Results 111 to 120 of about 6,575 (221)

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

Monthly 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, Luke Conaboy, Noam Libeskind, Sergey Pillipenko, Keri Dixon, Ilian T Iliev   +5 more
openaire   +2 more sources

Galaxies at High Redshift and Reionization

Il Nuovo Cimento B, 2008
ASP Conference Series, Vol. 395 (50 years of NRAO, eds A. Bridle, J. Condon & G. Hunt)
Bunker, A., Stanway, E., Ellis, R., Lacy, M., McMahon, R., Stark, D., Chiu, K., Eyles, L.   +7 more
openaire   +3 more sources

Will Nonlinear Peculiar Velocity and Inhomogeneous Reionization Spoil 21 cm Cosmology from the Epoch of Reionization?

, 2013
International audienceThe 21 cm background from the epoch of reionization is a promising cosmological probe: line-of-sight velocity fluctuations distort redshift, so brightness fluctuations in Fourier space depend upon angle, which linear theory shows ...
Mellema, Garrelt,, Datta, Kanan K., Koda, Jun, Shapiro, Paul R., Mao, Yi, Iliev, Ilian T., Mellema, Garrelt, Datta, Kanan K.,, Ahn, Kyungjin   +8 more
core   +2 more sources

Cosmic Reionization History and Dark Matter Scenarios [PDF]

, 2019
International audienceWe perform an analysis of the cosmic reionization in the standard cold dark matter (CDM) paradigm and in alternative dark matter scenarios.
Carucci, IP, Carucci, Isabella P., Corasaniti, P-S, Corasaniti, Pier-Stefano   +3 more
core   +1 more source

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

The 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, Huanqing Chen, Camille Avestruz, Affan Khadir   +3 more
doaj   +1 more source

REDSHIFT OF REIONIZATION: ARE WE THERE YET? [PDF]

Texas in Tuscany, 2003
Submitted to MNRAS pink ...
openaire   +2 more sources

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

The 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, Adam Lidz, Tzu-Ching Chang, Jordan Mirocha, Steven R. Furlanetto   +4 more
doaj   +1 more source

Distinguishing standard reionization from dark matter models

, 2010
Natarajan A, Schwarz D. Distinguishing standard reionization from dark matter models. Phys.Rev.D. 2010;81(12): 123510.The Wilkinson Microwave Anisotropy Probe (WMAP) experiment has detected reionization at the 5.5 sigma level and has reported a mean ...
Dominik J. Schwarz, Aravind Natarajan, Natarajan, Aravind, Schwarz, Dominik ; https://orcid.org/   +3 more
core   +1 more source

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

The 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, Xin Wang, Hu Zhan, Karl Glazebrook, Mengtao Tang, Michele Trenti   +5 more
doaj   +1 more source

Reionization of the inhomogeneous universe

, 1999
A model of the density distribution in the intergalactic medium, motivated by that found in numerical simulations, is used to demonstrate the effect of a clumpy IGM and discrete sources on the reionization of the universe.
Rees, M.J. (Cambridge Univ. (United Kingdom). Inst. of Astronomy), Pennsylvania Univ., Philadelphia, PA (United States). Dept. of Physics, Haehnelt, M. (Max-Planck-Institut fuer Astrophysik, Garching (Germany), Cambridge Univ. (United Kingdom). Inst. of Astronomy), Escude-Miralda, J. (Max-Planck-Institut fuer Astrophysik, Garching (Germany), Max-Planck-Institut fuer Astrophysik, Garching (Germany), Pennsylvania Univ., Philadelphia, PA (United States). Dept. of Astronomy)   +6 more
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