The catalog of galaxies and quasars observed by IRAS (the "Extragalactic
Catalog") is a compilation of IRAS Point Source
Catalog data for objects appearing in the most widely-used
extragalactic catalogs. It contains 11,444 IRAS point sources that
can be positionally associated with cataloged galaxies and quasars,
and gives information on associations of point sources with sources
in the IRAS Small Scale Structure Catalog. Because
no criteria other than positional coincidence (with a generous search
window) were used to match the IRAS sources with their counterparts,
the associations should not a priori be accepted as true identifications.
Included in the Extragalactic Catalog are the associations of the
infrared sources with objects in twelve extragalactic catalogs, among
them the UGC, NGC, IC and MCG catalogs, the Arp Atlas, and the Markarian
and Zwicky catalogs.
This catalog is available on the ADC Selected Astronomical Catalogs, Volume 1 CD-ROM and via the ADC FTP server.
Version and release date: 2.1, 1989 June 5