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Related papers: The Kinetic Sunyaev-Zel'dovich Effect from Reioniz…

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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…

Astrophysics · Physics 2011-04-11 Ilian T. Iliev , Ue-Li Pen , J. Richard Bond , Garrelt Mellema , Paul R. Shapiro

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…

Astrophysics · Physics 2011-02-11 Ilian T. Iliev , Ue-Li Pen , J. Richard Bond , Garrelt Mellema , Paul R. Shapiro

[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…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-03 Andrei Mesinger , Matthew McQuinn , David Spergel

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…

Cosmology and Nongalactic Astrophysics · Physics 2020-08-19 Adélie Gorce , Stéphane Ilić , Marian Douspis , Dominique Aubert , Mathieu Langer

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…

Cosmology and Nongalactic Astrophysics · Physics 2025-06-16 Neha Anil Kumar , Mesut Çalışkan , Selim C. Hotinli , Marc Kamionkowski , Simone Ferraro , Kendrick Smith

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…

Cosmology and Nongalactic Astrophysics · Physics 2012-08-17 Laurie D. Shaw , Douglas H. Rudd , Daisuke Nagai

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Hyunbae Park , Paul R. Shapiro , Eiichiro Komatsu , Ilian T. Iliev , Kyungjin Ahn , Garrelt Mellema

We investigate the impact of spatial variations in the ionized fraction during reionization on temperature anisotropies in the CMB. We combine simulations of large scale structure to describe the underlying density field with an analytic…

Astrophysics · Physics 2009-11-10 Oliver Zahn , Matias Zaldarriaga , Lars Hernquist , Matthew McQuinn

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…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-12 Nick Battaglia , Aravind Natarajan , Hy Trac , Renyue Cen , Abraham Loeb

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…

Cosmology and Nongalactic Astrophysics · Physics 2024-03-13 Divesh Jain , Tirthankar Roy Choudhury , Srinivasan Raghunathan , Suvodip Mukherjee

The kinetic Sunyaev-Zel'dovich (kSZ) effect is a secondary cosmic microwave background (CMB) anisotropy induced by the scattering of CMB photons off intervening electrons. Through cross-correlations with tracers of large-scale structure,…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-28 Gabriela Sato-Polito , José Luis Bernal , Kimberly K. Boddy , Marc Kamionkowski

A new generation of CMB experiments will soon make sensitive high resolution maps of the microwave sky. At angular scales less than $\sim$10 arcminutes, most CMB anisotropies are generated at z $< 1000$, rather than at the surface of last…

Astrophysics · Physics 2011-02-11 Mario A. Riquelme , David N. Spergel

The study of neutrinos in astrophysics requires the combination of different observational probes. The temperature anisotropies of the cosmic microwave background induced via the kinematic Sunyaev-Zel'dovich (kSZ) effect may provide…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-08 Mauro Roncarelli , Francisco Villaescusa-Navarro , Marco Baldi

Measurements of the kinetic Sunyaev-Zel'dovich (kSZ) effect from instruments such as the South Pole Telescope (SPT) and the Atacama Cosmology Telescope (ACT) will soon put improved constraints on reionization. Popular models assume that UV…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-30 Eli Visbal , Abraham Loeb

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…

Cosmology and Nongalactic Astrophysics · Physics 2018-03-21 Q. Ma , K. Helgason , E. Komatsu , B. Ciardi , A. Ferrara

The patchy kinetic Sunyaev-Zel'dovich (kSZ) signal is an integral probe of the timing and morphology of the epoch of reionization (EoR). Recent observations have claimed a low signal-to-noise (S/N) measurement, with a dramatic increase in…

Cosmology and Nongalactic Astrophysics · Physics 2024-11-12 Ivan Nikolić , Andrei Mesinger , Yuxiang Qin , Adélie Gorce

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…

The kinetic Sunyaev-Zel'dovich (kSZ) effect results from Thomson scattering by coherent flows in the reionized intergalactic medium. We present new results based on ray-tracing a 10 Gpc scale simulation at 2-3 Mpc scale resolution to create…

Cosmology and Nongalactic Astrophysics · Physics 2016-06-24 Marcelo A. Alvarez

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…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-07 Darby Kramer , Alexander van Engelen , Christopher Cain , Niall MacCrann , Hy Trac , Skylar Grayson , Evan Scannapieco , Blake Sherwin

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…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-08 Nianyi Chen , Hy Trac , Suvodip Mukherjee , Renyue Cen
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