Results 131 to 140 of about 22,853 (217)

Probing the Cosmic Reionization History with JWST: Gunn–Peterson and Lyα Damping Wing Absorption at 4.5 < z < 13

The Astrophysical Journal
We present a statistical analysis of Ly α absorption using 581 galaxies at z = 4.5–13 observed with multiple JWST/NIRSpec spectroscopy programs, including JADES, UNCOVER, CEERS, and GO/DDT. We carefully construct composite spectra binned by redshift with
Hiroya Umeda, Masami Ouchi, Yuta Kageura, Yuichi Harikane, Minami Nakane, Tran Thi Thai, Kimihiko Nakajima   +6 more
doaj   +1 more source

Cross-correlating the Patchy Screening and Kinetic Sunyaev–Zel’dovich Effects as a New Probe of Reionization

The Astrophysical Journal
The kinetic Sunyaev–Zel’dovich effect (kSZ) and patchy screening effect are two complementary cosmic microwave background (CMB) probes of the reionization era.
Darby Kramer, Alexander van Engelen, Christopher Cain, Niall MacCrann, Hy Trac, Skylar Grayson, Evan Scannapieco, Blake Sherwin   +7 more
doaj   +1 more source

Physics of Cosmic Reionization

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

Cosmic Reionization in the JWST Era: Back to AGNs?

The Astrophysical Journal
Deep 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, Emanuele Giallongo, Andrea Grazian, Francesco Haardt   +3 more
doaj   +1 more source

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

, 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., Mellema, Garrelt, Pen, Ue-Li, Merz, Hugh, Shapiro, Paul R., Alvarez, Marcelo A.   +5 more
openaire   +2 more sources

Do Minihalos Affect Cosmic Reionization?

The 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

Nearby primitive galaxies offer a window into the early universe. [PDF]

Proc Natl Acad Sci U S A, 2022
Croswell K.
europepmc   +1 more source

Epoch of Reionization [PDF]

Proceedings of First MCCT-SKADS Training School — PoS(MCCT-SKADS), 2008
openaire   +2 more sources

Census of Lyα Emission from ∼600 Galaxies at z = 5–14: Evolution of the Lyα Luminosity Function and a Late Sharp Cosmic Reionization

The Astrophysical Journal Supplement Series
We present the statistical properties of Ly α emission in 586 galaxies at z  = 4.5–14.2, observed by multiple JWST/NIRSpec spectroscopy projects, including the JADES, GLASS, CEERS, and GO/DDT programs.
Yuta Kageura, Masami Ouchi, Minami Nakane, Hiroya Umeda, Yuichi Harikane, Shintaro Yoshiura, Kimihiko Nakajima, Hidenobu Yajima, Tran Thi Thai   +8 more
doaj   +1 more source

On the Properties of Cosmological Ionization Fronts

The 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