LAT Third Catalog of Gamma-ray Pulsars
Having discovered pulsations from nearly 300 rotation-powered pulsars, and steady point sources colocated with another 40 millisecond pulsars (MSPs), the Fermi LAT established pulsars as the dominant GeV gamma-ray source class in the Milky Way. Among them are dozens of young radio-quiet pulsars discovered via pulsations in LAT data, dozens of radio-loud young and recycled pulsars previously known from their radio pulsations, and dozens of MSPs detected in the radio following their discovery as unassociated LAT sources.
This catalog characterizes the known gamma-ray pulsars as uniformly as feasible using as much as 14 years of on-orbit data. The Third Fermi LAT Catalog of Gamma-ray Pulsars Catalog (3PC) paper details the catalog and its construction.
Catalog Data Products
- LAT Third Pulsar Catalog Paper
- Main catalog data file:
- README_Pulsars_3PC_Catalog+SEDs.txt
- Main catalog file (FITS format)
- Main catalog file (Excel format)
- Example Python script to read the catalog FITS file: Example_3PC_CatalogReader.py
- Catalog BROWSE table (under construction)
- Individual pulsar summary HTML pages
- Timing model files (par files):
- LAT SED plots for all pulsars:
- README_3PC_SEDs.txt
- Python script to generate SEDs from 3PC catalog: 3PC_SEDPlotter.py
- SED plots in single PDF file
- SED plots tar file (individual PDF, PNG, and ASCII files)
- Pulse profile (LC) data and plots for all pulsars:
- README_3PC_ProfileData.txt
- Pulse profile plots in tar files (PNG format)
- Pulse profile plots in tar files (PDF format)
- Pulse profile data in FITS and ASCII format
- Example python script that reads ProfileData FITS files: Example_3PC_PlotProfileData.py
- Energy resolved pulse profile fits in tar file (PNG format)
- Energy resolved pulse profile fits in tar file (PDF format)
- All-Sky Sensitivity map:
- README_3PC_SensitivityMap.txt
- 3PC_SensitivityMap_20230629.fits
- Python script to read map: Example_3PC_SensitivityMap.py
- Combined tar file of all of the above products
- Photon data files for each pulsar
- 3PC is now at the Fermi LAT Light Curve Repository (LCR). Scroll down to "Data Overlays" at the left and slide the 3PC button to "on". The 3PC will now appear as a tab under "Catalog Sources". Clicking on one of the Source IDs in the table will take you to the individual pulsar summary page.
- Updates for post-3PC pulsar discoveries
Again, for more information about the catalog see the LAT Third Pulsar Catalog Paper. Feedback about the catalog paper and electronic supplement should be directed to the paper contact authors: David Smith smith@cenbg.in2p3.fr, Philippe Bruel Philippe.Bruel@llr.in2p3.fr, Colin Clark colin.clark@aei.mpg.de, Lucas Guillemot lucas.guillemot@cnrs-orleans.fr, Matthew Kerr matthew.kerr@gmail.com, and Paul Ray paul.s.ray3.civ@us.navy.mil. All changes will be documented in the change log below.
LAT Third Pulsar Catalog Change Log
| Rev | Date | Filename | Change Description |
|---|---|---|---|
| 1 | 27 July 2023 | 3PC_Catalog+SEDs_20230727.fits | Initial Release |
| 2 | 03 Aug 2023 | 3PC_Catalog+SEDs_20230803.fits | 11 sources were missing data in SED plots. See README for details. |
| 3 | 19 Apr 2024 | 3PC_CatalogData_20240419.tgz,3PC_ProfileData_20240419.tgz, and README_3PC_ProfileData.txt | Fix ascii formatting that caused some numerical columns to overflow to ****** in the .asc files. |
| 4 | 21 July 2025 | 3PC_CatalogData_20250718.tgz, 3PC_ProfileData_20250718.tgz, and README_3PC_ProfileData.txt | Fix ascii formatting that truncated some numerical columns in the .asc files. |