Astronomy and Astrophysics – Astrophysics
Scientific paper
Nov 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...381..341d&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 381, Nov. 1, 1991, p. 341-347. Research supported by ENEA and Fondazione An
Astronomy and Astrophysics
Astrophysics
28
Background Radiation, Cosmic Background Explorer Satellite, Microwave Emission, Brightness Temperature, Cosmic Noise, Earth Atmosphere, Noise Temperature
Scientific paper
As part of an international collaboration to measure the low-frequency spectrum of the cosmic microwave background (CMB) radiation, its temperature was measured at a frequency of 3.8 GHz, during the austral spring of 1989, obtaining a brightness temperature, T(CMB), of 2.64 +/-0.07 K (68 percent confidence level). The new result is in agreement with previous measurements at the same frequency obtained in 1986-88 from a very different site and has comparable error bars. Combining measurements from all years, T(CMB) = 2.64 +/-0.06 K is obtained.
Bersanelli Marco
de Amici Giovanni
Kogut Alan
Levin Steve
Limon Michele
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