Microwave Background
Exploring The Universe With The Atacama Cosmology Telescope: Polarization-Sensitive Measurements Of The Cosmic Microwave Background
... The now standard ΛCDM model of cosmology has been increasingly refined with measure- ments of the cosmic microwave background (CMB), most recently by the Planck satellite (Planck Collaboration et al. 2014a ...
170
Measurement of the Polarization of the Cosmic Microwave Background with the BICEP2 and Keck Array Telescopes
... Precision polarimetry of the cosmic microwave background (CMB) has become a mainstay of observational cosmology. The ΛCDM model predicts a polarization of the CMB at the level of a few µK, with a charac- ...
152
Balloon-borne Cosmic Microwave Background experiments
... The Cosmic Microwave Background (CMB) is a faint background of thermal mm-wave photons, filling the entire Universe. These photons where generated a few milliseconds after the big bang, when matter ...
7
Cosmological parameters from velocities, cosmic microwave background and supernovae
... Cosmic Background Explorer (COBE) normalized cold dark matter (CDM) models and Gaussian fluctuations and ...cosmic microwave background (CMB) depend on the state of the universe at the epoch of ...
8
A Measurement of the Angular Power Spectrum of the Cosmic Microwave Background with a Long Duration Balloon borne Receiver
... A Measurement of the Angular Power Spectrum of the Cosmic Microwave Background with a Long Duration Balloon-borne Receiver Thesis by Brendan P.. In Partial Ful..[r] ...
136
Large Scale Cosmic Microwave Background Anisotropies and Dark Energy
... Observations of distant supernovae give strong indica- tions that the expansion of the universe is accelerating (Perlmutter et al. 1997; Riess et al. 1998; Perlmutter et al. 1999; Riess et al. 2001). This is consistent ...
7
Bayesian factor analysis using Gaussian mixture sources, with applicatin to separation of the cosmic microwave background
... In this paper a fully Bayesian factor analysis model is devel- oped that assumes a very general model for each factor, namely the Gaussian mixture. We discuss the cases where factors are both independent and dependent. ...
5
Fully Bayesian source separation with application to the cosmic microwave background
... the microwave radiation maps to be obtained by the satellite mission Planck which has the objective of uncovering cosmic microwave background ...
12
A Search for Cosmic Microwave Background Anisotropies on Arcminute Scales
... cosmic microwave background (CMB) radiation that is nearly isotropic with a blackbody temperature of ≃ 5 K ...This background radiation was finally detected in 1965 by Arno Penzias and Robert Wilson, ...
251
Gravitational Energy Level and the Nature of Microwave Background of Universe
... 4) It should be stressed that there are several inde- pendent methods of deducing the Planck radiation for- mula for blackbody radiation spectrum, and a necessary requirement for it is discreteness of the spectrum of the ...
13
Semi analytic calculation of cosmic microwave background anisotropies from wiggly and superconducting cosmic strings
... We study how the presence of world-sheet currents affects the evolution of cosmic string networks, and their impact on predictions for the cosmic microwave background (CMB) anisotropies generated by these ...
20
Dark Energy Stars and the Cosmic Microwave Background
... Cosmological models with a large cosmological constant are unstable due to quantum critical fluctuations at the de Sitter horizon. Due to this instability the space-time in these models will quickly evolve into a ...
7
Measuring the Polarization of the Cosmic Microwave Background with BICEP3
... According to the Hot Big Bang model, the early Universe had a temperature and density much higher than today. At a time about 380,000 years after the Big Bang; a plasma of protons, electrons and photons existed in ...
148
Studying Heavy Ion Collisions Using Methods From Cosmic Microwave Background (CMB) Analysis
... Abstract. We present and discuss a framework for studying the morphology of high- multiplicity events from relativistic heavy ion collisions using methods commonly em- ployed in the analysis of the photons from the ...
9
Transformation of the Angular Power Spectrum of the Cosmic Microwave Background (CMB) Radiation into Reciprocal Spaces and Consequences of This Approach
... A formalism of solid state physics has been applied to provide an additional tool for the research of cosmo- logical problems. It is demonstrated how this new approach could be useful in the analysis of the Cosmic ...
17
A High Resolution Measurement of Temperature Anisotropies in the Cosmic Microwave Background Radiation with the Complete ACBAR Data Set
... The performance of the filter stack that sets the upper edge of band-pass is critical to ACBAR’s success. Hitting the water line at 183 GHz would be catastrophic. Two different filter stacks were used for the 150 GHz ...
158
Comptonization of the cosmic microwave background by relativistic plasma
... Remnant Radio Plasma The presence of radio plasma produces all three SZ effects discussed in this paper: The expanding lobes of radio galaxies RGs and radio-loud quasars compress and may[r] ...
15
Data analysis of and results from observations of the cosmic microwave background with the Cosmic Background Imager
... In this thesis, we have discussed observations of the Cosmic Microwave Backgroud with the Cosmic Background Imager. The CBI is a highly sensitive interferometer working at 30 GHz optimized for observations ...
167
Observation of Cosmic Microwave Background Polarization with BICEP
... of three corrugated microwave feed horns that couple incoming radiation to a pair of PSBs. The lower edge of the frequency band pass for each pixel is defined by the waveguide cut-off imposed by the horn directly ...
156
A limit on the polarization of the cosmic microwave background radiation
... The latter set of tests is unique to this analysis; for total intensity observations we must consider the effects of errors in the gain amplitude GA and gain phase Gφ on the results, but[r] ...
308