Results 101 to 110 of about 26,451 (248)

The ionizing properties of two bright Lyα emitters in the Bremer Deep Field reionized bubble at z = 7 [PDF]

open access: diamond, 2022
M. Castellano   +19 more
openalex   +1 more source

Observing the Reionization Epoch Through 21 Centimeter Radiation

open access: yes, 2003
We study the observability of the reionization epoch through the 21 cm hyperfine transition of neutral hydrogen. We use a high-resolution cosmological simulation (including hydrodynamics) together with a fast radiative transfer algorithm to compute the ...
Aaron Sokasian   +52 more
core   +1 more source

Architecture Design and Ground Performance of Netherlands‐China Low‐Frequency Explorer

open access: yesRadio Science, Volume 59, Issue 8, August 2024.
Abstract The Netherlands‐China Low‐Frequency Explorer (NCLE) (Boonstra et al., 2017, https://www.ursi.org/proceedings/procGA17/papers/Paper_J19‐2(1603).pdf; Chen et al., 2020, https://ui.adsabs.harvard.edu/abs/2020AAS…23610203C/abstract) is a radio instrument for astrophysical studies in the low‐frequency range (80 kHz–80 MHz).
Sukanth Karapakula   +38 more
wiley   +1 more source

Dark-ages reionization and galaxy formation simulation – IX. Economics of reionizing galaxies [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2017
Using a series of high-resolution hydrodynamical simulations we show that during the rapid growth of high-redshift (z > 5) galaxies, reserves of molecular gas are consumed over a time-scale of 300 Myr, almost independent of feedback scheme. We find that there exists no such simple relation for the total gas fractions of these galaxies, with little ...
Duffy, Alan R.   +6 more
openaire   +4 more sources

Gas‐Phase Formation of Sulfurous Acid (H2SO3) in the Atmosphere

open access: yesAngewandte 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

Simulating cosmic reionization and the radiation backgrounds from the epoch of reionization [PDF]

open access: yesAIP 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

Recent Advances in Cosmological Hydrogen Reionization

open access: yes, 2012
I discuss recent advances in the study of hydrogen reionization, focusing on progress that was achieved during the years 2010-2011. First, I discuss recent measurements of the progress of reionization.
Finlator, Kristian
core   +1 more source

Optical Evidence of Compositional Fractioning between Plasma‐Condensed and Melt Pool Matter

open access: yesAdvanced 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**

open access: yesMolecular 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

Unusually Large Fluctuations in the Statistics of Galaxy Formation at High Redshift

open access: yes, 2012
We show that various milestones of high-redshift galaxy formation, such as the formation of the first stars or the complete reionization of the intergalactic medium, occurred at different times in different regions of the universe.
Aghanim N.   +5 more
core   +1 more source

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