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Distortions of the cosmic microwave background spectrum by dust


The cosmic microwave background spectrum supports the idea of a pre-galactic generation of stars. The distortions of the background spectrum from a black body can be due to emission by dust if a modest fraction of the mean cosmological density is present as silicate particles at epochs corresponding to redshift z 100. Whether the entire background can be explained as emission from dust is investigated.

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Rowan-Robinson, M., Negroponte, J. & Silk, J. Distortions of the cosmic microwave background spectrum by dust. Nature 281, 635–638 (1979).

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