It displays a gravitational redshift that occurs either as particles enter and exit potential wells that stretch over time or at the surface of last scattering. Below about 218 gigahertz, its intensity falls due to interactions with high-energy electrons in an effect used to find galaxy clusters. Those phenomena cause anisotropies in this entity, once studied by COBE and now by WMAP. This phenomenon has a thermal black-bo
It displays a gravitational redshift that occurs either as particles enter and exit potential wells that stretch over time or at the surface of last scattering. Below about 218 gigahertz, its intensity falls due to interactions with high-energy electrons in an effect used to find galaxy clusters. Those phenomena cause anisotropies in this entity, once studied by COBE and now by WMAP. This phenomenon has a thermal black-body spectrum equivalent to about with a peak frequency of 160.2 gigahertz, giving a temperature of two point seven Kelvin. For 10 points, name this ubiquitous electromagnetic phenomenon, named for the part of the spectrum where it shows up, the residue of the Big Bang.
It displays a gravitational redshift that occurs either as particles enter and exit potential wells that stretch over time or at the surface of last scattering.
CMBR [or {cosmic} microwave {background radiation}]