Results 51 to 60 of about 49,997 (277)
Magneto-optic effects of the cosmic microwave background
Nuclear Physics B, 2018 Generation of magneto-optic effects by the interaction of the CMB with cosmic magnetic fields is studied. Effects which generate polarization such as the Cotton–Mouton effect, vacuum polarization and photon–pseudoscalar mixing in external magnetic field ...
Damian Ejlli
doaj +1 more source
Cosmic microwave background theory. [PDF]
Proc Natl Acad Sci U S A, 1998 A long-standing goal of theorists has been to constrain cosmological parameters that define the structure formation theory from cosmic microwave background (CMB) anisotropy experiments and large-scale structure (LSS) observations. The status and future promise of this enterprise is described.
Bond JR.
europepmc +4 more sources
Observing Dirac neutrinos in the cosmic microwave background [PDF]
Physical Review D, 2019 Planned CMB Stage IV experiments have the potential to measure the effective number of relativistic degrees of freedom in the early Universe, $N_\text{eff}$, with percent-level accuracy.
K. Abazajian, J. Heeck
semanticscholar +1 more source
Primordial Non-Gaussianity in the Cosmic Microwave Background
Advances in Astronomy, 2010 In the last few decades, advances in observational cosmology have given us a standard model of cosmology. We know the content of the universe to within a few percent.
Amit P. S. Yadav, Benjamin D. Wandelt
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Unexpected topology of the temperature fluctuations in the cosmic microwave background [PDF]
Astronomy & Astrophysics, 2018 We study the topology generated by the temperature fluctuations of the cosmic microwave background (CMB) radiation, as quantified by the number of components and holes, formally given by the Betti numbers, in the growing excursion sets.
Pratyush Pranav +7 more
semanticscholar +1 more source
Limits on primordial black holes from $\mu$ distortions in cosmic microwave background [PDF]
, 2017 If primordial black holes (PBHs) form directly from inhomogeneities in the early universe, then the number in the mass range $10^6 -10^9M_{\odot}$ is severely constrained by upper limits to the $\mu$-distortion in the cosmic microwave background (CMB ...
T. Nakama, B. Carr, J. Silk
semanticscholar +1 more source
Polarization of Cosmic Microwave Background
Journal of Physics: Conference Series, 2016 6 pages, 4 figures, proceedings of the 6th Young Researchers Meeting, L'Aquila, Oct 12th-14th ...
BUZZELLI, ALESSANDRO +3 more
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A Measurement of the Cosmic Microwave Background B-mode Polarization Power Spectrum at Subdegree Scales from Two Years of polarbear Data [PDF]
, 2017 We report an improved measurement of the cosmic microwave background B-mode polarization power spectrum with the Polarbear experiment at 150 GHz. By adding new data collected during the second season of observations (2013–2014) to re-analyzed data from ...
T. C. C. P. Ade +80 more
semanticscholar +1 more source
Cosmic Microwave Background Polarization [PDF]
Annals of Physics, 1996 Replaced version corrects factor of 2 error in the Liouville equation.
Arthur Kosowsky, Arthur Kosowsky
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Non-Gaussianity and the Cosmic Microwave Background Anisotropies
Advances in Astronomy, 2010 We review in a pedagogical way the present status of the impact of non-Gaussianity (NG) on the cosmic microwave background (CMB) anisotropies. We first show how to set the initial conditions at second order for the CMB anisotropies when some primordial ...
N. Bartolo, S. Matarrese, A. Riotto
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