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The cosmic microwave background radiation [PDF]

open access: yesPhysics Reports, 2000
We summarize the theoretical and observational status of the study of the Cosmic Microwave Background radiation. Its thermodynamic spectrum is a robust prediction of the Hot Big Bang cosmology and has been confirmed observationally. There are now 76 observations of Cosmic Microwave Background anisotropy, which we present in a table with references.
Eric Gawiser, Joseph Silk, Joseph Silk
openaire   +3 more sources

Stringent Limit on Primordial Magnetic Fields from the Cosmic Microwave Background Radiation. [PDF]

open access: yesPhysical Review Letters, 2018
Primordial magnetic fields (PMFs), being present before the epoch of cosmic recombination, induce small-scale baryonic density fluctuations. These inhomogeneities lead to an inhomogeneous recombination process that alters the peaks and heights of the ...
K. Jedamzik, A. Saveliev
semanticscholar   +1 more source

Large disparity in cosmic reference frames determined from the sky distributions of radio sources and the microwave background radiation [PDF]

open access: yesPhysical Review D, 2019
The angular distribution of the Cosmic Microwave Background Radiation (CMBR) in sky shows a dipole asymmetry, ascribed to the observer's motion (peculiar velocity of the solar system!), relative to the local comoving coordinates.
A. Singal
semanticscholar   +1 more source

Probing Cosmic Inflation with the LiteBIRD Cosmic Microwave Background Polarization Survey [PDF]

open access: yesProgress of Theoretical and Experimental Physics, 2022
LiteBIRD the Lite (Light) satellite for the study of B-mode polarization and Inflation from cosmic background Radiation Detection, is a space mission for primordial cosmology and fundamental physics.
LiteBIRD Collaboration E. Allys   +185 more
semanticscholar   +1 more source

The cosmic microwave background radiation fluctuations from H i perturbations prior to reionization [PDF]

open access: yes, 2004
Loeb and Zaldarriaga have recently proposed that observations of the cosmic microwave background radiation (CMBR) brightness temperature fluctuations produced by H I inhomogeneities prior to reionization hold the promise of probing the primordial power ...
Somnath Bharadwaj, S. Ali
semanticscholar   +1 more source

Neutrinos And Big Bang Nucleosynthesis [PDF]

open access: yes, 2012
According to the standard models of particle physics and cosmology, there should be a background of cosmic neutrinos in the present Universe, similar to the cosmic microwave photon background.
Steigman, Gary
core   +4 more sources

THE COSMIC MICROWAVE BACKGROUND RADIATION* [PDF]

open access: yesAnnals of the New York Academy of Sciences, 1981
Because angular anisotropies and spectral distortions of the cosmic microwave background radiation are judged to be inevitable at some level, in a realistic cosmological model, the evidence for spectral distortions and its theoretical implications are described.
openaire   +2 more sources

Constraints on nonconformal couplings from the properties of the cosmic microwave background radiation. [PDF]

open access: yesPhysical Review Letters, 2013
Certain modified gravity theories predict the existence of an additional, nonconformally coupled scalar field. A disformal coupling of the field to the cosmic microwave background (CMB) is shown to affect the evolution of the energy density in the ...
C. van de Bruck, J. Morrice, S. Vu
semanticscholar   +1 more source

Anisotropic universes with isotropic cosmic microwave background radiation [PDF]

open access: yesClassical and Quantum Gravity, 2001
7 pages, no ...
John Wainwright   +2 more
openaire   +2 more sources

A New Measurement of the Cosmic Microwave Background Radiation Temperature at z = 1.97 [PDF]

open access: yes, 1996
We present detections of absorption from the ground state and excited states of C I in the z = 1.9731 damped Lyα system of the QSO 0013-004. The excitation temperature between the J = 0 and J = 1 fine-structure levels of C I is 11.6 ± 1.0 K.
J. Ge, J. Bechtold, J. Black
semanticscholar   +1 more source

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