J/MNRAS/520/314ivo://CDS.VizieR/J/MNRAS/520/314CDSWahl H.Rankin J.Venkataraman A.Olszanski T.2026-04-23T09:06:01Z2026-04-23T09:42:25ZCDS support team

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

cds-question@unistra.frpulsarsphotometryspectroscopygalaxy-kinematicsastronomical-reference-materialsmillimeter-astronomysubmillimeter-astronomyradio-sourcesmagnetic-fieldspolarimetryThis paper continues our study of radio pulsar emission-beam configurations with the primary intent of extending study to the lowest possible frequencies. Here, we focus on a group of 133 more recently discovered pulsars, most of which were included in the (100-200 MHz) LOFAR High-Band Survey, observed with Arecibo at 1.4 GHz and 327 MHz, and some observed at decametre wavelengths. Our analysis framework is the core/double-cone beam model, and we took opportunity to apply it as widely as possible, both conceptually and quantitatively, while highlighting situations where modelling is difficult, or where its premises may be violated. In the great majority of pulsars, beam forms consistent with the core/double-cone model were identified. Moreover, we found that each pulsar's beam structure remained largely constant over the frequency range available; where profile variations were observed, they were attributable to different component spectra and in some instances to varying conal beam sizes. As an Arecibo population, many or most of the objects tend to fall in the Galactic anticenter region and/or at high Galactic latitudes, so overall it includes a number of nearer, older pulsars. We found a number of interesting or unusual characteristics in some of the pulsars that would benefit from additional study. The scattering levels encountered for this group are low to moderate, apart from a few pulsars lying in directions more towards the inner Galaxy.2023MNRAS.520..314Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/520/314CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/489/1543 : Arecibo polarimetric single-pulse survey (Olszanski+, 2019)J/MNRAS/474/4629 : Polarimetry of 600 pulsars from 1.4GHz obs. (Johnston+,2018)J/MNRAS/391/1210 : Characteristics of energetic pulsars (Weltevrede+, 2008)J/MNRAS/372/777 : Parkes Multibeam Pulsar Survey. VI. (Lorimer+, 2006)J/ApJ/892/76 : The GBNCC pulsar survey. V. Pulsar census (McEwen+, 2020)J/ApJ/605/759 : Multifrequency obs. of radio pulse broadening (Bhat+, 2004)J/A+A/635/A76 : LOFAR census of pulsars at low frequenciesJ/A+A/635/A75 : LOFAR census of non-recycled pulsars sample (Bilous+, 2020)J/A+A/591/A134 : LOFAR census of non-recycled pulsars (Bilous+, 2016)J/A+A/586/A92 : Pulse profiles of 100 radio pulsars (Pilia+, 2016)J/A+A/469/607 : Pulsar subpulse modulation properties at 92cmJ/AZh/87/238 : Pulse profiles of radio pulsars at 102 and 111MHzJ/AZh/84/685 : Scattering of pulsar radio emission (Kuz'min+, 2007)B/psr : ATNF Pulsar Catalogue (Manchester+, 2005)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/520/314https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/520/314http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/520/314https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/520/314https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/520/314http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/520/314GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/520/314/tablea1 (*Arecibo observation and pulsation informations of our pulsars sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/520/314/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/520/314/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/520/314/tablea1?GETtext/xml+votable180.050000true1.519958318.58305560.0055555555555555566/233 314 389 1079 1257 2256 4164 4231 4335 4556 4598 4608 8539 8644 8676 8714 8964 9282-9283 12441 12565 12719 12747 12754 12767 12847 12870 12906 12993 13031 13040 13054 13088 13191 13198 13316 13460 13472 14379 14413 14441 14503 14635 14916 18136 18153 18288 18406 18421 18830 19421 19438 19880 20096 20171 20235 22118 22174 22205-22206 22271 22353 22426 22442 22996 23258 23620 23640 23643 23664 23983 24296 24361 24428 24460 24500 24541 26520 27067 27543 27794 28106 28108 30055 30303 30315 30325 30359 30361 30412 30461 30505 30517 30541 30545 30548 30572 30579 30582 30597-30598 30604 30651 31228 31591 31717 31775 31811 31842 31864 31870 31873 32010 32029 32040 32058 32077 32079 32121 32127 32140 32161 32194 32218 32452 32546 32548 32558 32647 32704https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/520/314?format=asciiMillimeterRadiodefaultJ/MNRAS/520/314/tablea1*Arecibo observation and pulsation informations of our pulsars samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePulsar name designation as JHHMM+DDMM (Pulsar)meta.id;meta.maincharPBarycentric period of the pulsar (P)stime.periodfloatDMPulsar dispersion measure (DM)pc.cm**-3phys.dispMeasure;instr.dispersionfloatRM? Pulsar rotation measure (RM)rad.m**-2phys.polarization.rotMeasurefloatnullableMJDl? Modified Julian date in L-band frequencies (JD-2400000.5) (MJD)dtime.epochintnullablen_MJDlNote on MJDl of J0538+2817 and J1813+1822 pulsarsmeta.notecharNpl? Number of observed pulses at L-band frequencies (N_pulses_) (1)meta.numberintnullableNbl? Number of bins used to observe the pulsar in L-band frequencies (Bins) (2)meta.number;em.binintnullableReflReference for L-band data in case of our poor or missing Arecibo observations (3)meta.bibcharMJDp? Modified Julian date in P-band frequencies (JD-2400000.5) (MJD)time.epochintnullableNpp? Number of observed pulses at P-band frequencies (N_pulses_) (4)meta.numberintnullableSimbadNameSimbad column added by the CDSmeta.idcharnullableNbp? Number of bins used to observe the pulsar in P-band frequencies (Bins) (2)meta.number;em.binintnullableRefpReference for P-band data in case of our poor or missing Arecibo observations (5)meta.bibcharRef100For low frequency <~100 MHz observations please consult the paper of origin as referenced (References) (6)meta.bibcharBilous16Display the LOFAR census of non-recycled pulsars of Bilous et al. 2016A&A...591A.134B, Cat. J/A+A/591/A134meta.ref.urlintnullableATNFDisplay the ATNF Pulsar Catalogue of Manchester et al. 2005AJ....129.1993M, Cat. B/psrmeta.ref.urlchar_RAPosition from simbad and from name for pulsar J1147+0829 (right ascension part)degpos.eq.ra;meta.main_DEPosition from simbad and from name for pulsar J1147+0829 (declination part)degpos.eq.dec;meta.mainJ/MNRAS/520/314/tablea2The physical spin down parameters of our pulsars sampleB12/P2? The pulsar acceleration potential parameter as (|B_surf_|*10^-12^/P^2^) as the ability of the pulsar to accelerate charged particles (B12/P^2^)phys.accelerationfloatnullable1/Q? The reciprocal Q parameter as 1/Q = 0.5(dP/dt)^0.4^_-15_/P^-1.1^ of Beskin et al. 1993ppm..book.....B (1/Q)stat.paramfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePulsar name designation as JHHMM+DDMM (Pulsar)meta.id;meta.maincharPBarycentric period of the pulsar (P)stime.periodfloatdP/dt? Period derivative spin-down rate (dP/dt)arith.rate;time.perioddoublenullabledE/dt? The spin-down energy loss rate (dE/dt)1e+25Wphys.energyfloatnullabletau? Pulsar scattering spin-down age as P/[dP/dt] ({tau})Myrtime.agefloatnullableBsurf? The surface magnetic flux density of the pulsar (B_surf_)1e+12Gphys.magFielddoublenullableJ/MNRAS/520/314/tablea3Core/double cone emission-beam model geometrical propertiesf_Wo100MFlag on Wo100M for ! means proportional tometa.codecharWo100M? The pulsar outer conal component width for the lowest frequency values in the 100-MHz or below bands beam-sizes band regime (Wo_<~100MHz_)degphys.angSize;phys.polarization;em.radio.20-100MHzfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_alpha1GNote b on magnetic colatitude of the beam {alpha} (2)meta.notecharf_alpha1GFlag on {alpha} values as ! means proportional to and #? means approximatively equal tometa.codecharalpha1G? Magnetic colatitude of the pulsar beam for the 1GHz geometry regime is angle between the rotation and magnetic axes (alpha_1GHz_)degpos.posAng;phys.polarization;em.radio.750-1500MHzfloatnullablef_R1GFlag on the polarization position angle PPA sweep rate R (3)meta.codecharR1G? The pulsar polarization position angle PPA sweep rate R for the 1GHz geometry regime (R_1GHz_)pos.posAng;phys.polarization;em.radio.750-1500MHzfloatnullablef_beta1GFlag on sightline impact angle beta for values as ! means proportional tometa.codecharbeta1G? The pulsar sightline impact angle {beta}=sin{alpha}/R showing how the sightline crosses the beam for the 1GHz geometry regime ({beta}_1GHz_) (4)degpos.posAng;phys.polarization;em.radio.750-1500MHzfloatnullablef_Wc1.4GFlag on core width Wc (3)meta.codecharWc1.4G? The pulsar core width for the 1.4 GHz beam-sizes band regime (Wc_1.4GHz_)degphys.angSize;phys.polarization;em.radio.750-1500MHzfloatnullablef_Wi1.4GFlag on Wi for ! means proportional tometa.codecharWi1.4G? The pulsar inner conal component width for the 1.4 GHz beam-sizes band regime (Wi_1.4GHz_)degphys.angSize;phys.polarization;em.radio.750-1500MHzfloatnullableri1.4G? The pulsar inner beam radii for the 1.4 GHz beam-sizes band regime ({rho}i_1.4GHz_)degphys.angSize;phys.polarization;em.radio.750-1500MHzfloatnullablef_Wo1.4GFlag on Wo for ! means proportional tometa.codecharWo1.4G? The pulsar outer conal component width for the 1.4 GHz beam-sizes band regime (Wo_1.4GHz_)degphys.angSize;phys.polarization;em.radio.750-1500MHzintnullablero1.4G? The pulsar outer beam radii for the 1.4 GHz beam-sizes band regime ({rho}o_1.4GHz_)degphys.angSize;phys.polarization;em.radio.750-1500MHzfloatnullablef_Wc327MFlag on core width Wc (3)meta.codecharWc327M? The pulsar core width for the 327 MHz beam-sizes band regime (Wc_327MHz_)degphys.angSize;phys.polarization;em.radio.200-400MHzfloatnullablef_Wi327MFlag on Wi327M (3)meta.codecharWi327M? The pulsar inner conal component width for the 327 MHz beam-sizes band regime (Wi_327MHz_)degphys.angSize;phys.polarization;em.radio.200-400MHzfloatnullableri327M? The pulsar inner beam radii for the 327 MHz beam-sizes band regime ({rho}i_Wi_327MHz_)degphys.angSize;phys.polarization;em.radio.200-400MHzfloatnullablef_Wo327MFlag on Wo327M (3)meta.codecharWo327M? The pulsar outer conal component width for the 327 MHz beam-sizes band regime (Wo_327MHz_)degphys.angSize;phys.polarization;em.radio.200-400MHzfloatnullablero327M? The pulsar outer beam radii for the 327 MHz beam-sizes band regime ({rho}o_327MHz_)degphys.angSize;phys.polarization;em.radio.200-400MHzfloatnullablef_Wi100MFlag on Wi100M for ! means proportional tometa.codecharWi100M? The pulsar inner conal component width for the lowest frequency values in the 100-MHz or below bands beam-sizes band regime (Wi_<~100MHz_)degphys.angSize;phys.polarization;em.radio.20-100MHzfloatnullableri100M? The pulsar inner beam radii for the lowest frequency values in the 100-MHz or below bands beam-sizes band regime ({rho}i_<~100MHz_)degphys.angSize;phys.polarization;em.radio.20-100MHzfloatnullablero100M? The pulsar outer beam radii for the lowest frequency values in the 100-MHz or below bands beam-sizes band regime ({rho}o_<~100MHz_)degphys.angSize;phys.polarization;em.radio.20-100MHzfloatnullableNamePulsar name designation as JHHMM+DDMM (Pulsar)meta.id;meta.maincharClassProfile class of the pulsar cone emission-beam as described in section 3 (Class) (1)meta.code.classchar