Results 121 to 130 of about 15,151 (218)

Gravitational Lensing Effect on Cosmic Microwave Background

, 2007
Matter distribution in the Universe can cause the gravitational lensing effect, which would contaminate the cosmic microwave background (CMB) pattern we have observed today.
Wang, Fu-Cheng, 王富正
core  

Photon Propagation as a Probe for Fundamental Physics

, 2009
In this thesis we show how light propagation can be used in order to constrain particle physics models beyond the Standard Model. We study in particular the effects of non standard physics on the polarization of cosmic microwave background radiation ...
Galaverni, Matteo
core  

Kolmogorov complexity as a descriptor of cosmic microwave background maps

, 2002
The information theory approach is suggested to the Cosmic Microwave Background (CMB) problem for negatively curved homogeneous and isotropic Universe. Namely, the Kolmogorov complexity of anisotropy spots of Cosmic Microwave Background (CMB) radiation ...
V. G. Gurzadyan
core   +1 more source

Sensitive measurement of fluctuations in the cosmic microwave background

, 1987
Extensive high sensitivity observations of the cosmic microwave background have been made on an angular scale of 8° covering a substantial fraction of the northern sky.
Watson, R. A.; id_orcid, Hopkins, J., Beckman, J., Sanchez-Almeida, J., Davies, R. D., Daintree, E. J., Lasenby, A. N., Rebolo, R.   +7 more
core   +1 more source

The Cosmic Microwave Background Optical Depth Constrains the Duration of Reionization

The Astrophysical Journal Letters
Recently, it was pointed out that invoking a large value of the cosmic microwave background (CMB) optical depth, τ _CMB  = 0.09, could help resolve tensions between Dark Energy Survey Instrument DR2 baryon acoustic oscillation data and the CMB.
Christopher Cain, Alexander Van Engelen, Kevin S. Croker, Darby Kramer, Anson D’Aloisio, Garett Lopez   +5 more
doaj   +1 more source

Studying the Effects of Galactic and Extragalactic Foregrounds on Cosmic Microwave Background Observations

, 2018
Cosmic microwave background observations have been fundamental in forming the standard model of cosmology. Ongoing and upcoming cosmic microwave background experiments aim to confirm this model and push the boundaries of our knowledge to the very first ...
Abitbol, Maximilian H.
core   +1 more source

Cosmic Microwave Background Polarization and Inflation

, 2011
Measurements of the cosmic microwave background (CMB) offer a means to explore the universe at a very early epoch. Specifically, if the universe went through a brief period of exponential expansion called inflation as current data suggest, gravitational ...
Chuss, David T.
core  

Pre-inflation from the multiverse: can it solve the quadrupole problem in the cosmic microwave background? [PDF]

Eur Phys J C Part Fields, 2018
Morais J, Bouhmadi-López M, Krämer M, Robles-Pérez S.   +3 more
europepmc   +1 more source

Microwave SQUID Multiplexer Demonstration for Cosmic Microwave Background Imagers. [PDF]

Appl Phys Lett, 2017
Dober B, Becker DT, Bennett DA, Bryan SA, Duff SM, Gard JD, Hays-Wehle JP, Hilton GC, Hubmayr J, Mates JAB, Reintsema CD, Vale LR, Ullom JN.   +12 more
europepmc   +1 more source

Fast End-to-End Framework for Cosmological Parameter Inference from Cosmic Microwave Background Data Using Machine Learning

The Astrophysical Journal Letters
Precise estimation of cosmological parameters from the cosmic microwave background (CMB) remains a central goal of modern cosmology and a key test of inflationary physics.
Larissa Santos, Camila P. Novaes, Elisa G. M. Ferreira, Carlo Baccigalupi   +3 more
doaj   +1 more source