cosmic microwave background radiation

(redirected from Relic radiation)
Also found in: Thesaurus.
Related to Relic radiation: cosmic microwave background radiation

cosmic microwave background radiation

n.
Microwave radiation that penetrates space throughout the universe, postulated to be residual electromagnetic radiation originally emitted by warm matter in the universe approximately 400,000 years after the Big Bang. Also called cosmic background radiation, cosmic microwave background, microwave background.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cosmic microwave background radiation - (cosmology) the cooled remnant of the hot big bang that fills the entire universe and can be observed today with an average temperature of about 2.725 kelvin
cosmogeny, cosmogony, cosmology - the branch of astrophysics that studies the origin and evolution and structure of the universe
cosmic radiation - radiation coming from outside the solar system
References in periodicals archive ?
It is believed that the upper limit of cosmic-ray energy is limited by a threshold of 5 x [10.sup.19] eV, because cosmic ray particles interact energetically with relic radiation, which leads to their absorption and reduction of their energy to a threshold value at distances of the order of several tens of megaparsecs (Greisen-Zatsepin-Kuzmin effect) [2,3].
On the satellite <<COBE>>, a microwave relic radiation spectrometer with a high resolving power was installed, which makes it possible to estimate the degree of isotropy of this radiation [7], Already the first measurements with the help of the satellite equipment <<COBE>> of cosmic microwave background radiation have shown that it completely corresponds to the spectrum of the equilibrium radiation of the ABB (the <<spontaneous>> spectrum of electromagnetic radiation).
The main goal of Planck is to provide the most precise map of the relic radiation of the Big Bang, the cosmic microwave background.
Exoplanets that orbit far beyond the habitable zone may have been able to support life in the distant past, warmed by the relic radiation left over from the Big Bang that created the universe 13.8 billion years ago, said astrophysicist Abraham Loeb from the Harvard University.
This relic radiation reveals the universe as it was 380,000 years after it began, and contains clues about the first moments of the cosmos.
London, Oct 24 ( ANI ): ESA's Planck space telescope has been switched off after nearly 4.5 years soaking up the relic radiation from the Big Bang and studying the evolution of stars and galaxies throughout the history of the Universe.
It depicts Cosmic Microwave Background (CMB) or relic radiation at a point 380,000 years after the Big Bang, as the newly formed Universe started cooling down.
377,730 years (+3,205/-3,200): Time after the Big Bang when photons stopped interacting with charged matter and produced the relic radiation known as the cosmic microwave background.
In the background, the mottled yellow features are relic radiation, called the Cosmic Microwave Background, which contains information about the earliest stages of the universe
Professor Hawking explained, "A key research area of our consortium is the scientific exploration of the cosmic microwave background, the relic radiation left over from the Big Bang fireball, usually just called the CMB.
2 ( ANI ): Astronomers used telescope in Antarctica and ESA's Herschel space observatory to detect a subtle twist in the relic radiation from the Big Bang, which could reveal the first moments of the Universe's existence.