Scientific objectives of IRAS

Details Scientific objectives of IRAS Scientific objectives of IRAS

Jan 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jbis...36....3c&link_type=abstract

British Interplanetary Society, Journal (Infra-Red Astronomical Satellite), vol. 36, Jan. 1983, p. 3-5.

Astronomy and Astrophysics

Astronomy

Infrared Astronomy Satellite, Spaceborne Astronomy, Astronomical Catalogs, Far Infrared Radiation, Infrared Astronomy, Infrared Spectra, Nonthermal Radiation

Scientific paper

The need for the IRAS mission is discussed, the objects and phenomena which the mission is particularly suited to investigate are described, the discoveries which may be made are speculated on. The main reasons for the lack of a far infrared survey up to now are summarized, including atmospheric absorption, telescope noise, and the excessive amount of time such a survey would require. The IRAS far infrared survey will therefore help correct a strong bias in the present view of the Universe toward objects known about from other wavelengths. The nature of thermal and nonthermal radiation is reviewed, since these comprise far infrared emission. IRAS will provide a 99.8 percent reliabile catalogue of objects which will be used as a source of objects for further study and as a base for statistical studies. About 60 percent of the available project time will be spent on the survey, with the rest going to special observations.

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