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Detection of anisotropy in the cosmic blackbody radiation (1977)

Gorenstein, M. V. ; Muller, R. A. ; Smoot, G. F.

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Publication Date: 2011-08-17

Description: Anisotropy has been detected in the cosmic blackbody radiation with a 33-GHz (0.9 cm) twin-antenna Dicke radiometer flown to an altitude of 20 km aboard a U-2 aircraft. In data distributed over two-thirds of the Northern Hemisphere, an anisotropy is observed, which is well fitted by a first-order spherical harmonic with an amplitude of (3.5 plus or minus 0.6) x 10 to the -3rd deg K, and direction 11.0 plus or minus 0.6 h right ascension and 6 plus or minus 10 deg declination. This observation is readily interpreted as due to motion of the earth relative to the radiation with a velocity of 390 plus or minus 60 km/sec.

Keywords: SPACE RADIATION

Type: Physical Review Letters; 39; Oct. 3

Format: text

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