Spectrum of the cosmic background radiation at millimeter wavelengths

Details Spectrum of the cosmic background radiation at millimeter wavelengths Spectrum of the cosmic background radiation at millimeter wavelengths

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985phrvl..55..332p&link_type=abstract

Physical Review Letters (ISSN 0031-9007), vol. 55, July 15, 1985, p. 332-335. NSERC-supported research.

Physics

43

Brightness Temperature, Cosmology, Radiation Spectra, Relic Radiation, Background Radiation, Balloon-Borne Instruments, Millimeter Waves

Scientific paper

The authors have measured the spectrum of the cosmic background radiation in five frequency bands extending from 2.3 to 11.0 cm-1 with a balloon-borne liquid-helium - cooled photometer. The photometer compares the flux from the sky to the flux from an internal blackbody at 3.2K. All five measurements are consistent with temperatures in the range 2.78±0.11K, which is in good agreement with temperatures measured at lower frequencies. The authors find no significant deviation from a thermal spectrum.

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