Results 41 to 50 of about 23,023 (219)

The Effects of Patchy Reionization on Satellite Galaxies of the Milky Way

, 2012
We combine the high-resolution Aquarius simulations with three-dimensional models of reionization based on the initial density field of the Aquarius parent simulation, Millennium-II, to study the impact of patchy reionization on the faint satellite ...
Adam Lidz, Ahn, Alvarez, Anna Frebel, Barkana, Barkana, Bell, Belokurov, Besla, Besla, Blanton, Bovill, Bromm, Bromm, Busha, Busha, D'Onghia, Efstathiou, Frebel, Frebel, Furlanetto, Furlanetto, Gnedin, Helmi, Ivezic, Kirby, Klypin, Komatsu, Koposov, Koposov, Kravtsov, Lars Hernquist, Lidz, Liu, Madau, Mark Vogelsberger, Martin, Michael Boylan-Kolchin, Moore, Navarro, Norris, Ragnhild Lunnan, Simon, Simon, Somerville, Spergel, Tollerud, Tollerud, Tumlinson, Walker, Walker, Willman, Yoshida, Zahn, Zucker   +54 more
core   +1 more source

Studying Reionization with Ly-alpha Emitters

, 2007
We show that observations of high-redshift Ly-alpha emitters (LAEs) have the potential to provide definitive evidence for reionization in the near future.
Babich, Barton, Becker, Becker, Bolton, Casali, Croton, Cuby, De Vos, Dekel, Dijkstra, Dijkstra, Dijkstra, Fan, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Furlanetto, Gardner, Haiman, Haiman, Hansen, Horton, Hui, Iliev, Iye, Kashikawa, Kauffmann, Keating, Kodaira, Landy, Lars Hernquist, Lidz, Lidz, Liu, Loeb, Madau, Malhotra, Malhotra, Matias Zaldarriaga, Matthew McQuinn, McPherson, McQuinn, McQuinn, McQuinn, Mesinger, Mesinger, Miralda-Escude, Morales, Neufeld, Osterbrock, Ouchi, Ouchi, Page, Partridge, Pen, Pritchard, Rhoads, Santos, Santos, Shapley, Sheth, Sheth, Shimasaku, Sokasian, Sokasian, Sokasian, Spergel, Spergel, Springel, Springel, Stark, Stark, Suvendra Dutta, Taniguchi, Tapken, Tasitsiomi, Thommes, Totani, White, White, Willis, Wyithe, Wyithe, Zahn, Zahn, Zaldarriaga   +88 more
core   +1 more source

What Next-Generation 21 cm Power Spectrum Measurements Can Teach Us About the Epoch of Reionization [PDF]

, 2013
A number of experiments are currently working towards a measurement of the 21 cm signal from the Epoch of Reionization. Whether or not these experiments deliver a detection of cosmological emission, their limited sensitivity will prevent them from ...
Aguirre, James E., Bowman, Judd D., Bradley, Richard F., Carilli, Chris L., DeBoer, David R., Dillon, Joshua S., Hewitt, Jacqueline N., Jacobs, Daniel C., Liu, Adrian, McQuinn, Matthew, Morales, Miguel F., Parsons, Aaron R., Pober, Jonathan C., Tegmark, Max, Werthimer, Dan J.   +14 more
core   +2 more sources

Dust distribution during reionization [PDF]

Astronomy & Astrophysics, 2007
The dust produced by the first generation of stars will be a foreground to cosmic microwave background. In order to evaluate the effect of this early dust, we calculate the power spectrum of the dust emission anisotropies and compare it with the sensitivity limit of the Planck satellite.
Elfgren, E., Désert, F.-X., Guiderdoni, B.   +2 more
openaire   +4 more sources

Patchy Kinetic Sunyaev–Zel’dovich Effect with Controlled Reionization History and Morphology

The Astrophysical Journal, 2023
Using the novel semi-numerical code for reionization AMBER, we model the patchy kinetic Sunyaev–Zel’dovich (kSZ) effect by directly specifying the reionization history with the redshift midpoint z _mid , duration Δ _z , and asymmetry A _z .
Nianyi Chen, Hy Trac, Suvodip Mukherjee, Renyue Cen   +3 more
doaj   +1 more source

How is the reionization epoch defined? [PDF]

Monthly Notices of the Royal Astronomical Society, 2002
We study the effect of a prolonged epoch of reionization on the angular power spectrum of the Cosmic Microwave Background. Typically reionization studies assume a sudden phase transition, with the intergalactic gas moving from a fully neutral to a fully ionized state at a fixed redshift. Such models are at odds, however, with detailed investigations of
Bruscoli, Marialuce, Ferrara, Andrea, Scannapieco, Evan   +2 more
openaire   +2 more sources

Perspectives for Cosmological Reionization From Future CMB and Radio Projects

Frontiers in Astronomy and Space Sciences, 2018
In spite of the great recent results from the Planck satellite supporting cosmological reionization scenarios almost compatible with astrophysical models for the evolution of structure, galaxy and star formation, the full understanding of the ...
Tiziana Trombetti, Tiziana Trombetti, Carlo Burigana, Carlo Burigana, Carlo Burigana   +4 more
doaj   +1 more source

Reionization and Cosmology with 21 cm Fluctuations [PDF]

, 2009
Measurement of the spatial distribution of neutral hydrogen via the redshifted 21 cm line promises to revolutionize our knowledge of the epoch of reionization and the first galaxies, and may provide a powerful new tool for observational cosmology from ...
J. Stuart B. Wyithe, Miguel F. Morales, Rohlfs K, Röttgering HJA, Taylor GB   +4 more
core   +1 more source

Reionizing Islands with Inhomogeneous Recombinations

Research in Astronomy and Astrophysics, 2023
Abstract Observations are beginning to constrain the history of the epoch of reionization (EoR). Modeling the reionization process is indispensable to interpret the observations, to infer the properties of ionizing sources, and to probe the various astrophysical processes from the observational data.
Runyu 润玉 Zhu 朱, Yidong 怡冬 Xu 徐, Bin 斌 Yue 岳, Xuelei 学雷 Chen 陈   +3 more
openaire   +2 more sources

Detecting the signature of helium reionization through 3HeII 3.46 cm line-intensity mapping

Astronomy & Astrophysics
Context. Helium reionization is the most recent phase change of the intergalactic medium, yet its timing and main drivers remain uncertain. Among the probes to trace to trace how it unfolds, the 3.46 cm hyperfine line of singly ionized helium has opened ...
Spina Benedetta, Porciani Cristiano, Bosman Sarah E. I., Davies Frederick B., Garaldi Enrico, Keenan Ryan P., Schimd Carlo   +6 more
doaj   +1 more source