Results 11 to 20 of about 54,682 (254)

Cosmic Microwave Background Radiation Anisotropy Induced by Cosmic Strings

, 1994
We report on a current investigation of the anisotropy pattern induced by cosmic strings on the cosmic microwave background radiation (MBR). We have numerically evolved a network of cosmic strings from a redshift of $Z = 100$ to the present and ...
Allen, B., Caldwell, R. R., Shellard, E. P. S., Stebbins, A., Veeraraghavan, S.   +4 more
core   +4 more sources

Spherical Shell Cosmological Model and Uniformity of Cosmic Microwave Background Radiation [PDF]

, 2012
Considered is spherical shell as a model for visible universe and parameters that such model must have to comply with the observable data. The topology of the model requires that motion of all galaxies and light must be confined inside a spherical shell.
Vlahovic, Branislav
core   +2 more sources

Partial Ly $$\alpha$$ α thermalization in an analytic nonlinear diffusion model [PDF]

Scientific Reports
During recombination, the cosmic background radiation is disturbed, in particular, by Lyman-alpha emissions from neutral hydrogen. It is proposed to account for the subsequent time-dependent partial thermalization of the Ly $$\alpha$$ α energy content in
Georg Wolschin
doaj   +2 more sources

Analyzing Earth's Position based on the Anisotropic Characteristics of Cosmic Microwave Background Radiation

JPFT (Jurnal Pendidikan Fisika dan Teknologi), 2023
This paper elaborates on the results of an exhaustive study regarding the Earth's position in the universe based on the Cosmic Microwave Background (CMB) radiation map, which is the latest discovery in modern astronomy.
Muhammad Khaidir Komala, Akhmad Aminuddin Bama, Supardi   +2 more
doaj   +1 more source

CLASS Observations of Atmospheric Cloud Polarization at millimeter Wavelengths

The Astrophysical Journal, 2023
The dynamic atmosphere imposes challenges to ground-based cosmic microwave background observation, especially for measurements on large angular scales.
Yunyang Li, John W. Appel, Charles L. Bennett, Ricardo Bustos, David T. Chuss, Joseph Cleary, Jullianna Denes Couto, Sumit Dahal, Rahul Datta, Rolando Dünner, Joseph R. Eimer, Thomas Essinger-Hileman, Kathleen Harrington, Jeffrey Iuliano, Tobias A. Marriage, Matthew A. Petroff, Rodrigo A. Reeves, Karwan Rostem, Rui Shi, Deniz A. N. Valle, Duncan J. Watts, Oliver F. Wolff, Edward J. Wollack, Zhilei Xu, CLASS Collaboration   +24 more
doaj   +1 more source

Future Prospects on Constraining Neutrino Cosmology with the Ali CMB Polarization Telescope

The Astrophysical Journal, 2023
We forecast the constraints on the parameters of neutrino physics with the constructions of Cosmic Microwave Background (CMB) temperature, E-mode polarization, and lensing spectra for the ground-based Ali Cosmic Microwave Background Polarization ...
Dongdong Zhang, Jia-Rui Li, Jiaqi Yang, Yufei Zhang, Yi-Fu Cai, Wenjuan Fang, Chang Feng   +6 more
doaj   +1 more source

Generative Models of Multichannel Data from a Single Example—Application to Dust Emission

The Astrophysical Journal, 2023
The quest for primordial B -modes in the cosmic microwave background has emphasized the need for refined models of the Galactic dust foreground. Here we aim at building a realistic statistical model of the multifrequency dust emission from a single ...
Bruno Régaldo-Saint Blancard, Erwan Allys, Constant Auclair, François Boulanger, Michael Eickenberg, François Levrier, Léo Vacher, Sixin Zhang   +7 more
doaj   +1 more source

Testing Cosmic Microwave Background Anomalies in E-mode Polarization with Current and Future Data

The Astrophysical Journal, 2023
In this paper, we explore the power of the cosmic microwave background (CMB) polarization ( E -mode) data to corroborate four potential anomalies in CMB temperature data: the lack of large angular-scale correlations, the alignment of the quadrupole and ...
Rui Shi, Tobias A. Marriage, John W. Appel, Charles L. Bennett, David T. Chuss, Joseph Cleary, Joseph R. Eimer, Sumit Dahal, Rahul Datta, Francisco Espinoza, Yunyang Li, Nathan J. Miller, Carolina Núñez, Ivan L. Padilla, Matthew A. Petroff, Deniz A. N. Valle, Edward J. Wollack, Zhilei Xu   +17 more
doaj   +1 more source

The cosmic microwave background radiation

Physics 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.
Gawiser, Eric, Silk, Joseph
openaire   +2 more sources

THE COSMIC MICROWAVE BACKGROUND RADIATION* [PDF]

Annals 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   +1 more source