Results 121 to 130 of about 22,853 (217)

Reionization and feedback in overdense regions at high redshift

open access: yes, 2010
Observations of galaxy luminosity function at high redshifts typically focus on fields of view of limited sizes preferentially containing bright sources. These regions possibly are overdense and hence biased with respect to the globally averaged regions.
Bolton   +63 more
core   +1 more source

Revised Active Galactic Nuclei Spectral Model Reveals a More Significant Role in Cosmic Reionization

open access: yesThe Astrophysical Journal Letters
Reionization marks one of the most important phase transitions in the history of the Universe, during which neutral baryonic matter was transformed into ionized plasma.
Tong Su   +3 more
doaj   +1 more source

Reionization Parameter Inference from 3D Minkowski Functionals of the 21 cm Signals

open access: yesThe Astrophysical Journal
The Minkowski functionals (MFs), a set of topological summary statistics, have emerged as a powerful tool for extracting non-Gaussian information.
Kangning Diao   +3 more
doaj   +1 more source

Behavior of the Lyα Damping Wings as a Function of Reionization Topology

open access: yesThe Astrophysical Journal
The damping wing signatures in high-redshift quasars have proven instrumental in studying the epoch of reionization. With the upcoming Euclid mission set to discover many more quasars, it is crucial to explore what this new set of quasars might reveal ...
Yash M. Sharma   +4 more
doaj   +1 more source

Perspectives on fundamental cosmology from Low Earth Orbit and the Moon. [PDF]

open access: yesNPJ Microgravity, 2023
Bertone G, Buchmueller OL, Cole PS.
europepmc   +1 more source

Prospects for kSZ2–21 cm2 Cross Correlations during Reionization

open access: yesThe Astrophysical Journal
The 21 cm line and the patchy kinetic Sunyaev–Zel’dovich (kSZ) effect are promising and complementary probes of the Epoch of Reionization. A challenge for cross correlating these two signals is that foreground avoidance or removal algorithms applied to ...
Meng Zhou   +4 more
doaj   +1 more source

Peering into the dark (ages) with low-frequency space interferometers: Using the 21-cm signal of neutral hydrogen from the infant universe to probe fundamental (Astro)physics. [PDF]

open access: yesExp Astron (Dordr), 2021
Koopmans LVE   +29 more
europepmc   +1 more source

The THESAN project: Lyman-alpha emitters as probes of ionized bubble sizes

open access: yesThe Open Journal of Astrophysics
We use the THESAN radiation-hydrodynamics simulations to investigate how Lyman-$\alpha$ emitters (LAEs) trace ionized bubble sizes during the Epoch of Reionization.
Meredith Neyer   +6 more
doaj   +1 more source

What Can We Learn about Reionization Astrophysical Parameters Using Gaussian Process Regression?

open access: yesThe Astrophysical Journal
Reionization is one of the least understood processes in the evolution history of the Universe, mostly because of the numerous astrophysical processes occurring simultaneously about which we do not have a very clear idea so far.
Purba Mukherjee   +2 more
doaj   +1 more source

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