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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 explore the potential of the kinetic Sunyaev-Zel'dovich (kSZ) effect as the cornerstone of a future observational probe for halo spin bias, the secondary dependence of halo clustering on halo spin at fixed halo mass. Using the…

Cosmology and Nongalactic Astrophysics · Physics 2021-04-28 Antonio D. Montero-Dorta , M. Celeste Artale , L. Raul Abramo , Beatriz Tucci

Baryonic feedback remains one of the largest uncertainties in cosmological hydrodynamical simulations, with different prescriptions producing divergent predictions for the fraction of gas expelled from halos, the radial extent of the gas…

Cosmology and Nongalactic Astrophysics · Physics 2025-10-20 Leah Bigwood , Masaya Yamamoto , Jared Siegel , Alexandra Amon , Ian G. McCarthy , Romeel Dave , Jaime Salcido , Matthieu Schaller , Joop Schaye , Tianyi Yang

Extracting precise cosmology from weak lensing surveys requires modelling the non-linear matter power spectrum, which is suppressed at small scales due to baryonic feedback processes. However, hydrodynamical galaxy formation simulations…

Cosmology and Nongalactic Astrophysics · Physics 2024-04-10 L. Bigwood , A. Amon , A. Schneider , J. Salcido , I. G. McCarthy , C. Preston , D. Sanchez , D. Sijacki , E. Schaan , S. Ferraro , N. Battaglia , A. Chen , S. Dodelson , A. Roodman , A. Pieres , A. Ferte , A. Alarcon , A. Drlica-Wagner , A. Choi , A. Navarro-Alsina , A. Campos , A. J. Ross , A. Carnero Rosell , B. Yin , B. Yanny , C. Sanchez , C. Chang , C. Davis , C. Doux , D. Gruen , E. S. Rykoff , E. M. Huff , E. Sheldon , F. Tarsitano , F. Andrade-Oliveira , G. M. Bernstein , G. Giannini , H. T. Diehl , H. Huang , I. Harrison , I. Sevilla-Noarbe , I. Tutusaus , J. Elvin-Poole , J. McCullough , J. Zuntz , J. Blazek , J. DeRose , J. Cordero , J. Prat , J. Myles , K. Eckert , K. Bechtol , K. Herner , L. F. Secco , M. Gatti , M. Raveri , M. Carrasco Kind , M. R. Becker , M. A. Troxel , M. Jarvis , N. MacCrann , O. Friedrich , O. Alves , P. -F. Leget , R. Chen , R. P. Rollins , R. H. Wechsler , R. A. Gruendl , R. Cawthon , S. Allam , S. L. Bridle , S. Pandey , S. Everett , T. Shin , W. G. Hartley , X. Fang , Y. Zhang , M. Aguena , J. Annis , D. Bacon , E. Bertin , S. Bocquet , D. Brooks , J. Carretero , F. J. Castander , L. N. da Costa , M. E. S. Pereira , J. De Vicente , S. Desai , P. Doel , I. Ferrero , B. Flaugher , J. Frieman , J. Garcia-Bellido , E. Gaztanaga , G. Gutierrez , S. R. Hinton , D. L. Hollowood , K. Honscheid , D. Huterer , D. J. James , K. Kuehn , O. Lahav , S. Lee , J. L. Marshall , J. Mena-Fernandez , R. Miquel , J. Muir , M. Paterno , A. A. Plazas Malagon , A. Porredon , A. K. Romer , S. Samuroff , E. Sanchez , D. Sanchez Cid , M. Smith , M. Soares-Santos , E. Suchyta , M. E. C. Swanson , G. Tarle , C. To , N. Weaverdyck , J. Weller , P. Wiseman , M. Yamamoto

A complete picture of the gas thermodynamics around galaxies is imprinted on the cosmic microwave background (CMB). Indeed, the thermal, kinematic, and relativistic Sunyaev-Zel'dovich effects (tSZ, kSZ, rSZ) measure the gas density,…

Cosmology and Nongalactic Astrophysics · Physics 2026-03-05 Sadaf Kadir , Bernardita Ried Guachalla , Sihan Yuan , Emmanuel Schaan , Risa H. Wechsler

The kinematic Sunyaev-Zel'dovich (kSZ) effect -- the Doppler boosting of cosmic microwave background (CMB) photons scattering off free electrons with non-zero line-of-sight velocity -- is an excellent probe of the distribution of baryons in…

Cosmology and Nongalactic Astrophysics · Physics 2021-08-25 Aleksandra Kusiak , Boris Bolliet , Simone Ferraro , J. Colin Hill , Alex Krolewski

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 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

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

The complex processes of baryonic feedback associated with galaxy evolution are still poorly understood, and their impact on the clustering of matter on small scales remains difficult to quantify. While many fitting functions and emulators…

Cosmology and Nongalactic Astrophysics · Physics 2025-11-26 Alex Laguë , Mathew S. Madhavacheril , Josh Borrow , Kendrick M. Smith , Xinyi Chen , Matthieu Schaller , Joop Schaye

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 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 kinematic Sunyaev-Zel'dovich (kSZ) effect --- the Doppler boosting of cosmic microwave background (CMB) photons due to Compton-scattering off free electrons with non-zero bulk velocity --- probes the abundance and distribution of…

Cosmology and Nongalactic Astrophysics · Physics 2016-08-03 J. Colin Hill , Simone Ferraro , Nick Battaglia , Jia Liu , David N. Spergel

The kinematic Sunyaev-Zel'dovich (kSZ) signal is a powerful probe of the cosmic baryon distribution. The kSZ signal is proportional to the integrated free electron momentum rather than the electron pressure (which sources the thermal SZ…

Cosmology and Nongalactic Astrophysics · Physics 2017-01-02 Simone Ferraro , J. Colin Hill , Nick Battaglia , Jia Liu , David N. Spergel

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

Over the past decade, the kinematic Sunyaev-Zel'dovich (kSZ) effect has emerged as an observational probe of the distribution of baryons and velocity fields in the late Universe. Of the many ways to detect the kSZ, the 'projected-fields kSZ…

Cosmology and Nongalactic Astrophysics · Physics 2024-02-14 Raagini Patki , Nicholas Battaglia , Simone Ferraro

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
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