Balloon Measurements of the Far-Infrared Background Radiation
- 15 January 1973
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 7 (2), 326-344
- https://doi.org/10.1103/physrevd.7.326
Abstract
Measurements in five different passbands in the spectral region below 20 have been made with a liquid-helium-cooled radiometer in two flights at approximately 40-km altitude. The equivalent temperatures are , 2.8±0.2, 2.8±0.2, ≤2.7, ≤3.4°K in passbands of 1 to 5.4, 7.8, 7.9, 11.1, and 18.5 . The results are consistent with a 2.7°K thermal radiation background. Atmospheric radiation of uncertain magnitude dominates the region above 11 .
Keywords
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