiRadiodefaultJ/A+A/618/A186/table1Parameters of 10 pulsars are listed together with frequencies for previous dynamic spectrum observationsDistDistancekpcpos.distancefloatPSRPulsar name (BHHMM+DD)meta.id;meta.maincharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPerPeriodstime.periodfloatDMDispersion measurepc.cm**-3phys.dispMeasure;instr.dispersionfloatGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatZHeight above the planekpcpos.cartesian.z;pos.galacticfloate_Distrms uncertainty on Distkpcstat.errorfloatn_Dist[+] Note on Dist (2)meta.notecharr_Dist[de] Reference for Dist (1)meta.ref;pos.framecharVpTransverse velocitykm/sphys.veloc.transverseinte_Vprms uncertainty on Vpkm/sstat.errorintn_Vp[+] Note on Vp (2)meta.notecharr_Vp[abcdf] Reference for Vp (1)meta.ref;pos.framecharFreqs1Frequencies of previous observations, nu<2.3GHzmeta.notecharFreqs2Frequencies of previous observations, nu>=2.3GHzmeta.notecharsp1Show the spectrummeta.ref.urlcharsp2Show the spectrummeta.ref.urlcharsp3Show the spectrummeta.ref.urlcharsp4Show the spectrummeta.ref.urlcharsp5Show the spectrummeta.ref.urlcharsp6Show the spectrummeta.ref.urlcharsp7Show the spectrummeta.ref.urlcharsp8Show the spectrummeta.ref.urlcharFileName1Name of spectrum file, in subdirectory spmeta.id;meta.filecharFileName2Name of spectrum file, in subdirectory spmeta.id;meta.filecharFileName3Name of spectrum file, in subdirectory spmeta.id;meta.filecharFileName4Name of spectrum file, in subdirectory spmeta.id;meta.filecharFileName5Name of spectrum file, in subdirectory spmeta.id;meta.filecharFileName6Name of spectrum file, in subdirectory spmeta.id;meta.filecharFileName7Name of spectrum file, in subdirectory spmeta.id;meta.filecharFileName8Name of spectrum file, in subdirectory spmeta.id;meta.filecharSimbadSimbad 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