ATNFPULSAR: Help
ATNFPULSAR  ATNF Pulsar Catalog 
The Australia Telescope National Facility (ATNF) Pulsar Catalog is a catalog
of known pulsars compiled by R.N. Manchester et al. and is descended from
pulsar database used for the paper "Catalog of 558 Pulsars" by J.H. Taylor,
R.N. Manchester and A.G. Lyne 1993, ApJS, 88, 529568. The current catalog
has been supplemented by inclusion of published data from more recent radio
surveys, in particular, the Parkes Multibeam (PM) Pulsar Survey (Manchester
et al. 2001, MNRAS, 328, 1735) [available at the HEASARC as the PMPULSAR
table] and the Swinburne Intermediate Latitude Pulsar Survey (Edwards et al.
2001, MNRAS, 326, 358374), both made using the ATNF Parkes 64m radio
telescope. Binary parameters for known binary pulsars are also included as
well as all available astrometric and spin parameter information for all
pulsars. The catalog includes all published rotationpowered pulsars.
Two separate small subsets of pulsars detected ONLY at high energies are also
included in the current table: the first group comprises Xray and gammaray
pulsars which are apparently powered by spindown energy, but which have not
been detected at radio wavelengths, while the second group contains
anomalous Xray pulsars (AXPs) and softgammaray repeaters (SGRs) for which
coherent pulsations have been detected. Accretionpowered pulsars such as
Her X1 and the recently discovered XRay millisecond pulsars such as SAX
J1808.43658 are not included in this table, however.
Many people have contributed to the compilation of the data contained in this
catalog and the database that it was derived from. The authors particularly
thank Andrew Lyne of the University of Manchester, Jodrell Bank Observatory,
David Nice of Princeton University, and Russell Edwards, then at Swinburne
University of Technology. The also acknowledge the efforts of
Warwick University students Adam Goode and Steven Thomas who compiled and
checked a recent version of the database. The original (summer 2003) database
at the ATNF website was compiled with the invaluable assistance of Maryam
Hobbs, while the ATNF web interface was designed and constructed by Albert
Teoh, a Summer Vacation Scholar at the ATNF in 2002/2003.
The authors would appreciate if anyone making use of this catalog in a
publication acknowledges the source of their information by quoting the
ATNF Pulsar Catalog website address of
http://www.atnf.csiro.au/research/pulsar/psrcat/
2005AJ....129.1993M
"The Australia Telescope National Facility Pulsar Catalogue" by
R.N. Manchester, G.B. Hobbs, A. Teoh and M. Hobbs 2005, AJ, 129, 1993
"ATNF Pulsar Catalog" by R.N. Manchester et al., at
http://www.atnf.csiro.au/research/pulsar/psrcat/
"Catalog of 558 Pulsars" by J.H. Taylor, R.N. Manchester and A.G. Lyne 1993,
ApJS, 88, 529568.
This database table was initially created by the HEASARC in January 2002,
revised in March 2002, and again revised in June 2003. It is currently based
on the table obtained from http://www.atnf.csiro.au/research/pulsar/psrcat/
The HEASARC table will be updated on a weekly basis whenever the original
ATNF database table is updated.
Name
Name of the pulsar using the standard designation for pulsars, based
on its J2000 coordinates.
Alt_Name
The alternative pulsar designation, based on its B1950 Coordinates,
where used.
Ref_Names
The reference code for the quoted pulsar designation(s).
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
RA
The Right Ascension of the pulsar in the selected equinox. The RA
is given in J2000 coordinates and to various precisions in the original ATNF
table, ranging from 1.0E08 seconds of time to 1 minute of time. The
HEASARC Browse system's builtin precession routines are not of astrometric
accuracy, and thus we recommend using the default J2000 equinox for
positions when querying this database. Even then, the RA's in this HEASARC
table are displayed only up to a precision of 0.0001 seconds of time; for
those specialized applications where a higher positional accuracy is desired,
users should consult the original version of these data at the
ATNF Pulsar group website, http://www.atnf.csiro.au/research/pulsar/psrcat/
RA_Error
The Right Ascension positional uncertainty (seconds).
Ref_RA
The reference code for the Right Ascension information.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Dec
The Declination of the pulsar in the selected equinox. The Declination
is given in J2000 coordinates and to various precisions in the original ATNF
table, ranging from 1.0E05 arcseconds to 1 arcminute. The
HEASARC Browse system's builtin precession routines are not of astrometric
accuracy, and thus we recommend using the default J2000 equinox for
positions when querying this database. Even then, the RA's in this HEASARC
table are displayed only up to a precision of 0.001 arcseconds; for
those specialized applications where a higher positional accuracy is desired,
users should consult the original version of these data at the
ATNF Pulsar group website, http://www.atnf.csiro.au/research/pulsar/psrcat/
Dec_Error
The Declination positional uncertainty (arcsec).
Ref_Dec
The reference code for the Declination information.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
PM_RA
The proper motion in Right Ascension (mas/yr).
PM_RA_Error
The uncertainty in the proper motion in Right
Ascension (mas/yr).
Ref_PM_RA
The reference code for the proper motion in Right Ascension.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
PM_Dec
The proper motion in Declination (mas/yr).
PM_Dec_Error
The uncertainty in the proper motion in Declination (mas/yr).
Ref_PM_Dec
The reference code for the proper motion in Declination.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Parallax
The annual parallax, in milliarcseconds (mas).
Parallax_Error
The uncertainty in the annual parallax (mas).
Ref_Parallax
The reference code for the parallax information.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Position_Epoch
The epoch at which the position was measured.
LII
The Galactic Longitude of the pulsar.
BII
The Galactic Latitude of the pulsar.
Period
The pulsar barycentric period, in seconds. This is given to various
precisions in the originating table, notice, up to more than 16 decimal
places. In this HEASARC table, the period is displayed (in character form)
exactly the way it is given at the ATNF Pulsar group website,
http://www.atnf.csiro.au/research/pulsar/psrcat/
Period_Error
The uncertainty in the pulsar barycentric period, in seconds.
Ref_Period
The reference code for the pulsar barycentric period.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Period_Dot
The first time derivative of the barycentric period (s/s, i.e.,
dimensionless).
Period_Dot_Error
The uncertainty in the time derivative of the
barycentric period (s/s, i.e., dimensionless).
Ref_Period_Dot
The reference code for the time derivative of the
barycentric period. The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Nu
The pulsar barycentric rotation frequency (Hz).
In this HEASARC table, the frequency is displayed (in character form)
exactly the way it is given at the ATNF Pulsar group website,
http://www.atnf.csiro.au/research/pulsar/psrcat/
Nu_Error
The uncertainty in the barycentric rotation frequency (Hz).
Ref_Nu
The reference code for the barycentric rotation frequency.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Nu_Dot
The (first) time derivative of the barycentric rotation frequency
(s^2).
Nu_Dot_Error
The uncertainty in the time derivative of the barycentric
rotation frequency (s^2).
Ref_Nu_Dot
The reference code for the time derivative of the barycentric
rotation frequency. The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Nu_Dot_2
The second time derivative of the barycentric rotation frequency
(s^3).
Nu_Dot_2_Error
The uncertainty in the second time derivative of the
barycentric rotation frequency (s^3).
Ref_Nu_Dot_2
The reference code for the second time derivative of
the barycentric rotation frequency. The key to these codes is available at
the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Nu_Dot_3
The third time derivative of the barycentric rotation frequency
(s^4).
Nu_Dot_3_Error
The uncertainty in the third time derivative of the
barycentric rotation frequency (s^4).
Ref_Nu_Dot_3
The reference code for the third time derivative of the
barycentric rotation frequency. The key to these codes is available at
the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Period_Epoch
The epoch of the period or frequency measurement.
DM
The pulsar dispersion measure (DM), in units of pc/cm^3.
DM_Error
The uncertainty in the pulsar dispersion measure, in units
of pc/cm^3.
Ref_Dm
The reference code for the dispersion measure.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
DM_Dot
The first time derivative of the dispersion measure (pc/cm^3/yr).
DM_Dot_Error
The uncertainty in the time derivative of the dispersion
measure (pc/cm^3/yr).
Ref_Dm_Dot
The reference code for the time derivative of the dispersion
measure. The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Rm
The pulsar rotation measure (RM), in units of radian/m^2.
Rm_Error
The uncertainty in the pulsar rotation measure (RM), in units
of radian/m^2.
Ref_Rm
The reference code for the rotation measure.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Pulse_Width_50
The width of the pulse at 50% of the peak (ms).
Note that pulse widths are a function of both observing frequency and
observational time resolution, so the quoted widths are illustrative only.
Refer to the original reference for details.
Ref_Pulse_Width_50
The reference code for the width of the pulse at 50%
of the peak. The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Pulse_Width_10
The width of the pulse at 10% of the peak (ms).
Note that pulse widths are a function of both observing frequency and
observational time resolution, so the quoted widths are illustrative only.
Refer to the original reference for details.
Ref_Pulse_Width_10
The reference code for the width of the pulse at 10%
of the peak. The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Tau_Scattering
The temporal broadening of the pulses at 1 GHz due to
interstellar ccattering (s).
Ref_Tau_Scattering
The reference code for the Tau_Scattering parameter.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Flux_400_MHz
The mean flux density at 400 MHz (mJy).
Flux_400_MHz_Error
The uncertainty in the mean 400MHz flux density (mJy).
Ref_Flux_400_MHz
The reference code for the mean 400MHz flux density.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Flux_1400_MHz
The mean flux density at 1400 MHz (mJy).
Flux_1400_MHz_Error
The uncertainty in the mean 1400MHz flux density
(mJy).
Ref_Flux_1400_MHz
The reference code for the mean 1400MHz flux density.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Spect_Index
The measured radio spectral index.
Spect_Index_Error
The uncertainty in the spectral index.
Ref_Spect_Index
The reference code for the spectral index.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Binary_Model
The binary model type: normally one of several recognized by
the pulsar timing program TEMPO. The various models used by this software
are described at
http://www.atnf.csiro.au/research/pulsar/tempo/ref_man_sections/binary.txt
T0
The epoch of periastron passage.
T0_Error
The uncertainty in the epoch of periastron passage (days).
Ref_T0
The reference code for the epoch of periastron passage.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Period_Bin
The orbital (binary) period of the pulsar (days).
Period_Bin_Error
The uncertainty in the binary period (days).
Ref_Period_Bin
The reference code for the orbital period of the pulsar.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
A1
The projected orbital semimajor axis if the pulsar is in a
binary system (light seconds).
A1_Error
The uncertainty in the projected orbital semimajor axis
(light seconds).
Ref_A1
The reference code for the projected orbital semimajor axis.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Omega
The longitude of periastron of the binary orbit (degrees).
Omega_Error
The uncertainty in the longitude of periastron of the binary
orbit (degrees).
Ref_Omega
The reference code for the orbital periastron longitude.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Eccentricity
The eccentricity of the binary orbit.
Eccentricity_Error
The uncertainty in the eccentricity of the binary orbit.
Ref_Eccentricity
The reference code for the eccentricity of the binary
orbit. The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Epoch_Asc
The epoch of the ascending node of the binary orbit.
Epoch_Asc_Error
The uncertainty in the epoch of the ascending node of
the binary orbit (days).
Ref_Epoch_Asc
The reference code for the epoch of the ascending node of
the binary orbit. The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Epsilon_1
The parameter Eccentricity * sin(Omega) for the ELL1 binary
model.
Epsilon_1_Error
The uncertainty in the Epsilon_1 parameter.
Ref_Epsilon_1
The reference code for the Epsilon_1 parameter.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Epsilon_2
The parameter Eccentricity * cos(Omega) for the ELL1 binary
model.
Epsilon_2_Error
The uncertainty in the Epsilon_2 parameter.
Ref_Epsilon_2
The reference code for the Epsilon_2 parameter.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Min_Mass
The minimum companion mass for pulsars in binary systems, assuming
an orbital inclination i=90 degrees and a neutron star mass of 1.35 Solar Mass
Units (Solar Mass Units)..
Median_Mass
The median companion mass for pulsars in binary systems,
assuming an orbital inclination i=60 degrees (Solar Mass Units).
Distance
The best estimate of the (heliocentric) distance to the pulsar
(kpc).
DM_Distance_Limit
A flag parameter which is set to '>' to indicate
that the quoted value of the Dm_distance parameter is a lower limit to
the actual value.
DM_Distance
The distance based on the Taylor & Cordes (1993, ApJ, 411, 674)
electron density model (kpc).
DM_Sin_BII
The parameter DM*sin(bii) (pc/cm^3).
Z_Distance
The pulsar's distance from the Galactic Plane, based on the
quoted heliocentric distance.
X_Distance
The pulsar's XDistance in the XYZ Galactic coordinate system
(kpc).
Y_Distance
The pulsar's YDistance in the XYZ Galactic coordinate system
(kpc).
Assoc_Object
The names of other objects, for example supernova remnants or
globular clusters, associated with the pulsar.
Discovery_Survey
The survey code(s) corresponding to the surveys in which
the pulsar was detected (the discovery survey is listed first).
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_help.html#surveys
Discovery_Date
The date of the discovery publication (calendar year).
Pulsar_Type
The type code for the pulsar.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_help.html#psr_types
Ref_Pulsar_Type
The reference code for pulsar type.
The key to these codes is available at the ATNF website:
http://www.atnf.csiro.au/research/pulsar/psrcat/psrcat_ref.html
Number_Glitches
The number of glitches observed for the pulsar.
Luminosity_400_MHz
The radio luminosity at 400 MHz (mJy kpc^2).
Luminosity_1400_MHz
The radio luminosity at 1400 MHz (mJy kpc^2).
Age
The spindown age of the pulsar (0.5*Period/Period_dot, in years).
B_Surf
The surface magnetic flux density of the pulsar
(3.2*10^19 * (Period*Period_dot)^0.5), in Gauss).
E_Dot
The spindown energyloss rate of the pulsar (erg/s).
E_Flux
The energy flux at the Sun (ergs/cm^2/s).
PM_Tot
The total proper motion of the pulsar (mas/yr).
PM_Tot_Error
The uncertainty in the total proper motion (mas/yr).
Transverse_Velocity
The transverse velocity of the pulsar, based on the
the quoted Distance value (km/s).
Corr_Period_Dot
The pulse period derivative corrected for the proper
motion effect (s/s, i.e., dimensionless).
Corr_Age
The corrected spindown age using Corr_Period_Dot (years).
Corr_B_Surf
The corrected surface magnetic dipole field using
Corr_period_dot (Gauss).
B_Lc
The magnetic field at the light cylinder (Gauss).
Class
The HEASARC Browse object classification based on the value of
the pulsar_type_parameter.
Questions regarding the ATNFPULSAR database table can be addressed to the
HEASARC User Hotline.
If you have any problems, please consult the help
page or mail ledashelp@star.le.ac.uk
