IRAS Large Galaxies Catalog

The Large Galaxy Catalog contains IRAS observations of 85 galaxies listed in RC2 with apparent blue light isophotal diameters (D_25) greater than 8 arcmin. Surface brightness maps at 12, 25, 60 and 100 microns are given in FITS format for each galaxy. There are only 83 sets of maps because NGC 205 and M 31 are in one field, as are M 81 and M 82. The maps were made using Pointed Observation data when these were available. An estimate of the diffuse zodiacal plus Galactic emission, derived locally, is subtracted in each case.

This dataset or service is made available by the Infrared Science Archive (IRSA) at IPAC, which is operated by the California Institute of Technology under contract with the National Aeronautics and Space Administration.