Long-range correlation in cosmic microwave background radiation [PDF]
Physical Review E, 2011 We investigate the statistical anisotropy and Gaussianity of temperature fluctuations of Cosmic Microwave Background radiation (CMB) data from {\it Wilkinson Microwave Anisotropy Probe} survey, using the multifractal detrended fluctuation analysis, rescaled range and scaled windowed variance methods.
M. Sadegh Movahed +3 more
core +6 more sources
Statistical challenges in the analysis of Cosmic Microwave Background radiation [PDF]
The Annals of Applied Statistics, 2008 An enormous amount of observations on Cosmic Microwave Background radiation has been collected in the last decade, and much more data are expected in the near future from planned or operating satellite missions.
P. Cabella, D. Marinucci
semanticscholar +8 more sources
Imprints of relic gravitational waves in cosmic microwave background radiation [PDF]
, 2006 A strong variable gravitational field of the very early Universe inevitably generates relic gravitational waves by amplifying their zero-point quantum oscillations.
D. Baskaran, L. Grishchuk, A. Polnarev
semanticscholar +7 more sources
Neutrinos and Big Bang Nucleosynthesis [PDF]
Advances in High Energy Physics, 2012 According to the standard models of particle physics and cosmology, there should be a background of cosmic neutrinos in the present Universe, similar to the cosmic microwave photon background.
Gary Steigman
doaj +5 more sources
The Hard VHE γ-Ray Emission in High-Redshift TeV Blazars: Comptonization of Cosmic Microwave Background Radiation in an Extended Jet? [PDF]
, 2008 Observations of very-high-energy (VHE; E > 250 GeV) γ-ray emission from several blazars at z > 0.1 have placed stringent constraints on the elusive spectrum and intensity of the intergalactic infrared background radiation (IIBR).
M. Boettcher, C. Dermer, J. Finke
semanticscholar +3 more sources
Enhanced polarization of the cosmic microwave background radiation from thermal gravitational waves. [PDF]
Physical Review Letters, 2006 If inflation was preceded by a radiation era, then at the time of inflation there will exist a decoupled thermal distribution of gravitons. Gravitational waves generated during inflation will be amplified by the process of stimulated emission into the ...
K. Bhattacharya, S. Mohanty, A. Nautiyal
semanticscholar +3 more sources
The cosmic microwave background radiation temperature at zabs= 3.025 toward QSO 0347-3819 [PDF]
, 2001 From the analysis of the C + fine-structure population ratio in the damped Lysystem at zabs = 3.025 toward the quasar Q0347-3819 we derive an upper bound of 14.6± 0.2 K on the cosmic microwave background temperature (TCMBR ) regardless the presence of ...
P. Molaro +3 more
semanticscholar +3 more sources
Imprint of Sterile Neutrinos in the Cosmic Microwave Background Radiation [PDF]
Phys.Rev.D59:043001,1999, 1998 The existence of low-mass sterile neutrinos is suggested by the current status of solar and atmospheric neutrinos together with the LSND experiment. In typical four-flavor scenarios, neutrinos would contribute to a cosmic hot dark matter component and to an increased radiation content at the epoch of matter-radiation equality. These effects leave their
Hannestad, S., Raffelt, G.
arxiv +6 more sources
Probing the statistic in the cosmic microwave background [PDF]
Mod.Phys.Lett.A24:1187-1192,2009, 2009 Kolmogorov's statistic is used for the analysis of properties of perturbations in the Cosmic Microwave Background signal. We obtain the maps of the Kolmogorov stochasticity parameter for W and V band temperature data of WMAP which are differently affected by the Galactic disk radiation and then we model datasets with various statistic of perturbations.
E. POGHOSIAN +4 more
arxiv +3 more sources
Cosmic microwave background radiation temperature in a dissipative universe [PDF]
Physical Review D, 2015 The relationship between the cosmic microwave background radiation temperature and the redshift, i.e., the $T\ensuremath{-}z$ relation, is examined in a phenomenological dissipative model.
N. Komatsu, S. Kimura
semanticscholar +4 more sources