Results 141 to 150 of about 6,575 (221)

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 Threshold of the Reionization Epoch [PDF]

, 2001
Discovery of the cosmic reionization epoch would represent a significant milestone in cosmology. We present Keck spectroscopy of the quasar SDSS 1044-0125, at z = 5.73. The spectrum shows a dramatic increase in the optical depth at observed wavelengths λ
Djorgovski, S. G., Castro, S., Mahabal, A. A., Stern, D.   +3 more
core  

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

Testing general relativity with cosmological large scale structure. [PDF]

Gen Relativ Gravit, 2022
Durrer R.
europepmc   +1 more source

Probing Power Spectrum Enhancement at Small Scales with the SKA

The Astrophysical Journal
The reionization process is driven by ionizing photons from dwarf galaxies in halos with virial temperatures T _vir  ≳ 10 ^4 K, whereas minihalos whose T _vir  ≲ 10 ^4 K consume ionizing photons and have negative contributions to reionization.
Hourui Zhu, Bin Yue, Yidong Xu, Xuelei Chen, Zhiqi Huang   +4 more
doaj   +1 more source

Beyond Optical Depth: Future Determination of Ionization History from the Cosmic Microwave Background. [PDF]

Astrophys J, 2020
Watts DJ, Addison GE, Bennett CL, Weiland JL.   +3 more
europepmc   +1 more source

Observational Search for Reionization

, 2012
Pen, Ue-Li. (2012). Observational Search for Reionization.
Pen, Ue-Li
core  

Synergies of THESEUS with the large facilities of the 2030s and guest observer opportunities. [PDF]

Exp Astron (Dordr), 2021
Rosati P, Basa S, Blain AW, Bozzo E, Branchesi M, Christensen L, Ferrara A, Gomboc A, O'Brien PT, Osborne JP, Rossi A, Schüssler F, Spurio M, Stergioulas N, Stratta G, Amati L, Casewell S, Ciolfi R, Ghirlanda G, Grimm S, Guetta D, Harms J, Le Floc'h E, Longo F, Maggiore M, Mereghetti S, Oganesyan G, Salvaterra R, Tanvir NR, Turriziani S, Vergani SD, Balman S, Caruana J, Erkut MH, Guidorzi G, Frontera F, Martin-Carrillo A, Paltani S, Porquet D, Sergijenko O.   +39 more
europepmc   +1 more source

Planck 2015 constraints on reionization history

, 2015
International audienceOn behalf of the Planck collaboration, we will show the tightest constraints on cosmic reionization extracted from the CMB polarization at low multipole by Planck.
Tristram, M.
core   +1 more source

The emergence of globular clusters and globular-cluster-like dwarfs. [PDF]

Nature
Taylor ED, Read JI, Orkney MDA, Kim SY, Pontzen A, Agertz O, Rey MP, Andersson EP, Collins MLM, Yates RM.   +9 more
europepmc   +1 more source