Results 61 to 70 of about 51,105 (273)
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
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
Improved constraints on lepton asymmetry from the cosmic microwave background [PDF]
, 2017 A cosmic lepton asymmetry affects the primordial helium abundance and the expansion rate of the early Universe. Both of these effects have an impact on the anisotropies of the cosmic microwave background (CMB).
Isabel M. Oldengott, D. Schwarz
semanticscholar +1 more source
Cosmic Microwave Background Anisotropies [PDF]
Annual Review of Astronomy and Astrophysics, 2002 ▪ Abstract Cosmic microwave background (CMB) temperature anisotropies have and will continue to revolutionize our understanding of cosmology. The recent discovery of the previously predicted acoustic peaks in the power spectrum has established a working cosmological model: a critical density universe consisting of mainly dark matter and dark energy ...
Hu, Wayne, Dodelson, Scott
openaire +2 more sources
Quarterly Journal of the Royal Meteorological Society, Volume 152, Issue 774, January 2026 Part A.Impacts of Atmospheric River Reconnaissance dropsonde observations on precipitation forecasts over the U.S. West Coast are examined in the European Centre for Medium‐Range Weather Forecasts (ECMWF) Integrated Forecasting System (IFS), using observing‐system experiments.
Jia Wang +7 more
wiley +1 more source
Impact of Interacting Parameters on Dark Matter in an Interacting Dark Energy Model
The Astrophysical Journal Supplement SeriesThis paper investigates a dark energy model within the Friedmann–Lemaître–Robertson–Walker cosmological framework, considering both interacting and noninteracting scenarios.
Himanshu Chaudhary +3 more
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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
Full-sky Gravitational Lensing Simulation for Large-area Galaxy Surveys and Cosmic Microwave Background Experiments [PDF]
, 2017 We present 108 full-sky gravitational lensing simulation data sets generated by performing multiple-lens plane ray-tracing through high-resolution cosmological N-body simulations. The data sets include full-sky convergence and shear maps from redshifts z
R. Takahashi +6 more
semanticscholar +1 more source
Photoelectron Spectroscopy of the Phosphorus Monosulfide (PS) and Phosphorus Monoxide (PO) Radicals
Small Structures, Volume 7, Issue 1, January 2026.Sketch of the experiment to measure the photo electron spectrum of the PS radical produced in situ with a mixture of PH3, H2S and F atoms. PO and PS radicals are the smallest units of phosphorus oxides and phosphorus sulfides, respectively, two rich families of refractory compounds widely employed in industrial and technological applications. These two
Pedro Recio +10 more
wiley +1 more source
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