The microwave background radiation

Details The microwave background radiation The microwave background radiation

Jul 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992nuphs..28...38u&link_type=abstract

Nuclear Physics B Proceedings Supplements, Volume 28, Issue 1, p. 38-47.

Physics

Nuclear Physics

Scientific paper

The microwave background radiation is a remnant of the early Universe. It is blackbody radiation with a temperature TCBR = 2.735 +/- 0.060 (0.017) K and no measured spectral distortions. It is isotropic to (ΔT/T) < 5 × 10-5 over all angular scales, except for a dipole component which is attributed to our motion with respect to the preferred reference frame of the radiation.
A small-scale anisotropy has been detected towards a few dense clusters of galaxies that is attributed to inverse-Compton scattering of the photons of the background radiation by the hot gas that is responsible for the X-ray emission from these clusters. This is the Sunyaev-Zel'dovich effect.
The National Radio Astronomy Observatory is operated by Associated Universities, Inc., under cooperative agreement with the U.S. National Science Foundation.

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