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Related papers: Deconstructing the kinetic SZ Power Spectrum

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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…

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 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

The key to understand the nature of dark energy relies in our ability to probe the distant Universe. In this framework, the recent detection of the kinematic Sunyaev-Zel'dovich (kSZ) effect signature in the cosmic microwave background…

Cosmology and Nongalactic Astrophysics · Physics 2018-09-05 M. Roncarelli , M. Baldi , F. Villaescusa-Navarro

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

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 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

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…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-01 D. Munshi , I. T. Iliev , K. L. Dixon , P. Coles

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

We investigate the imprint of dark energy on the kinetic Sunyaev-Zel'dovich (kSZ) angular power spectrum on scales of $\ell=1000$ to $10000$, and find that the kSZ signal is sensitive to the dark energy parameter. For example, varying the…

Cosmology and Nongalactic Astrophysics · Physics 2014-07-09 Yin-Zhe Ma , Gong-Bo Zhao

Poorly understood "baryonic physics" impacts our ability to predict the power spectrum of the kinetic Sunyaev-Zel'dovich (kSZ) effect. We study this in one sample high resolution simulation of galaxy formation and feedback, Illustris. The…

Cosmology and Nongalactic Astrophysics · Physics 2018-02-14 Hyunbae Park , Marcelo A. Alvarez , J. Richard Bond

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 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 epoch of reionisation is a key phase in cosmic history, but its detailed evolution remains poorly constrained by current cosmic microwave background (CMB) observations. We investigate whether the kinetic Sunyaev--Zel'dovich (kSZ) effect…

Cosmology and Nongalactic Astrophysics · Physics 2026-05-13 M. Douspis , A. Gorce , S. Ilić , L. McBride , M. Muñoz-Echeverría , E. Pointecouteau , L. Salvati , M. Tristram

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…

We use an analytic model to investigate the theoretical uncertainty on the thermal Sunyaev-Zel'dovich (SZ) power spectrum due to astrophysical uncertainties in the thermal structure of the intracluster medium. Our model accounts for star…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Laurie D. Shaw , Daisuke Nagai , Suman Bhattacharya , Erwin T. Lau

The pairwise kinematic Sunyaev-Zel'dovich (kSZ) signal from galaxy clusters is a probe of their line-of-sight momenta, and thus a potentially valuable source of cosmological information. In addition to the momenta, the amplitude of the…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-04 Samuel Flender , Lindsey Bleem , Hal Finkel , Salman Habib , Katrin Heitmann , Gilbert Holder

[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 examine, from first principles, the angular power spectrum between the kinematic Sunyaev-Zel'dovich effect (kSZ) and the reconstructed galaxy momentum - the basis of existing and future "kSZ stacking" analyses. We present a comprehensive…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-18 Amy Wayland , David Alonso , Adrien La Posta
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