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- W4247456719 abstract "A radiofrequency-gain total power radiometer measured the intensity of the cosmic microwave background (CMB) at a frequency of 1.47 GHz (20.4 cm wavelength) from White Mountain, California, in September 1988 and from the South Pole, Antarctica, in December 1989. The CMB thermodynamic temperature, TCMB, is 2.27 {plus minus} 0.25 K (68% C.L.) measured from White Mountain and 2.26 {plus minus} 0.21 K from the South Pole site. The combined result is 2.27 {plus minus} 0.19 K. The correction for galactic emission has been derived from scaled low-frequency maps and constitutes the main source, of error. The atmospheric signal is found by extrapolation from zenith scan measurements at higher frequencies. The result is consistent with previous low-frequency measurements, including a measurement at 1.41 GHz (Levin et al. 1988) made with an earlier version of this instrument. The result is {approximately}2.5 {sigma} ({approximately}l% probability) from the 2.74 {plus minus} 0.02,K global average CMB temperature." @default.
- W4247456719 created "2022-05-12" @default.
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- W4247456719 date "1991-11-01" @default.
- W4247456719 modified "2023-10-18" @default.
- W4247456719 title "Measurements of the cosmic microwave background temperature at 1. 47 GHz" @default.
- W4247456719 doi "https://doi.org/10.2172/7030940" @default.
- W4247456719 hasPublicationYear "1991" @default.
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