Results 141 to 150 of about 1,960 (179)

Cosmic Microwave Background Fluctuations

2006
Several experiments have recently detected very low contrast, sub-horizon scale structures in the Cosmic Microwave Background (CMB). In the current cosmological model, these structures result from acoustic oscillations of the primeval plasma at recombination ( $z \sim 1100$ ).
MASI, Silvia, P. A. R. ADE, DE BERNARDIS, Paolo, J. J. BOCK, J. R. BOND, J. BORRILL, A. BOSCALERI, K. COBLE, C. R. CONTALDI, B. P. CRILL, G. DE TROIA, P. FERREIRA, K. GANGA, M. GIACOMETTI, E. HIVON, V. V. HRISTOV, A. IACOANGELI, A. H. JAFFE, W. C. JONES, A. E. LANGE, L. MARTINIS, P. MASON, P. D. MAUSKOPF, MELCHIORRI, Alessandro, T. MONTROY, NATI, FEDERICO, P. NATOLI, C. B. NETTERFIELD, PASCALE, ENZO, PIACENTINI, Francesco, D. POGOSYAN, G. POLENTA, F. PONGETTI, S. PRUNET, G. ROMEO, J. E. RUHL, F. SCARAMUZZI   +36 more
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The cosmic microwave background radiation

Reviews of Modern Physics, 1979
Radio Astronomy has added greatly to our understanding of the structure and dynamics of the universe. The cosmic microwave background radiation, considered a relic of the explosion at the beginning of the universe some 18 billion years ago, is one of the most powerful aids in determining these features of the universe. This paper is about the discovery
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Cosmic Microwave Background Radiation

Reviews of Modern Physics, 1999
Most astronomers and physicists now believe that we live in an expanding universe that evolved from an early state of extremely high density and temperature. Measurements of the spectrum and anisotropy of the cosmic microwave background radiation (CMBR) provide strong evidence supporting this picture. Today, the spectrum of the CMBR matches that of a 2.
Lyman Page, David Wilkinson
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Cosmic microwave background anisotropy

Nature, 1986
Current hypotheses for the origin of structure in the Universe lead to predictions of the amplitudes of anisotropies in the cosmic microwave background radiation. The dipole anisotropy is related to density fluctuations on large scales and to other determinations of our motion relative to distant galaxies.
Nick, Kaiser, Joseph, Silk
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Cosmic texture and the microwave background

Physical Review D, 1987
The isotropic cosmic microwave background may come from the antipode of a spatially closed, but
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The cosmic microwave background

New Astronomy Reviews, 2000
exaly   +2 more sources

The Cosmic Microwave Background

2016
The millimeter waveband, between about 0.3 mm and 1 cm (Figure 7.1), has given us wonderful insights into the nature and distribution of interstellar matter, via the carbon monoxide spectral lines (section 5.7) and emission from warm dust grains (section 6.7).
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The Cosmic Microwave Background

2018
The measurement of the acoustic modes of the cosmic microwave background have been perhaps the most exciting new astrophysical territory explored in the 21st century. This cosmological area includes the study of some of the earliest moments of the Universe, such as the significant change in state of going from a gas of ionized particles to one of atoms
Prasenjit Saha, Paul A. Taylor
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The Cosmic Microwave Background

2020
The cosmic microwave background (CMB) holds many secrets of the origin and the evolution of our universe. This ancient radiation was created shortly after the Big Bang, when the expanding universe cooled and became transparent, sending an afterglow of light in all directions.
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