microwave background


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microwave background

microwave background

n
(Astronomy) a background of microwave electromagnetic radiation with a black-body spectrum discovered in 1965, understood to be the thermal remnant of the big bang with which the universe began
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This volume contains 40 papers from a 2003 symposium devoted to maps of the distribution of galaxies and of temperature fluctuations in the cosmic microwave background and what they can tell us about the structure, geometry, and evolution of the universe.
Washington, June 14 ( ANI ): Theories of the primordial Universe predict the existence of knots in the fabric of space - known as cosmic textures - which could be identified by looking at light from the cosmic microwave background (CMB), the relic radiation left over from the Big Bang.
Gurzadyan and Penrose have not found evidence for pre-Big Bang phenomena, but have simply rediscovered that the cosmic microwave background contains structure" the team notes.
Those would be the radio photons of the cosmic microwave background radiation.
This deviation has a theoretical explanation in the Doppler effect on the dipole (weak) component of the radiation, the true microwave background of the Universe that moves at 365 km/sec, if the monopole (strong) component of the radiation is due to the Earth.
That's because ultraviolet starlight would have shifted the hydrogen atoms' energy state, allowing them to absorb a particular wavelength out of the cosmic microwave background.
Gravitational lensing is a very useful tool for studying distant objects in space, but it can also create problems for astronomers who study the Cosmic Microwave Background - the omnipresent radiation from soon after the Big Bang, one of the few things which allow us to study the universe in its infancy.
He covers from the Big Bang, inflation and Big Bang issues, fluctuations to perturbations, the cosmic microwave background, large scale structure, and the Higgs boson and inflation.
Researchers used supernovas, cosmic microwave background radiation and patterns of galaxy clusters to measure the Hubble constant--the rate at which the universe expands--but their results were mismatched, Emily Conover reported in "Debate persists on cosmic expansion" (SN: 8/6/16, p.
On the other hand, if astronomers know how big the primordial ripples should be (found in cosmic microwave background fluctuations), and they measure how big the ripples appear on the sky, they can measure the distance directly.
These groundbreaking results came from observations by the BICEP2 telescope at the South Pole of the cosmic microwave background, a faint glow left over from the Big Bang.
Because the cosmic microwave background is a form of light, it exhibits all the properties of light, including polarization.

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