Measurements of the absolute temperature of the relic radiation observations at 0.6, 0.82 and 2.5 GHz from Alpe Gera and the South Pole

Details Measurements of the absolute temperature of the relic radiation observations at 0.6, 0.82 and 2.5 GHz from Alpe Gera and the South Pole Measurements of the absolute temperature of the relic radiation observations at 0.6, 0.82 and 2.5 GHz from Alpe Gera and the South Pole

Dec 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992ncimc..15..983s&link_type=abstract

Nuovo Cimento C, Serie 1 (ISSN 0390-5551), vol. 15 C, no. 6, p. 983-991.

Physics

2

Big Bang Cosmology, Errors, Relic Radiation, Temperature Measurement, Background Radiation, Cosmic Background Explorer Satellite, Radiation Spectra, Radiometers

Scientific paper

Results of measurements of the absolute temperature of the cosmic-background radiation (CBR) at low frequencies carried out under a joint Milano-Berkeley program are presented. Details of the observation procedures are discussed, and the accuracy of the results is evaluated. Two effects are noted at nu of 10 GHz or less: (1) the weighted mean of the values of Tth(CBR), (2.65 +/- 0.08), is marginally lower than (2.375 +/- 0.060), the value of Tth(CBR) measured by the Cosmic-Background Explorer at high frequencies and (2) within the error bars the distribution of T(CBR) versus nu is flat, but points apparently show a regular trend toward a decrease in temperature with nu down to a minimum between 3 and 1 GHz, followed by increases when nu goes below 1 GHz. Because of the large error bars, neither of the two effects is marginally significant.

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