A General Gamma-Ray Source Catalog

compiled by D.J. Macomb1,2 & N. Gehrels1
(published in the February 1999 Astrophysical Journal Supplement, 120, 335)

The past several years have seen unprecedented growth in the field of gamma-ray astronomy. Highly successful missions such as the Compton Gamma-Ray Observatory (CGRO) have led to both a great increase in the number of detected gamma-ray sources and a more fundamental understanding of the basic physical processes involved for those sources. New ground-based observatories, the Rossi X-Ray Timing Explorer (RXTE), and the SIGMA instrument onboard the GRANAT spacecraft have all contributed to this explosion. Detailed observations of active galaxies, pulsars, accreting binaries, and diffuse emission have had a tremendous impact on our view of the diffuse emission have had a tremendous impact on our view of the Universe. Given that new experiments which will provide a similar increase in source numbers are several years away, it is a good time to take inventory of the state of gamma-ray astronomy. To this end, we have developed a general gamma-ray point-source catalog containing 309 objects which summarize the field. Gamma-ray astronomy, as we define it, includes photon energies from 50 keV to about 1 TeV. While many catalogs concentrate on a single type of astronomical object and/or a very restricted energy range, the nature of this catalog is somewhat different. The large variety of objects and the many orders of magnitude in energy space covered by gamma-ray astronomy presents an organizational challenge. We focus on two main types of information: a general listing of the basic characteristics of each source, and detailed tables of a representative sample of high energy observations. We also summarize the gamma-ray instruments whose observations are included in the catalog. Updates to this catalog will be made at this web site.

There are several ways to look at the updated catalog. The four sections below describe the various ways to access the catalog


Direct HTML Tables:

General Information Table - This table gives the basic list of gamma-ray sources and lists some of their basic properties

Observation Table - This is a list of relevant observations of each catalog source and encapsulates some of the results

Observation Notes - Further information on the observations found in the Observation Table.

Instrument Table - A basic list of the instruments whose results comprise the catalog.


EXCEL 97 File:

Coming soon!


XML Document with JAVA reader

Coming soon!



1 Laboratory for High Energy Astrophysics, NASA/GSFC, Greenbelt, MD 20771
2 Universities Space Research Association

Last Updated on 4/21/99
By Daryl Macomb
Email: macomb@heasarc.gsfc.nasa.gov/docs/cgro