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相关论文: Inferring reionization and galaxy properties from …

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We present new predictions for temperature (on small angular scales) and polarization (on large angular scales) CMB anisotropies induced during the epoch of reionization (EoR). Using a novel method calibrated from Radiation-Hydrodynamic…

宇宙学与河外天体物理 · 物理学 2015-06-12 Nick Battaglia , Aravind Natarajan , Hy Trac , Renyue Cen , Abraham Loeb

We present the first calculation of the kinetic Sunyaev-Zel'dovich (kSZ) effect due to the inhomogeneous reionization of the universe based on detailed large-scale radiative transfer simulations of reionization. The resulting sky power…

天体物理学 · 物理学 2011-02-11 Ilian T. Iliev , Ue-Li Pen , J. Richard Bond , Garrelt Mellema , Paul R. Shapiro

We explore a new approach for extracting reionization-era contributions to the kinetic Sunyaev-Zel'dovich (kSZ) effect. Our method utilizes the cross-power spectrum between filtered and squared maps of the cosmic microwave background (CMB)…

宇宙学与河外天体物理 · 物理学 2022-04-27 Paul La Plante , Jackson Sipple , Adam Lidz

We present the first calculation of the kinetic Sunyaev-Zel'dovich (kSZ) effect due to the inhomogeneus reionization of the universe based on detailed large-scale radiative transfer simulations of reionization. The resulting sky power…

天体物理学 · 物理学 2011-04-11 Ilian T. Iliev , Ue-Li Pen , J. Richard Bond , Garrelt Mellema , Paul R. Shapiro

Upcoming cosmic microwave background (CMB) experiments will measure temperature fluctuations on small angular scales with unprecedented precision, enabling improved measurements of the kinetic Sunyaev-Zel'dovich (kSZ) effect. This secondary…

宇宙学与河外天体物理 · 物理学 2025-06-16 Neha Anil Kumar , Mesut Çalışkan , Selim C. Hotinli , Marc Kamionkowski , Simone Ferraro , Kendrick Smith

[ABRIDGED] Inhomogeneous reionization acts as a source of arcminute-scale anisotropies in the cosmic microwave background (CMB), the most important of which is the kinetic Sunyaev-Zel'dovich (kSZ) effect. Observational efforts with the…

宇宙学与河外天体物理 · 物理学 2015-06-03 Andrei Mesinger , Matthew McQuinn , David Spergel

During the epoch of reionization, local variations in the ionized fraction (patchiness) imprint arcminute-scale temperature anisotropies in the CMB through the kinetic Sunyaev-Zel'dovich (kSZ) effect. We employ an improved version of an…

天体物理学 · 物理学 2009-11-11 Matthew McQuinn , Steven R. Furlanetto , Lars Hernquist , Oliver Zahn , Matias Zaldarriaga

We propose a novel technique to separate the late-time, post-reionization component of the kinetic Sunyaev-Zeldovich (kSZ) effect from the contribution to it from a (poorly understood and probably patchy) reionization history. The kSZ…

宇宙学与河外天体物理 · 物理学 2017-02-01 D. Munshi , I. T. Iliev , K. L. Dixon , P. Coles

We present a detailed investigation of the impact of astrophysical processes on the shape and amplitude of the kinetic Sunyaev-Zel'dovich (kSZ) power spectrum from the post-reionization epoch. This is achieved by constructing a new model of…

宇宙学与河外天体物理 · 物理学 2012-08-17 Laurie D. Shaw , Douglas H. Rudd , Daisuke Nagai

During the Epoch of Reionization (EoR), the ultraviolet radiation from the first stars and galaxies ionised the neutral hydrogen of the intergalactic medium, which can emit radiation through its 21 cm hyperfine transition. This 21 cm signal…

宇宙学与河外天体物理 · 物理学 2024-02-27 Ivelin Georgiev , Adélie Gorce , Garrelt Mellema

The 21\,cm line and the patchy kinetic Sunyaev-Zel'dovich (kSZ) effect are promising and complementary probes of the Epoch of Reionization (EoR). A challenge for cross-correlating these two signals is that foreground avoidance or removal…

宇宙学与河外天体物理 · 物理学 2025-03-13 Meng Zhou , Paul La Plante , Adam Lidz , Yi Mao , Yin-Zhe Ma

We show that, in the context of patchy reionisation, an accurate description of the angular power spectrum of the kinetic Sunyaev-Zel'dovich (kSZ) effect is not possible with simple scaling relations between the amplitude of the spectrum…

宇宙学与河外天体物理 · 物理学 2020-08-19 Adélie Gorce , Stéphane Ilić , Marian Douspis , Dominique Aubert , Mathieu Langer

We calculate the angular power spectrum of the Cosmic Microwave Background (CMB) temperature fluctuations induced by the kinetic Sunyaev-Zel'dovich (kSZ) effect from the epoch of reionization (EOR). We use detailed N-body+radiative transfer…

宇宙学与河外天体物理 · 物理学 2015-06-12 Hyunbae Park , Paul R. Shapiro , Eiichiro Komatsu , Ilian T. Iliev , Kyungjin Ahn , Garrelt Mellema

High-precision measurements of the Cosmic Microwave Background (CMB) will soon allow for the unprecedented detection of small-scale secondary anisotropies, such as the kinetic Sunyaev-Zel'dovich (kSZ) effect. Linking the kSZ power spectrum…

Upcoming measurements of the kinetic Sunyaev-Zel'dovich (kSZ) effect, which results from Cosmic Microwave Background (CMB) photons scattering off moving electrons, offer a powerful probe of the Epoch of Reionization (EoR). The kSZ signal…

宇宙学与河外天体物理 · 物理学 2026-03-24 Farshid Farhadi Khouzani , Abinash Kumar Shaw , Paul La Plante , Bryar Mustafa Shareef , Laxmi Gewali

We study cross-correlations of the kinetic Sunyaev-Zel'dovich effect (kSZ) and 21 cm signals during the epoch of reionisation (EoR) to measure the effects of patchy reionisation. Since the kSZ effect is proportional to the line-of-sight…

宇宙学与河外天体物理 · 物理学 2018-03-21 Q. Ma , K. Helgason , E. Komatsu , B. Ciardi , A. Ferrara

The kinetic Sunyaev-Zel'dovich effect (kSZ) and patchy screening effect are two complementary cosmic microwave background (CMB) probes of the reionization era. The kSZ effect is a relatively strong signal, but is difficult to disentangle…

宇宙学与河外天体物理 · 物理学 2026-01-07 Darby Kramer , Alexander van Engelen , Christopher Cain , Niall MacCrann , Hy Trac , Skylar Grayson , Evan Scannapieco , Blake Sherwin

The high-redshift 21 cm signal from the Epoch of Reionization (EoR) is a promising observational probe of the early universe. Current- and next-generation radio interferometers such as the Hydrogen Epoch of Reionization Array (HERA) and…

宇宙学与河外天体物理 · 物理学 2020-08-13 Paul La Plante , Adam Lidz , James Aguirre , Saul Kohn

The patchiness in the reionization process alters the statistics of Cosmic Microwave Background (CMB), with the kinematic Sunyaev-Zeldovich (kSZ) effect in the CMB temperature power spectrum being a notable consequence. In this work, we aim…

宇宙学与河外天体物理 · 物理学 2024-03-13 Divesh Jain , Tirthankar Roy Choudhury , Srinivasan Raghunathan , Suvodip Mukherjee

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 $z_\mathrm{mid}$, duration…

宇宙学与河外天体物理 · 物理学 2023-02-08 Nianyi Chen , Hy Trac , Suvodip Mukherjee , Renyue Cen
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