Results 201 to 210 of about 34,994 (298)

A Semianalytic Model for Cosmological Reheating and Reionization Due to the Gravitational Collapse of Structure [PDF]

, 2000
Weihsueh A. Chiu, Jeremiah P. Ostriker
openalex   +1 more source

Impact of Helium ii Resonant Absorption on the Ultraviolet Background Modeled in Three Dimensions

The Astrophysical Journal
We implement a treatment of helium ii absorption and reemission into the Technicolor Dawn cosmological simulations to study its impact on the metagalactic ultraviolet background (UVB) in three dimensions.
Ezra Huscher, Kristian Finlator, Samir Kušmić, Maya Steen   +3 more
doaj   +1 more source

Cosmic Reionization on Computers: Statistics, Physical Properties, and Environments of Lyman Limit Systems at z ∼ 6

The Astrophysical Journal
Lyman limit systems (LLSs) are dense hydrogen clouds with high enough H i column densities to absorb Lyman continuum photons emitted from distant quasars.
Jiawen Fan, Hanjue Zhu, Camille Avestruz, Nickolay Y. Gnedin   +3 more
doaj   +1 more source

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

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

Constraining the Initial Mass Function in the Epoch of Reionization from Astrophysical and Cosmological Data

Universe
We aim to constrain the stellar initial mass function (IMF) during the epoch of reionization. To this purpose, we build up a semi-empirical model for the reionization history of the Universe based on various ingredients: the latest determination of the ...
Andrea Lapi, Giovanni Gandolfi, Lumen Boco, Francesco Gabrielli, Marcella Massardi, Balakrishna S. Haridasu, Carlo Baccigalupi, Alessandro Bressan, Luigi Danese   +8 more
doaj   +1 more source

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

Evidence for Reionization at [ITAL][CLC]z[/CLC][/ITAL] ∼ 6: Detection of a Gunn-Peterson Trough in a [ITAL][CLC]z[/CLC][/ITAL] = 6.28 Quasar [PDF]

, 2001
R. H. Becker, Xiaohui Fan, R. L. White, Michael A. Strauss, Vijay K. Narayanan, Robert H. Lupton, James E. Gunn, James Annis, Neta A. Bahcall, J. Brinkmann, Andrew J. Connolly, István Csabai, Paul C. Czarapata, Mamoru Doi, Timothy M. Heckman, G. S. Hennessy, Željko Ivezić, G. R. Knapp, D. Q. Lamb, Timothy A. McKay, Jeffrey A. Munn, Thomas Nash, Robert C. Nichol, Jeffrey R. Pier, Gordon T. Richards, Donald P. Schneider, Chris Stoughton, Alexander S. Szalay, Aniruddha R. Thakar, Donald G. York   +29 more
openalex   +1 more source

Constraining Reionization with Lyα Damping-wing Absorption in Galaxy Spectra: A Machine Learning Model Based on Reionization Simulations

The Astrophysical Journal
Recently, NIRSpec PRISM/CLEAR observations by JWST have begun providing rest-frame UV continuum measurements of galaxies at z  ≳ 7, revealing signatures of Ly α damping-wing (DW) absorption by the intergalactic medium (IGM).
Hyunbae Park, Intae Jung, Hidenobu Yajima, Jenny G. Sorce, Paul R. Shapiro, Kyungjin Ahn, Pierre Ocvirk, Romain Teyssier, Gustavo Yepes, Ilian T. Iliev, Joseph S. W. Lewis   +10 more
doaj   +1 more source

Constraints on Warm Dark Matter from Cosmological Reionization [PDF]

, 2001
Rennan Barkana, Zoltán Haiman, Jeremiah P. Ostriker   +2 more
openalex   +1 more source

Large scale purification in semiconductors using Rydberg excitons. [PDF]

Nat Commun, 2023
Bergen M, Walther V, Panda B, Harati M, Siegeroth S, Heckötter J, Aßmann M.   +6 more
europepmc   +1 more source