J/MNRAS/353/1311 Long-term timing observations of 374 pulsars (Hobbs+, 2004)
Long-term timing observations of 374 pulsars.
Hobbs G., Lyne A.G., Kramer M., Martin C.E., Jordan C.
<Mon. Not. R. Astron. Soc., 353, 1311-1344 (2004)>
=2004MNRAS.353.1311H 2004MNRAS.353.1311H
ADC_Keywords: Pulsars ; Proper motions
Keywords: methods: data analysis - astrometry - pulsars: general
Abstract:
We present pulsar timing solutions for 374 pulsars. Each ephemeris
was obtained by analysing archival data stored at Jodrell Bank
Observatory. This data archive contains over 5600yr of pulsar
rotational history with individual data-spans of up to 34yr. A new
method has been developed to mitigate the effects of timing noise by
whitening the pulsar timing residuals.
Description:
The majority of pulse times of arrival (TOAs) were obtained using the
76-m Lovell Radio Telescope at Jodrell Bank Observatory. Results are
also included, for the brighter pulsars, from the 30-m MkII telescope
also situated at Jodrell Bank. The earliest TOAs for 18 pulsars
(between the years 1968 and 1981) were obtained from observations
using the NASA Deep Space Network (Downs & Reichley,
1983ApJS...53..169D 1983ApJS...53..169D).
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 47 24 List of observing frequencies from 1997 onwards for
the Lovell Telescope at Jodrell Bank Observatory
table2.dat 199 374 Measurements of the rate of change of rotational
slowdown for each pulsar
table4.dat 204 31 The orbital parameters for the binary pulsars
table6.dat 145 374 Astrometric measurements for 374 pulsars
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See also:
J/MNRAS/328/17 : Parkes Multi-Beam Pulsar Survey (Manchester+, 2001)
J/MNRAS/335/275 : Parkes Multi-Beam Pulsar Survey. II. (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)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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2- 5 I4 MHz Freq Frequency
7- 16 A10 "YYYY/MM/DD" SDate Start date
18- 27 A10 "YYYY/MM/DD" EDate End date
31- 32 I2 MHz BWT Total bandwidth
34 I1 --- Npol Number of polarisations
36 A1 --- --- [x]
38- 39 I2 MHz Nfilt Number of filter bank channels
41 A1 --- --- [x]
43- 47 F5.3 MHz BW Bandwidth of each channel
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Byte-by-byte Description of file: table2.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- PSRJ PSRJ designation (JHHMM-DDMMA)
12 A1 --- f_PSRJ [g] glitch was reported
13 A1 --- n_PSRJ [*] Timing noise flag (1)
15- 23 A9 --- PSRB PSRB designation
25- 26 I2 h RAh Right ascension (J2000.0)
28- 29 I2 min RAm Right ascension (J2000.0)
31- 38 F8.5 s RAs Right ascension (J2000.0)
40- 46 F7.5 s e_RAs rms uncertainty on RA
48 A1 --- DE- Declination sign (J2000.0)
49- 50 I2 deg DEd Declination (J2000.0)
52- 53 I2 arcmin DEm Declination (J2000.0)
55- 60 F6.3 arcsec DEs Declination (J2000.0)
62- 68 F7.3 arcsec e_DEs rms uncertainty on DEs
70- 86 F17.13 s-1 nu Rotational frequency
88-101 F14.13 s-1 e_nu rms uncertainty on nu
103-115 F13.7 10-15s-2 dnu/dt Frequency derivative dν/dt
118-126 F9.7 10-15s-2 e_dnu/dt rms uncertainty on dnu/dt
128-137 F10.6 10-24s-3 d2nu/dt2 Frequency second derivative d(ν/dt)/dt
139-147 F9.6 10-24s-3 e_d2nu/dt2 rms uncertainty on d2nu/dt2
149-157 F9.4 pc/cm3 DM Dispersion measure
159-165 F7.4 pc/cm3 e_DM rms uncertainty on DM
167-175 F9.5 pc/cm3/yr dDM/dt ? Dispersion measure derivative (2)
177-184 F8.5 pc/cm3/yr e_dDM/dt ? rms uncertainty on dDM/dt
186-192 F7.1 d Epoch MJD Epoch of the parameters, representing
the centre of the data-span
194-199 I6 us tRMSnw Final rms value of the non-whitened
timing residuals, in µs
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Note (1): Flag meaning:
g = pulsars that have been reported to glitch
* = pulsars whose timing residuals contain timing noise with
structures smaller than ∼1yr.
Note (2): Pulsars without d(DM)/dt measurements do not have TOAs measured
at different observing frequencies spread throughout the data-span.
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
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1- 10 A10 --- PSRJ PSRJ designation
11 A1 --- n_PSRJ [ED] Model used (1)
13- 20 A8 --- PSRB =- PSRB designation
22- 37 F16.11 d Per Orbital period
39- 51 F13.11 d e_Per rms uncertainty on Per
55- 64 F10.6 --- A1 Projected semimajor axis of the orbit,
in light-second
66- 72 F7.6 --- e_A1 rms uncertainty on A1
74- 82 F9.2 10-6 e Eccentricity
84- 90 F7.2 10-6 e_e rms uncertainty on e
92-103 F12.6 d T0 Epoch of periastron, in MJD
105-112 F8.6 d e_T0 rms uncertainty on T0
114-123 F10.5 deg Omega Longitude of periastron
125-133 F9.5 deg e_Omega rms uncertainty on Omega
135-143 F9.5 deg/yr dO/dt First derivative of Omega, dΩ/dt
145-152 F8.5 deg/yr e_dO/dt rms uncertainty on dO/dt
154-166 F13.7 d Tasc ?=- Ascending node, in MJD
168-175 F8.7 d e_Tasc ?=- rms uncertainty on Tasc
177-183 F7.1 10-6 EPS1 ?=- Model parameter, EPS1=e*sinΩ
184-190 F7.1 10-6 e_EPS1 ?=- rms uncertainty on EPS1
192-198 F7.1 10-6 EPS2 ?=- Model parameter, EPS2=e*cosΩ
199-204 F6.1 10-6 e_EPS2 ?=- rms uncertainty on EPS2
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Note (1): Model used as follows:
E = Pulsar were modelled using the ELL1 binary model. For these
pulsars the time of the ascending node and two other
parameters to describe the model are given
(EPS1=e*sinΩ and EPS2=e*cosΩ)
D = double neutron star binary systems modelled using the
DD binary model
(blank) other fits were carried out using the 'BT' model
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Byte-by-byte Description of file: table6.dat
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Bytes Format Units Label Explanations
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1- 11 A11 --- PSRJ PSRJ designation
12 A1 --- f_PSRJ [g] glitch flag
14- 22 A9 --- PSRB PSRB designation
24- 34 F11.7 deg ELON Ecliptic longitude
36- 43 F8.7 deg e_ELON rms uncertainty on ELON
45- 55 F11.7 deg ELAT Ecliptic latitude
57- 65 F9.7 deg e_ELAT rms uncertainty on ELAT
67- 72 F6.1 mas/yr pmELON ?=- Proper motion along ELON,
pm(ELON)*cos(ELAT)
74- 78 F5.1 mas/yr e_pmELON ? rms uncertainty on pmELON
80- 86 F7.1 mas/yr pmELAT ?=- Proper motion along ELAT
88- 93 F6.1 mas/yr e_pmELAT ? rms uncertainty on pmELAT
95-100 F6.1 mas/yr pmRA ?=- Proper motion along RA, pm(RA)*cos(DE)
102-106 F5.1 mas/yr e_pmRA ? rms uncertainty on pmRA
108-114 F7.1 mas/yr pmDE ?=- Proper motion along DE
116-121 F6.1 mas/yr e_pmDE ? rms uncertainty on pmDE
123-126 I4 mag/yr NTOA Number of time of arrival used in
the timming solution
128-134 F7.1 d Epoch Epoch of the position, in MJD
136-139 F4.1 yr Span Data-span
141-145 I5 us tRMS Final rms value for the timing residuals,
in µs
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History:
* 29-Mar-2005: From electronic version of the journal
* 10-Mar-2006: All pulsars between 0 and -1 degrees declination
missed the minus sign. This was corrected at CDS.
(End) Patricia Vannier [CDS] 29-Mar-2005