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Proceedings of the National Academy of Sciences of the United States of America logoLink to Proceedings of the National Academy of Sciences of the United States of America
. 1993 Jun 1;90(11):4766–4773. doi: 10.1073/pnas.90.11.4766

Scientific results from the Cosmic Background Explorer (COBE)

(microwave/infrared)

C L Bennett *, N W Boggess *, E S Cheng *, M G Hauser *, T Kelsall *, J C Mather *, S H Moseley Jr *, T L Murdock , R A Shafer *, R F Silverberg *, G F Smoot , R Weiss §, E L Wright
PMCID: PMC46596  PMID: 11607383

Abstract

The National Aeronautics and Space Administration (NASA) has flown the COBE satellite to observe the Big Bang and the subsequent formation of galaxies and large-scale structure. Data from the Far-Infrared Absolute Spectrophotometer (FIRAS) show that the spectrum of the cosmic microwave background is that of a black body of temperature T = 2.73 ± 0.06 K, with no deviation from a black-body spectrum greater than 0.25% of the peak brightness. The data from the Differential Microwave Radiometers (DMR) show statistically significant cosmic microwave background anisotropy, consistent with a scale-invariant primordial density fluctuation spectrum. Measurements from the Diffuse Infrared Background Experiment (DIRBE) provide new conservative upper limits to the cosmic infrared background. Extensive modeling of solar system and galactic infrared foregrounds is required for further improvement in the cosmic infrared background limits.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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