Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...311..418s&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 311, Dec. 1, 1986, p. 418-424. Research supported by the Ministero della Pu
Astronomy and Astrophysics
Astrophysics
27
Background Radiation, Centimeter Waves, Diffuse Radiation, Galactic Cosmic Rays, Relic Radiation, Temperature Measurement, Calibrating, Error Analysis, Microwave Antennas, Radio Receivers
Scientific paper
The absolute temperature T(sky) of the diffuse radiation from the sky at 12 cm wavelength has been measured at various positions along declination +38 deg. At alpha = 23 h 08 m and delta = +38 deg, T(sky) = 2.94 + or - 0.14 K, the Galactic temperature = 0.22 + or - 0.18 K, and the CMB temperature = 2.72 + or - 0.15 K. The equivalent thermodynamic temperature of the CMB is 2.79 + or - 0.15 K. The separation between the Galactic background and the CMB background is discussed. The absence of large distortions adds new questions concerning the transition from the uniform universe where the CMB originated and the present universe where large matter condensations are present.
Bonelli Giulio
Sironi Giorgio
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