Results 21 to 30 of about 140,038 (258)

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

Quantum to Classical Transition from the Cosmic Background Radiation [PDF]

, 2000
We have revisited the Ghirardi-Rimini-Weber-Pearle (GRWP) approach for continuous dynamical evolution of the state vector for a macroscopic object. Our main concern is to recover the decoupling of the state vector dynamics for the center-of-mass (CM) and
A. Isar, A. O. Caldeira, A. O. Caldeira, C. Cohen-Tannoudji, C. M. Caves, E. Joos, E. P. Wigner, G. C. Ghirardi, G. C. Ghirardi, G. C. Ghirardi, G. J. Milburn, G. Lindblad, J. Mather, J. von Neumann, K. Blum, L. Diosi, M. C. de Oliveira, M. H. Y. Moussa, M. H. Y. Moussa, M. O. Scully, M. S. Turner, N. G. Almeida, N. Gisin, P. Grigolini, P. Pearle, P. Pearle, S. S. Mizrahi, V. B. Braginsky, W. G. Unruh, W. H. Zurek, W. H. Zurek, W. H. Zurek   +31 more
core   +2 more sources

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

The cosmic background radiation circa ν2K [PDF]

Nuclear Physics B - Proceedings Supplements, 2001
We describe the implications of cosmic microwave background (CMB) observations and galaxy and cluster surveys of large scale structure (LSS) for theories of cosmic structure formation, especially emphasizing the recent Boomerang and Maxima CMB balloon experiments.
Bond, J. R., Pogosyan, D., Prunet, S., collaboration, the MaxiBoom, Ade, P., Balbi, A., Bock, J., Borrill, J., Boscaleri, A., Coble, K., Crill, B., de Bernardis, P., Farese, P., Ferreira, P., Ganga, K., Giacometti, M., Hanany, S., Hivon, E., Hristov, V., Iacoangeli, A., Jaffe, A., Lange, A., Lee, A., Martinis, L., Masi, S., Mauskopf, P., Melchiorri, A., Montroy, T., Netterfield, B., Oh, S., Pascale, E., Piacentini, F., Rabii, B., Rao, S., Richards, P., Romeo, G., Ruhl, J., Scaramuzzi, F., Sforna, D., Smoot, G., Stompor, R., Winant, C., Wu, P.   +42 more
openaire   +2 more sources

Capturing Statistical Isotropy Violation with Generalized Isotropic Angular Correlation Functions of Cosmic Microwave Background Anisotropy

The Astrophysical Journal, 2023
The exquisitely measured maps of fluctuations in the cosmic microwave background (CMB) present the possibility of systematically testing the principle of statistical isotropy of the Universe. A systematic approach based on strong mathematical formulation
Dipanshu, Tarun Souradeep, Shriya Hirve
doaj   +1 more source

Conformal Invariance and Cosmic Background Radiation

, 1996
The spectrum and statistics of the cosmic microwave background radiation (CMBR) are investigated under the hypothesis that scale invariance of the primordial density fluctuations should be promoted to full conformal invariance.
A. A. Starobinsky, A. Guth, A. M. Polyakov, C. L. Bennett, E. R. Harrison, Emil Mottola, G. V. Chibisov, I. Antoniadis, I. Antoniadis, I. Antoniadis, Ignatios Antoniadis, J. M. Bardeen, J. R. Bond, K. G. Wilson, M. J. Duff, P. J. E. Peebles, Pawel O. Mazur, R. Crittenden, S. W. Hawking, Ya. B. Zel'dovich   +19 more
core   +1 more source

Estimation of Cosmic-Ray-Induced Atmospheric Ionization and Radiation at Commercial Aviation Flight Altitudes

Applied Sciences, 2022
The main source of the ionization of the Earth’s atmosphere is the cosmic radiation that depends on solar activity as well as geomagnetic activity. Galactic cosmic rays constitute a permanent radiation background and contribute significantly to the ...
Panagiota Makrantoni, Anastasia Tezari, Argyris N. Stassinakis, Pavlos Paschalis, Maria Gerontidou, Pantelis Karaiskos, Alexandros G. Georgakilas, Helen Mavromichalaki, Ilya G. Usoskin, Norma Crosby, Mark Dierckxsens   +10 more
doaj   +1 more source

On parton distributions in a photon gas

, 2009
In some cases it may be useful to know parton distributions in a photon gas. This may be relevant, e.g., for the analysis of interactions of high energy cosmic ray particles with the cosmic microwave background radiation.
A. Ringwald, C. Amsler, D. Seckel, D.J. Fixsen, E. Witten, E.C. Titchmarsh, F.E. Close, G. Barenboim, G.T. Zatsepin, I. Alikhanov, I. Alikhanov, J.C. D’Olivo, K. Greisen, L.D. Landau, M. Glück, M. Krawczyk, P. Aurenche, P. Bhattacharjee, P. Gondolo, R. Nisius, R.L. Kingsley, R.P. Feynman, S. Weinberg, S.J. Brodsky, T.F. Walsh, T.F. Walsh, W. Greiner, W. Slominski   +27 more
core   +1 more source

Cosmic Background Radiation and “ether-drift” experiments [PDF]

EPL (Europhysics Letters), 2016
`Ether-drift' experiments have played a crucial role for the origin of relativity. Though, a recent re-analysis shows that those original measurements where light was still propagating in gaseous systems, differently from the modern experiments in vacuum and in solid dielectrics, indicate a small universal anisotropy which is naturally interpreted in ...
Consoli M, PLUCHINO, ALESSANDRO, RAPISARDA, Andrea   +2 more
openaire   +3 more sources