Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988apj...333l...1d&link_type=abstract
Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 333, Oct. 1, 1988, p. L1-L3.
Astronomy and Astrophysics
Astrophysics
7
Background Radiation, Cosmology, Flux Density, Microwaves, Black Body Radiation, Compton Effect, Cosmic Dust
Scientific paper
Recent observations indicate that, at high frequencies, the spectrum of the microwave background radiation deviates from that of a blackbody (Matsumoto et al., 1988). It is shown here that the spectrum of the microwave background radiation is well matched by the sum of two independent radiation fields, one backbody, and one graybody. This interpretation opens the possibility that the microwave background radiation possesses the same spectral shape today which it has at recombination; a possibility not allowed if the feature observed on the Wien side of the spectrum results from the Comptonization of an initially Planckian spectrum, or from dust emission. Such an interpretation could significantly alter or add present conceptions of the early universe.
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