Results 121 to 130 of about 27,730 (253)
, 2004 Neutral hydrogen around high-z QSO and an optical depth tau ~ 0.17 can be reconciled if reionization is more complex than a single transition at z ~ 6-8. Tracing its details could shed a new light on the first sources of radiation.
Becker +32 more
core +1 more source
Reionization of the Milky Way, M31, and their satellites – I. Reionization history and star formation [PDF]
Monthly Notices of the Royal Astronomical Society, 2018 14 pages, 12 figures, 2 tables.
Stefan Gottlöber +9 more
openaire +4 more sources
CONCERTO: Instrument and status [PDF]
EPJ Web of ConferencesCONCERTO (CarbON CII line in post-rEionization and ReionizaTiOn) is a low-resolution Fourier transform spectrometer dedicated to the study of star-forming galaxies and clusters of galaxies in the transparent millimeter windows from the ground.
Fasano Alessandro +38 more
doaj +1 more source
Analytical Models of the Intergalactic Medium and Reionization [PDF]
Curr.Sci.97:841,2009, 2009 Reionization is a process whereby hydrogen (and helium) in the Universe is ionized by the radiation from first luminous sources. Theoretically, the importance of the reionization lies in its close coupling with the formation of first cosmic structures and hence there is considerable effort in modelling the process.
arxiv
, 2006 The case for substantial far infrared ice emission in local ultraluminous infrared galaxies, expected based on the presence of mid-infrared ice absorption in their spectra and the known far infrared optical properties of ice, is still largely unsupported by direct observation owing to insufficient far infrared spectral coverage.
Dudley, C. C. +2 more
openaire +2 more sources
The Astrophysical JournalWe 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
Semi-Numerical Simulation of Reionization with Semi-Analytical Modeling of Galaxy Formation
, 2012 In a semi-numerical model of reionization, the evolution of ionization fraction is simulated approximately by the ionizing photon to baryon ratio criterion.
Chen, Xuelei +5 more
core +1 more source
The Inhomogeneous Reionization Times of Present-day Galaxies [PDF]
, 2018 Today's galaxies experienced cosmic reionization at different times in different locations. For the first time, reionization ($50\%$ ionized) redshifts, $z_R$, at the location of their progenitors are derived from new, fully-coupled radiation-hydrodynamics simulation of galaxy formation and reionization at $z > 6$, matched to N-body simulation to z = 0.
arxiv +1 more source
Cosmic Reionization in the JWST Era: Back to AGNs?
The Astrophysical JournalDeep surveys with the James Webb Space Telescope (JWST) have revealed an emergent population of moderate-luminosity, broad-line active galactic nuclei (AGNs) at 4 ≲ z ≲ 13 powered by accretion onto early massive black holes.
Piero Madau +3 more
doaj +1 more source
The Imprint of Cosmic Reionization on Galaxy Clustering
, 2007 We consider the effect of reionization on the clustering properties of galaxy samples at intermediate redshifts (z~0.3-5.5). Current models for the reionization of intergalactic hydrogen predict that overdense regions will be reionized early, thus ...
A. Loeb, J. S. B. Wyithe, Kriss
core +1 more source