The temperature of the cosmic microwave background radiation at 3. 8 GHz - Results of a measurement from the South Pole site

Journal Article · Fri Nov 01 00:00:00 EST 1991 · Astrophysical Journal; (United States)

DOI:https://doi.org/10.1086/170656· OSTI ID:5800870

De amici, G; Limon, M; Smoot, G F; Bersanelli, M; Kogut, A; Levin, S ^[1]

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1. Lawrence Berkeley Laboratory, Berkeley, CA (USA) California University, Berkeley (USA) CNR, Istituto di Fisica Cosmica e Tecnologie Relative, Milan (Italy) NASA, Goddard Space Flight Center, Greenbelt, MD (USA) JPL, Pasadena, CA (USA)

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 {plus minus}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 {plus minus}0.06 K is obtained. 19 refs.

• OSTI ID: 5800870
• Journal Information: Astrophysical Journal; (United States), Journal Name: Astrophysical Journal; (United States) Vol. 381; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

661300* -- Other Aspects of Physical Science-- (1992-)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BACKGROUND RADIATION
COMPARATIVE EVALUATIONS
COOPERATION
EARTH ATMOSPHERE
ELECTROMAGNETIC RADIATION
EVALUATION
INTERNATIONAL COOPERATION
MICROWAVE RADIATION
NOISE
RADIATIONS
RELICT RADIATION
SATELLITES
TEMPERATURE MEASUREMENT