Nature of the infrared sources in IRAS Circulars 2-4

Details Nature of the infrared sources in IRAS Circulars 2-4 Nature of the infrared sources in IRAS Circulars 2-4

Oct 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...139...64i&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 139, no. 1, Oct. 1984, p. 64-70.

Astronomy and Astrophysics

Astronomy

6

Astronomical Coordinates, Astronomical Photography, Far Infrared Radiation, Galaxies, Infrared Astronomy, Infrared Astronomy Satellite, Active Galaxies, Colorimetry, Galactic Nuclei, Radiant Flux Density

Scientific paper

Optical identification is obtained for 22 of the 57 unidentified sources in the Infrared Astronomical Satellite (IRAS) Circulars 2-4 with galaxies, and their positions are given. A comparison of their Far Infrared (FIR) flux density ratios with those of active galaxies indicates that they may be some type of active galaxy. Fourteen unidentified sources have similar flux density ratios as the optically identified IRAS galaxies. These may also be active galaxies.

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