TitleThe Cosmic Microwave Background Spectrum from the Full COBE FIRAS Data Set
AuthorsFixsen, D. J.; Cheng, E. S.; Gales, J. M.; Mather, J. C.; Shafer, R. A.; Wright, E. L.
Bibcode1996ApJ...473..576F
AbstractWe have refined the analysis of the data from the FIRAS (Far-InfraRed Absolute Spectrophotometer) on board the COBE (COsmic Background Explorer). The FIRAS measures the difference between the cosmic microwave background and a precise blackbody spectrum. We find new, tighter upper limits on general deviations from a blackbody spectrum. The rms deviations are less than 50 parts per million of the peak of the cosmic mic ...
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