cosmic background radiation

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cosmic background radiation

Unresolved radiation from space. The cumulative effect of many unresolved – and individually weak – discrete sources provides the background at radio, X-ray, and possibly other wavelengths. One important form is the microwave background radiation, which peaks at about 1 mm wavelength (i.e. a frequency of 3 × 1010 hertz). This is considered to be due to the hot Big Bang. See also COBE; gamma-ray astronomy; infrared background radiation; radio source; X-ray background radiation.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006

cosmic background radiation

[′käz·mik ¦bak‚grau̇nd ‚rād·ē‚ā·shən]
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
In the subsequent section, we also discuss plausible extension of this proposed unified statistics to include anisotropic effect, which may be observed in the context of Cosmic Microwave Background Radiation. In particular we consider possibility to introduce quaternionic momentum.
The 1964 discovery of the cosmic microwave background radiation by Arno A.
Otherwise they would have lost their energy by interacting with photons of the cosmic microwave background radiation. Somewhere, extremely powerful particle accelerators must be hiding in the relatively local universe.
Burbidge and his colleagues assert that their theory, known as quasi-steady state cosmology (QSSC), recently predicts the temperature of the cosmic microwave background radiation, a feat that the Big Bang model can't as yet accomplish.
Theory states that these particles cannot travel for billions of years and still pack such punch; collisions with photons of the cosmic microwave background radiation will slow them down.
The two teams presented their data in Italy at the International Conference on the Cosmic Microwave Background Radiation in Capri and the Gran Sasso Conference on Underground Particle Physics.
The fact that the universe contains about 100 percent of the critical density was dramatically proved in May by two studies of the cosmic microwave background radiation (July issue, page 24).
A string should make a difference in our perception of the temperature of the cosmic microwave background radiation on opposite sides of it.
Not only does Rees review the astrophysics of neutron stars, black holes, cosmological dark matter, the cosmic microwave background radiation, and cosmic strings (all subjects to which he has made significant research contributions); he also highlights the origin of the chemical elements, the nature of hypothetical wormholes, and the recent discoveries of planets around Sun-like stars.
When the Local Group's motion is measured against the cosmic microwave background radiation left over from the Big Bang - presumably the absolute standard of rest for the universe as a whole - we are going about 620 km per second in a direction nearly at right angles to the Lauer and Postman result.