Results 111 to 120 of about 8,595 (212)

A dense web of neutral gas in a galaxy proto-cluster post-reionization

open access: yes
Galaxy clusters are the most massive, gravitationally bound structures in the Universe. They emerged through hierarchical structure formation of large-scale dark matter and baryon overdensities.
Gabriel B Brammer (17317213)   +24 more
core   +1 more source

LIMFAST. III. Timing Cosmic Reionization with the 21 cm and Near-infrared Backgrounds

open access: yesThe Astrophysical Journal
The timeline of cosmic reionization remains uncertain despite sustained efforts to study how the ionizing output of early galaxies shaped the intergalactic medium (IGM).
Guochao Sun   +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

Observational Search for Reionization

open access: yes, 2012
Pen, Ue-Li. (2012). Observational Search for Reionization.
Pen, Ue-Li
core  

Cosmic Reionization on Computers: The Evolution of the Ionizing Background and Mean Free Path

open access: yesThe Astrophysical Journal
Observations of the end stages of reionization indicate that at z  ≈ 5–6, the ionizing background is not uniform and the mean free path (MFP) changes drastically.
Jiawen Fan   +3 more
doaj   +1 more source

The Impact of Stellar Initial Mass Function on the Epoch of Reionization: Insights from Semi-Analytic Galaxy Modeling

open access: yesUniverse
The 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

Reionization in hestia : studying reionization in the LG through zoom simulations

open access: yesMonthly Notices of the Royal Astronomical Society
ABSTRACT While cosmic reionization has been broadly constrained by global observables, the interplay between internal sources [Milky Way (MW), M31, and their satellites] and external ionization fronts remains poorly understood in a realistic Local Group (LG) context. To address this issue, we perform radiative transfer post-processing
David Attard   +5 more
openaire   +2 more sources

A Portrait of the Cosmic Reionization History in the Context of the Early Dark Energy Model

open access: yesThe Astrophysical Journal
Recent JWST observations of Ly α emission at z  ∼ 11–6 indicate a rapid reionization of the intergalactic medium within the first ∼700 Myr. The required Lyman continuum (LyC) photon budget may naturally arise from the unexpectedly high galaxy number ...
Weiyang Liu   +5 more
doaj   +1 more source

The reionization times of z=0 galaxies

open access: yes, 2017
We study the inhomogeneity of the reionization process by comparing the reionization times of z = 0 galaxies as a function of their mass. For this purpose, we combine the results of the CODA-I AMR radiative hydrodynamics simulation of the Reionization ...
Dominique Aubert
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

Home - About - Disclaimer - Privacy