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J/MNRAS/362/1189    Proper motions of 74 pulsars             (Zou+, 2005)

Timing measurements and proper motions of 74 pulsars using the Nanshan radio telescope. Zou W.Z., Hobbs G., Wang N., Manchester R.N., Wu X.J., Wang H.X. <Mon. Not. R. Astron. Soc., 362, 1189-1198 (2005)> =2005MNRAS.362.1189Z
ADC_Keywords: Pulsars ; Proper motions Keywords: methods: data analysis - astrometry - pulsars: general Abstract: We have measured the positions of 74 pulsars from regular timing observations using the Nanshan radio telescope at Urumqi Observatory between 2000 January and 2004 August (MJD 5150053240). Proper motions were determined for these pulsars by comparing their current positions with positions given in pulsar catalogues. We compare our results to earlier measurements in the literature and show that, in general, the values agree. New or improved proper motions are obtained for 16 pulsars. The effect of period fluctuations and other timing noise on the determination of pulsar positions is investigated. For our sample, the mean and rms transverse velocities are 443 and 224km/s, respectively, agreeing with previous work even though we determine distances using the new NE2001 electron density model. File Summary:
FileName Lrecl Records Explanations
ReadMe 80 . This file table1.dat 122 74 Positions of 74 pulsars from Nanshan timing observations and previously published positions table2.dat 119 74 *Comparison of pulsar proper motions derived from Nanshan timing results with previously published values refs.dat 79 10 References table3.dat 78 16 New and improved pulsar proper motions
Note on table2.dat: Proper motions are given as mas/yr on the sky, i.e. pmRA=(dRA/dt)cosDE
See also: : ATNF Pulsar Catalogue Home Page VII/189 : Catalog of Pulsars (Taylor+ 1995) J/MNRAS/273/411 : Multifrequency fluxes of 280 pulsars (Lorimer+ 1995) J/ApJS/121/171 : Arecibo polarimetry of 98 pulsars (Weisberg+, 1999) J/AZh/77/499 : Flux densities of 235 pulsars at 102.5MHz (Malofeev+, 2000) J/MNRAS/328/855 : Pulsar timing at UAO (Wang+, 2001) J/MNRAS/328/17 : Parkes Multi-Beam Pulsar Survey (Manchester+, 2001) J/MNRAS/335/275 : Parkes Multi-Beam Pulsar Survey new PSR (Morris+, 2002) J/MNRAS/342/1299 : Parkes Multi-Beam Pulsar Survey. III. (Kramer+, 2003) J/MNRAS/352/1439 : Parkes Multi-Beam Pulsar Survey. IV. (Hobbs+, 2004) J/MNRAS/353/1311 : Long-term timing observations of 374 pulsars (Hobbs+, 2004) J/MNRAS/360/974 : 233 pulsar proper motions (Hobbs+, 2005) Byte-by-byte Description of file: table1.dat
Bytes Format Units Label Explanations
1- 9 A9 --- PSRJ PSRJ designation 10 A1 --- Note [a] Note on error determination (1) 12- 18 A7 --- PSRB PSRB designation 20- 24 I5 d Epoch Epoch of the position measurement, in MJD 26- 27 I2 h RAh Right ascension (J2000), at Epoch 29- 30 I2 min RAm Right ascension (J2000), at Epoch 32- 38 F7.4 s RAs Right ascension (J2000), at Epoch 40- 45 F6.4 s e_RAs rms uncertainty on RA 47 A1 --- DE- Declination sign (J2000), at Epoch 48- 49 I2 deg DEd Declination (J2000), at Epoch 51- 52 I2 arcmin DEm Declination (J2000), at Epoch 54- 58 F5.2 arcsec DEs Declination (J2000), at Epoch 60- 64 F5.2 arcsec e_DEs rms uncertainty on DE 66- 68 I3 --- NTOA Number of TOAs in the nearly 5-yr data set 70- 73 F4.1 yr Tspan Time-span between the two position determinations. 75- 79 I5 d Epoch2 Published epoch, in modified Julian date 81- 82 I2 h RA2h Published Right ascension (J2000) 84- 85 I2 min RA2m Published Right ascension (J2000) 87- 93 F7.4 s RA2s Published Right ascension (J2000) 95-100 F6.4 s e_RA2s rms uncertainty on RA2 102 A1 --- DE2- Published Declination sign (J2000) 103-104 I2 deg DE2d Published Declination (J2000) 106-107 I2 arcmin DE2m Published Declination (J2000) 109-114 F6.3 arcsec DE2s Published Declination (J2000) 116-120 F5.3 arcsec e_DE2s rms uncertainty on DE2 122 I1 --- Ref Reference for previously published values (2)
Note (1): a: Quoted errors are three times the formal tempo values; others are two times the formal tempo values Note (2): References for the previously published as follows: 1 = Taylor et al. (1993ApJ...411..674T) 2 = Arzoumanian et al. (1994ApJ...422..671A) 3 = Johnston et al. (1995A&A...293..795J) 4 = Manchester et al. (1996MNRAS.279.1235M) 5 = Hobbs et al. (2004, Cat. J/MNRAS/353/1311)
Byte-by-byte Description of file: table2.dat
Bytes Format Units Label Explanations
1- 9 A9 --- PSRJ PSRJ designation 11- 17 A7 --- PSRB PSRB designation 19- 21 F3.1 kpc Dist Distance 23- 26 I4 mas/yr pmRA Calculated proper motion along right ascension 28- 30 I3 mas/yr e_pmRA rms uncertainty on pmRA 32- 35 I4 mas/yr pmDE Calculated proper motion along declination 37- 40 I4 mas/yr e_pmDE rms uncertainty on pmDE 42- 44 I3 mas/yr pmtot Calculated total proper motion 46- 49 I4 mas/yr e_pmtot rms uncertainty on pmtot 51- 56 F6.1 mas/yr pmRA1 ?=- Literature proper motion along right ascension from timing 58- 60 I3 mas/yr e_pmRA1 ? rms uncertainty on pmRAT 62- 67 F6.1 mas/yr pmDE1 ?=- Literature proper motion along declination from timing 69- 72 I4 mas/yr e_pmDE1 ? rms uncertainty on pmDET 74- 80 F7.2 mas/yr pmRA2 ?=- Literature proper motion along right ascension from interferometry 82- 84 I3 mas/yr e_pmRA2 ? rms uncertainty on pmRAT 86- 92 F7.2 mas/yr pmDE2 ?=- Literature proper motion along declination from interferometry 93- 95 I3 mas/yr e_pmDE2 ? rms uncertainty on pmDET 97- 98 I2 --- r_pmRA2 ?=- Reference for interferometric proper motions 100-103 F4.1 --- DpmRA ?=- Offset of pmRA from the most accurate of the previously pmRA 105-107 F3.1 --- DpmDE ?=- Offset of pmDE from the most accurate of the previously pmDE 109-113 I5 km/s Vt Transverse velocity 115-119 I5 km/s e_Vt rms uncertainty on Vt
Byte-by-byte Description of file: refs.dat
Bytes Format Units Label Explanations
1- 2 I2 --- Ref Reference number 4- 22 A19 --- BibCode BibCode 24- 40 A17 --- Aut Author's name 42- 79 A38 --- Com Comments
Byte-by-byte Description of file: table3.dat
Bytes Format Units Label Explanations
1 A1 --- --- [J] 2- 10 A9 --- PSRJ PSRJ designation 12 A1 --- --- [B] 13- 20 A8 --- PSRB PSRB designation 21- 24 I4 mas/yr pmRA Proper motion along right ascension 26- 28 I3 mas/yr e_pmRA rms uncertainty on pmRA 31- 34 I4 mas/yr pmDE Proper motion along declination 36- 38 I3 mas/yr e_pmDE rms uncertainty on pmDE 41- 43 F3.1 kpc Dist Distance 45- 48 I4 km/s VRA One-dimensional velocity determined from pmRA 50- 53 I4 km/s e_VRA rms uncertainty on VRA 56- 59 I4 km/s VDE One-dimensional velocity determined from pmDE 61- 64 I4 km/s e_VDE rms uncertainty on VDE 67- 72 F6.3 Myr tau Characteristic age 75- 78 F4.2 10+12G Bs Surface dipole magnetic field strength
History: From electronic version of the journal
(End) Patricia Vannier [CDS] 12-May-2006
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