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The Cosmic Microwave Background [PDF]
Symposium - International Astronomical Union, 1987 This review summarizes recent observational work on the cosmic microwave background, or 3 K radiation. Recent measurements of its spectrum and large-scale angular distribution are described, as well as searches for small angular scale fluctuations on arcsecond to degree scales.
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The cosmic microwave background [PDF]
Physics World, 2003 Cosmologists can lay claim to addressing some of the most dramatic problems that humankind has to face. In trying to find the origin of the universe and describe its subsequent evolution, it is not surprising that extravagant assertions are made. I sometimes feel that I belong to a legion of researchers suffering from delusions of grandeur.
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Cosmic Microwave Background from Effective Field Theory
Universe, 2019 In this work, we study the key role of generic Effective Field Theory (EFT) framework to quantify the correlation functions in a quasi de Sitter background for an arbitrary initial choice of the quantum vacuum state. We perform the computation in unitary
Sayantan Choudhury
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Optimization of a Microwave Polarimeter for Astronomy with Optical Correlation and Detection
Sensors, 2023 Cosmic Microwave Background (CMB) B-modes detection is the main focus of future CMB experiments because of the valuable information it contains, particularly to probe the physics of the very early universe. For this reason, we have developed an optimized
Guillermo Pascual-Cisneros +2 more
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IEEE Signal Processing Magazine, 2010 We aim to present a tutorial on the detection, parameter estimation and statistical analysis of compact sources (far galaxies, galaxy clusters and Galactic dense emission regions) in cosmic microwave background observations. The topic is of great relevance for current and future cosmic microwave background missions because the presence of compact ...
Diego Herranz, P. Vielva
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Polarization in the cosmic microwave background [PDF]
Brazilian Journal of Physics, 2006 Cosmic microwave background (CMB) studies underpin our understanding of the universe and its history. Until recently, we have relied principally on CMB temperature observations to build our standard cosmological model, but today the field forges ahead into its next frontier - CMB polarization anistropy.
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Self-Similar Symmetry Model and Cosmic Microwave Background
Frontiers in Applied Mathematics and Statistics, 2016 In this paper, we present the self-similar symmetry (SSS) model that describes the hierarchical structure of the universe. The model is based on the concept of self-similarity, which explains the symmetry of the cosmic microwave background (CMB).
Tomohide eSonoda
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Mosaicking with cosmic microwave background interferometers [PDF]
, 2006 Measurements of cosmic microwave background (CMB) anisotropies by interferometers offer several advantages over single-dish observations. The formalism for analyzing interferometer CMB data is well developed in the flat-sky approximation, valid for small
Cornwell T. J. +8 more
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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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Cosmic Microwave Background Anisotropies from Scaling Seeds: Fit to Observational Data [PDF]
Phys.Rev.Lett.79:5198-5201,1997, 1997 We compute cosmic microwave background angular power spectra for scaling seed models of structure formation. A generic parameterization of the energy momentum tensor of the seeds is employed. We concentrate on two regions of parameter space inspired by global topological defects: O(4) texture models and the large-N limit of O(N) models. We use $\chi^{2}
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