Results 41 to 50 of about 15,151 (218)

THE TEMPERATURE OF THE COSMIC MICROWAVE BACKGROUND [PDF]

open access: yesThe Astrophysical Journal, 2009
6 Pages 3 ...
openaire   +2 more sources

Recovering Cosmic Microwave Background Polarization Signals with Machine Learning

open access: yesThe Astrophysical Journal, 2023
Primordial B-mode detection is one of the main goals of current and future cosmic microwave background (CMB) experiments. However, the weak B-mode signal is overshadowed by several Galactic polarized emissions, such as thermal dust emission and ...
Ye-Peng Yan   +3 more
doaj   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl   +8 more
wiley   +1 more source

THE COSMIC MICROWAVE BACKGROUND RADIATION* [PDF]

open access: yesAnnals 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

On the (Higher Multipoles) Variance Asymmetry in the Cosmic Microwave Background

open access: yesThe Astrophysical Journal
We 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

Cosmic Strings and Their Induced Non-Gaussianities in the Cosmic Microwave Background

open access: yesAdvances in Astronomy, 2010
Motivated by the fact that cosmological perturbations of inflationary quantum origin were born Gaussian, the search for non-Gaussianities in the cosmic microwave background (CMB) anisotropies is considered as the privileged probe of nonlinear physics in ...
Christophe Ringeval
doaj   +1 more source

Primordial circular polarization in the cosmic microwave background

open access: yesPhysics Letters B, 2019
Circular (“V-mode”) polarization is expected to be vanishing in the CMB, since it is not produced in Thomson scattering. However, considering that the conventional CMB anisotropies are generated via an early universe mechanism such as inflation or a ...
Stephon Alexander, Evan McDonough
doaj   +1 more source

Mitochondrial NADK2‐dependent NADPH controls tau oligomer uptake in human neurons

open access: yesAlzheimer's &Dementia, Volume 22, Issue 6, June 2026.
Abstract INTRODUCTION Reduced brain energy metabolism, mitochondria dysfunction, and extracellular tau oligomer buildup characterize Alzheimer's disease (AD), but how these phenomena cooperatively promote neurodegeneration is poorly understood. We now report that tau oligomers (TauOs) pathologically coordinate mitochondrial metabolism with increased ...
Evelyn Pardo   +10 more
wiley   +1 more source

Physics of the Cosmic Microwave Background Radiation

open access: yes, 2016
The cosmic microwave background (CMB) radiation provides a remarkable window onto the early universe, revealing its composition and structure.
Oliver F. Piattella   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy