Results 91 to 100 of about 22,853 (217)
The Universe is at Most 88% Neutral at z = 10.6
The Astrophysical Journal Letters, 2023 Recent observations of GN-z11 with JWST have revealed a Ly α emission line with an equivalent width (EW) of 18 ± 2 Å. At z = 10.6, this galaxy is expected to lie in the heart of reionization.
Sean Bruton +3 more
doaj +1 more source
Simulating cosmic reionization and the radiation backgrounds from the epoch of reionization [PDF]
AIP Conference Proceedings, 2012 Based on invited review talk by Paul Shapiro at First Stars IV - From Hayashi to the Future, Kyoto, Japan, May 25, 2012; talk slides available at http://tpweb2.phys.konan-u.ac.jp/~FirstStar4/presentation_files/PShapiro ...
Shapiro, Paul R. +12 more
openaire +2 more sources
Gas‐Phase Formation of Sulfurous Acid (H2SO3) in the Atmosphere
Angewandte Chemie International Edition, Volume 63, Issue 30, July 22, 2024.Laboratory experiments show the formation of sulfurous acid (H2SO3) from the gas‐phase reaction of OH radicals with CH3S(O)OH for atmospheric reaction conditions with a molar yield of ∼50 %. H2SO3 represents a hard‐to‐reach acid that has never been observed in aqueous solution. In the gas phase, if once formed, it shows a certain kinetic stability with
Torsten Berndt +3 more
wiley +1 more source
The Astrophysical JournalUnderstanding when and how reionization happened is crucial for studying the early structure formation and the properties of the first galaxies in the Universe. At z > 5.5, the observed intergalactic medium (IGM) optical depth shows a significant scatter,
Xiangyu Jin +24 more
doaj +1 more source
UniverseThe adequate choice of stellar initial mass function (IMF) is crucial when studying high-z galaxy formation and the epoch of reionization (EoR) models. We employ the semi-analytical galaxy model L-Galaxies2020 and the dark matter simulation Millennium-II,
Qingbo Ma, Lei Liu, Peiai Liu
doaj +1 more source
The Imprint of Cosmic Reionization on Galaxy Clustering
, 2007 We consider the effect of reionization on the clustering properties of galaxy samples at intermediate redshifts (z~0.3-5.5). Current models for the reionization of intergalactic hydrogen predict that overdense regions will be reionized early, thus ...
A. Loeb, J. S. B. Wyithe, Kriss
core +1 more source
Optical Evidence of Compositional Fractioning between Plasma‐Condensed and Melt Pool Matter
Advanced Engineering Materials, Volume 26, Issue 13, July 2024.This work presents an initial look at correlating the optical emissions of the weld plasma to that of the composition of particles condesned from the plasma plume. Particles removed from the melt pool through the plasma plume have atomic percent level differences in composition of alloy elements when compared to the originating metal.
Lance Hubbard +8 more
wiley +1 more source
Updating and profiling the natural product‐likeness of Latin American compound libraries**
Molecular Informatics, Volume 43, Issue 7, July 2024.We discuss a comparative and extensive profiling of the natural product‐likeness of an updated version of LANaPDB and the individual ten compound databases that form part of LANaPDB. The profiling is conducted with three different chemoinformatics metrics.
Alejandro Gómez‐García +17 more
wiley +1 more source
Astronomy & AstrophysicsWe analyse the impact of the decaying magnetic turbulence of primordial magnetic fields (PMFs) and ambipolar diffusion on the ionisation and thermal history of the Dark Ages Universe (30 ≤ z ≤ 300), and its imprint on the spectral profile of the global ...
Novosyadlyj B. +3 more
doaj +1 more source
Constraining High Redshift X-ray Sources with Next Generation 21 cm Power Spectrum Measurements [PDF]
, 2016 We use the Fisher matrix formalism and semi-numerical simulations to derive quantitative predictions of the constraints that power spectrum measurements on next-generation interferometers, such as the Hydrogen Epoch of Reionization Array (HERA) and the ...
Dillon, Joshua S. +5 more
core +2 more sources