Cosmic microwave background constraints for global strings and global monopoles [PDF]
, 2017 We present the first cosmic microwave background (CMB) power spectra from numerical simulations of the global O(N) linear σ-model, with N=2,3, which have global strings and monopoles as topological defects.
A. Lopez-Eiguren +3 more
semanticscholar +1 more source
Design of Waveguide NbN‐Based Superconductor–Insulator–Superconductor Mixer for 650 GHz
Advanced Photonics Research, Volume 6, Issue 7, July 2025.This research work focuses on a waveguide NbN‐based superconductor–insulator–superconductor mixer operating at 650 GHz. The signal coupling circuit is designed using a waveguide‐microstrip coupling structure, and the return loss obtained is lower than −16 dB. For the mixing circuit, its return loss is less than −7.5 dB, and the return loss reduces with
Lianhao He, Fangting Lin, Xiaoyong He
wiley +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
Detecting Patchy Reionization in the Cosmic Microwave Background. [PDF]
Physical Review Letters, 2016 Upcoming cosmic microwave background (CMB) experiments will measure temperature fluctuations on small angular scales with unprecedented precision. Small-scale CMB fluctuations are a mixture of late-time effects: gravitational lensing, Doppler shifting of
Kendrick M. Smith, S. Ferraro
semanticscholar +1 more source
Dating the Middle Palaeolithic of Fumane Cave by the combined ESR/U‐series method
Journal of Quaternary Science, Volume 40, Issue 5, Page 862-875, July 2025.ABSTRACT Fumane Cave, located in Northern Italy, is a major prehistoric site for understanding late Neandertal and early modern human behaviours. The cave contains a 12‐m‐thick stratigraphic sequence of Middle and Upper Palaeolithic layers, which have yielded a number of flint artefacts and faunal remains.
Christophe Falguères +4 more
wiley +1 more source
CLASS Observations of Atmospheric Cloud Polarization at millimeter Wavelengths
The Astrophysical Journal, 2023 The dynamic atmosphere imposes challenges to ground-based cosmic microwave background observation, especially for measurements on large angular scales.
Yunyang Li +24 more
doaj +1 more source
Stringy Signals from Large-Angle Correlations in the Cosmic Microwave Background?
Universe, 2022 We interpret the lack of large-angle temperature correlations and the even-odd parity imbalance observed in the cosmic microwave background (CMB) by COBE, WMAP and Planck satellite missions as a possible stringy signal ultimately stemming from a ...
Miguel-Angel Sanchis-Lozano
doaj +1 more source
Planck intermediate results. LI. Features in the cosmic microwave background temperature power spectrum and shifts in cosmological parameters [PDF]
, 2016 The six parameters of the standard $\Lambda$CDM model have best-fit values derived from the Planck temperature power spectrum that are shifted somewhat from the best-fit values derived from WMAP data.
Planck Collaboration N. Aghanim +151 more
semanticscholar +1 more source
Demonstration of Cosmic Microwave Background Delensing Using the Cosmic Infrared Background. [PDF]
Physical Review Letters, 2016 Delensing is an increasingly important technique to reverse the gravitational lensing of the cosmic microwave background (CMB) and thus reveal primordial signals the lensing may obscure. We present a first demonstration of delensing on Planck temperature
P. Larsen +3 more
semanticscholar +1 more source