Results 71 to 80 of about 49,997 (277)
On the (Higher Multipoles) Variance Asymmetry in the Cosmic Microwave Background
The Astrophysical JournalWe have studied the cosmic microwave background (CMB) map looking for features beyond cosmological isotropy. We began by tiling the CMB variance maps (which are produced by different smoothing scales) with stripes of different sizes along the most ...
MohammadHossein Jamshidi +2 more
doaj +1 more source
Adapted Method for Separating Kinetic SZ Signal from Primary CMB Fluctuations
EURASIP Journal on Advances in Signal Processing, 2005 In this first attempt to extract a map of the kinetic Sunyaev-Zel'dovich (KSZ) temperature fluctuations from the cosmic microwave background (CMB) anisotropies, we use a method which is based on simple and minimal assumptions.
Forni Olivier, Aghanim Nabila
doaj +1 more source
Dark Energy with Phantom Crossing and the H0 Tension
Entropy, 2021 We investigate the possibility of phantom crossing in the dark energy sector and the solution for the Hubble tension between early and late universe observations.
Eleonora Di Valentino +2 more
doaj +1 more source
Cosmic microwave background constraints on primordial black hole dark matter [PDF]
, 2016 We revisit cosmic microwave background (CMB) constraints on primordial black hole dark matter. Spectral distortion limits from COBE/FIRAS do not impose a relevant constraint. Planck CMB anisotropy power spectra imply that primordial black holes with mBH≳
Daniel Aloni, Kfir Blum, R. Flauger
semanticscholar +1 more source
Agrosystems, Geosciences &Environment, Volume 8, Issue 3, September 2025.Abstract High‐resolution geospatial soil moisture measurements are needed to inform hydrological modeling and to guide water management in agriculture, especially in highly heterogeneous systems such as micro‐irrigated orchards. In this research, we used a Portable L‐band Radiometer (PoLRa) to map very high‐resolution (<2 m) soil surface moisture in ...
Elia Scudiero +7 more
wiley +1 more source
INFLATION AND THE COSMIC MICROWAVE BACKGROUND [PDF]
The New Cosmology, 2005 34 pages, 13 figures, contributed chapter to " Proceedings of the New Cosmology Summer School" edt. M. Colless, to be published by World Scientific, 2003. Based on five lectures given at the 16th Canberra International Summer School "The New Cosmology" held 3-14 February at the Australian National University.
openaire +4 more sources
A Measurement of Atmospheric Circular Polarization with POLARBEAR
The Astrophysical JournalAt millimeter wavelengths, the atmospheric emission is circularly polarized owing to the Zeeman splitting of molecular oxygen by the Earth's magnetic field.
Takuro Fujino +22 more
doaj +1 more source
European Physical Journal C: Particles and Fields, 2017 We investigate constraints on Lorentz invariance violation in the neutrino sector from a joint analysis of big bang nucleosynthesis and the cosmic microwave background.
Wei-Ming Dai +3 more
doaj +1 more source
Uncovering the history of cosmic inflation from anomalies in cosmic microwave background spectra
European Physical Journal C: Particles and Fields, 2022 We propose an inflationary primordial feature model that can explain both the large and small-scale anomalies in the currently measured cosmic microwave background anisotropy spectra, revealing a clip of adventurous history of the Universe during its ...
Matteo Braglia +2 more
doaj +1 more source
Exploring the Tension between Current Cosmic Microwave Background and Cosmic Shear Data
Symmetry, 2018 This paper provides a snapshot of the formal S 8 ≡ σ 8 Ω m / 0.3 tension between Planck 2015 and the Kilo Degree Survey of450 deg 2 of imaging data (KiDS-450) or the Canada France Hawaii Lensing Survey (CFHTLenS).
E. D. Valentino, S. Bridle
semanticscholar +1 more source