Results 101 to 110 of about 727 (169)

Do Minihalos Affect Cosmic Reionization?

open access: yesThe Astrophysical Journal
The role of unresolved structures (“minihalos”) in determining the consumption of ionizing photons during cosmic reionization remains an unsolved problem in modeling cosmic reionization, despite recent extensive studies with small-box high-resolution ...
Nickolay Y. Gnedin
doaj   +1 more source

On the Properties of Cosmological Ionization Fronts

open access: yesThe Astrophysical Journal
We investigate the properties of cosmological ionization fronts during the epoch of reionization using the Cosmic Reionization on Computers simulations. By analyzing reionization timing maps, we characterize ionization front velocities and curvatures and
Hanjue Zhu, Nickolay Y. Gnedin
doaj   +1 more source

Physics of Cosmic Reionization

open access: yes, 2006
Invited review (to be published by RSP), edited by R. Fabbri.
Choudhury, T. Roy, Ferrara, A.
openaire   +2 more sources

Simulating Cosmic Reionization at Large Scales I: the Geometry of Reionization

open access: yes, 2005
We present the first large-scale radiative transfer simulations of cosmic reionization, in a simulation volume of (100/h Mpc)^3, while at the same time capturing the dwarf galaxies which are primarily responsible for reionization. We achieve this by combining the results from extremely large, cosmological, N-body simulations with a new, fast and ...
Iliev, Ilian T.   +5 more
openaire   +2 more sources

The galaxy-IGM connection in THESAN: the physics connecting the IGM Lyman-$α$ opacity and galaxy density in the reionization epoch

open access: yesThe Open Journal of Astrophysics
The relation between the Lyman-$\alpha$ effective optical depth of quasar sightlines ($\tau_\mathrm{los}$) and the distribution of galaxies around them is an emerging probe of the connection between the first collapsed structures and the IGM properties ...
Enrico Garaldi   +3 more
doaj   +1 more source

Epoch of Reionization [PDF]

open access: yesProceedings of First MCCT-SKADS Training School — PoS(MCCT-SKADS), 2008
openaire   +2 more sources

A New Approach for Constraining Large-scale Temperature Fluctuations in the Intergalactic Medium

open access: yesThe Astrophysical Journal
The reionization of helium is thought to occur at 2.5 ≲ z ≲ 4, marking the last phase transition and final global heating event of the intergalactic medium (IGM).
Saba Etezad-Razavi   +2 more
doaj   +1 more source

Lyα Emission at z = 7–13: Clear Evolution of Lyα Equivalent Width Indicating a Late Cosmic Reionization History

open access: yesThe Astrophysical Journal
We present the evolution of Ly α emission derived from 53 galaxies at z = 6.6–13.2, which have been identified by multiple JWST/NIRSpec spectroscopy programs of Early Release Science, General Observer, Director's Discretionary Time, and Guaranteed Time ...
Minami Nakane   +8 more
doaj   +1 more source

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