This database is based on the 1995 May 3 electronic version of the Taylor et
al. Pulsar Catalog and contains data on 706 pulsars, i.e., it contains 25%
more entries than the version published by Taylor et al. in 1993 ApJS. The
HEASARC obtained this electronic version from the Princeton University FTP
A printed version of the original catalog appeared in J. H. Taylor, R.
N. Manchester, and A. G. Lyne 1993, ApJS. 88, 529. This updated version
of the catalog should be referred to as J.H. Taylor, R.N. Manchester,
A.G. Lyne, and F. Camilo, 1995, unpublished. A full list of the references
used in the compilation of this database can be obtained as a gzipped
postscript file pulsar.refs.ps.gz from the directory heasarc/dbase/misc_files
in the anonymous FTP area of legacy.gsfc.nasa.gov.
PSR J1300+1240 = PSR B1257+12's has two binary orbits associated with it.
The parameters of the first binary orbit are listed in the database; those
of the second binary orbit are given below:
Name of the pulsar using the standard IAU method, based on J2000 coordinates.
Name of the pulsar using the standard IAU method, based on B1950 coordinates.
The right ascension of the pulsar.
The declination of the pulsar.
The galactic longitude of the pulsar.
The galactic latitude of the pulsar.
Uncertainty in the RA in arcseconds.
Uncertainty in the declination in arcseconds.
Lower limit to the distance (from method other than dispersion) in kpc.
Upper limit to the distance (from method other than dispersion) in kpc.
Adopted distance in kpc.
Distance above or below the Galactic plane, z = distance * sin (bii)
A flag that describes whether the quoted distance is a measured value
(value=0), a lower limit (1), or an upper limit(2).
An estimate of the reliability of the distance on the lower side, where
a means best, b means good, c means fair, and d means poor.
An estimate of the reliability of the distance on the upper side, where
a means best, b means good, c means fair, and d means poor.
Proper motion in RA in milliarcseconds per year (mas/yr).
Uncertainty in proper motion in RA (mas/yr).
Proper motion in declination in milliarcseconds per year (mas/yr).
Uncertainty in proper motion in declination (mas/yr).
Epoch of position measurement in MJD.
Pulsar barycentric period in seconds.
Uncertainty in pulsar barycentric period.
Derivative of the barycentric period in units of seconds per second (s/s).
Uncertainty in the Derivative of the barycentric period.
Reference epoch for the timing parameters such as barycentric period in MJD.
Second time derivative of barycentric rotation frequency in s^-3.
Uncertainty in second time derivative of barycentric rotation frequency.
Log of the scattering time constant at 400 MHz in seconds.
Flag for Log_Tau_S, where 0 means a measured value, 1 means a lower limit, and
2 means an upper limit.
Sky background temperature at 408 MHz in K.
Dispersion measure in pc/cm^3.
Uncertainty in dispersion measure.
Rotation measure in radians/m^2.
Uncertainty in rotation measure.
Equivalent width of the integrated pulse profile (effective pulse width) in ms.
Pulse profile width at 50% of peak in ms.
Pulse profile width at 10% of peak in ms.
Time-averaged flux density at 400 MHz in mJy.
Time-averaged flux density at 600 MHz in mJy.
Time-averaged flux density at 1400 MHz in mJy.
ID for distance model: 1 = Taylor & Cordes (1993)
Set to 1 if the model distance is a lower limit, 0 otherwise.
Distance of pulsar calculated from DM and model of Galactic electron density,
according to Taylor & Cordes (1993), in kpc.
Log of the radio luminosity at 400 MHz in mJy kpc^2.
Log of surface dipole magnetic field strength B in Gauss.
log of characteristic age (0.5*P/Pdot) in years (zero if Pdot is not positive).
Log of total energy loss rate in erg/s.
Number of orbits for this pulsar.
Binary orbital period in days.
Uncertainty in binary orbital period.
Projected semi-major axis, a sin i, of orbit in seconds.
Uncertainty in projected semi-major axis, a sin i, of orbit.
Longitude of periastron, omega, of binary orbit in degrees.
Uncertainty in longitude of periastron, omega, of binary orbit.
Rate of advance of binary periastron in degrees/Julian yr.
Uncertainty in rate of advance of binary periastron.
Eccentricity of binary orbit.
Uncertainty in eccentricity of binary orbit.
Time of periastron passage of binary orbit in MJD.
Uncertainty in time of periastron passage of binary orbit.
Post-Keplerian (time-dilation and gravitational-redshift) orbital parameter,
gamma, in seconds.
Uncertainty in post-Keplerian (time-dilation and gravitational-redshift) gamma
First time-derivative of binary orbital period in units of 10^-12.
Uncertainty in first time-derivative of binary orbital period.
Orbital inclination, sin(i).
Uncertainty in Orbital inclination, sin(i).
Orbital Shapiro-delay "range" parameter in microseconds.
Uncertainty in orbital Shapiro-delay "range" parameter.
Octal code for radio surveys in which this pulsar has been detected;
each survey has a unique code, the listed code being the sum of the
codes of all the surveys which detected the pulsar. e.g., a value of
111 = 100 + 10 + 1 means that it was detected in the Molonglo 1 (1),
Molonglo 2 (10), and Jodrell Bank 2 (100) surveys. The full key is
1 = Molonglo 1 (Vaughan & Large 1970, Nature 225, 167)
2 = Jodrell Bank 1 (Davies et al. 1977, MNRAS, 179, 635)
4 = Arecibo 1 (Hulse & Taylor 1975, ApJ, 201, L55)
10 = Molonglo 2 (Manchester et al. 1978, MNRAS, 185, 409)
20 = Green Bank 1 (Damashek et al. 1978, ApJ, 225, L31)
40 = Green Bank 2 (Dewey et al. 1985, ApJ, 294, L25)
100 = Jodrell Bank 2 (Clifton & Lyne 1986, Nature, 320, 43)
200 = Green Bank 3 (Stokes et al. 1986, ApJ, 311, 694)
400 = Arecibo 2 (Stokes et al. 1986, ApJ, 311, 694)
1000 = Parkes 1 (Johnston et al. 1992, MNRAS, 255, 401)
2000 = Arecibo 3 (Nice et al. 1995, ApJ, 449, 156)
4000 = Parkes 70 (Manchester et al. 1996, 279, 1235)
10000 = Arecibo 4a (Camilo 1995, PhD thesis; Nice 1992, PhD thesis)
20000 = Arecibo 4b (Camilo 1995, PhD thesis)
40000 = Arecibo 4c (Ray et al. 1996, ApJ, 470, 1103)
100000 = Arecibo 4d (Ray et al. 1996, ApJ, 470, 1103)
200000 = Arecibo 4e (Foster et al. 1995, in Millisecond Pulsars.., p. 24)
400000 = Arecibo 4f (Anderson et al. 1995, in preparation)
The code 1000000 = Green Bank 4 (Sayer et al. 1997, ApJ, 474, 426)
was never implemented in the current database.
Octal code describing characteristics of this pulsar; each characteristic has
a unique code, the listed code being the sum of the codes of all the
characteristics of this pulsar. e.g., a value of 21 = 20 + 1
means that it is a millisecond pulsar (20) with an association with
a globular cluster (1). The full key is given below:
1 = Globular cluster association
2 = SNR association
4 = Glitches in period
10 = Binary or multiple pulsar
20 = Millisecond pulsar (P < 25 millisec)
40 = Recycled pulsar
100 = Radio interpulse
200 = Optical, X-ray or Gamma-ray pulsed emission
400 = Extragalactic pulsar
BROWSE classification type. All objects in this database have been assigned
the class of radio pulsar (1800).
Questions regarding the PULSAR database table can be addressed to the
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