Spectrum of the cosmic background radiation at millimeter wavelengths

The spectrum of the cosmic background radiation in five frequency bands extending from 2.3 to 11.0 cm with a balloon-borne liquid-helium-cooled photometer. The photometer compares the flux from the sky to the flux from an internal blackbody at 3.2 K. All five measurements are consistent with tempera...

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Bibliographic Details
Published in:Physical review letters 1985-07, Vol.55 (3), p.332-335
Main Authors: Peterson, J. B., Richards, P. L., Timusk, T.
Format: Article
Language:English
Subjects:
Astronomy
Cosmology
Earth, ocean, space
Exact sciences and technology
Observational cosmology (including hubble constant, distance scale, cosmological constant, early universe, etc.)
Space Radiation
Stellar systems. Galactic and extragalactic objects and systems. The universe
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Summary:The spectrum of the cosmic background radiation in five frequency bands extending from 2.3 to 11.0 cm with a balloon-borne liquid-helium-cooled photometer. The photometer compares the flux from the sky to the flux from an internal blackbody at 3.2 K. All five measurements are consistent with temperatures in the range 2.78 + or = 0.11 K, which is in good agreement with tempratures measured at lower frequencies. No significant deviation from a thermal spectrum was found.
ISSN:0031-9007
1079-7114
DOI:10.1103/PhysRevLett.55.332