The submillimeter spectrum of the cosmic background radiation

Details The submillimeter spectrum of the cosmic background radiation The submillimeter spectrum of the cosmic background radiation

Jun 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...329..567m&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 329, June 15, 1988, p. 567-571. Research supported by the Japan-U.S. Cooper

Astronomy and Astrophysics

Astronomy

151

Background Radiation, Radio Astronomy, Relic Radiation, Submillimeter Waves, Earth Atmosphere, Liquid Helium, Radiometers, Rocket-Borne Instruments

Scientific paper

The diffuse brightness of the sky has been measured in six submillimeter passbands, using a rocket-borne, liquid helium-cooled, absolute radiometer. The flux measured at 1160 microns is in good agreement with the average of longer wavelength measurements of the temperature of the cosmic background radiation. The fluxes measured at 709 microns and 481 microns show a rapid decrease toward shorter wavelength, but correspond to significantly higher temperatures. No local source of this excess flux has been identified. The spectrum of the excess significantly constrains cosmological models. Data at 262, 137, and 102 microns are consistent with emission from interstellar dust.

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