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Related papers: Sunyaev-Zeldovich Signals from $L^*$ Galaxies: Obs…

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Many state-of-the-art galaxy simulations featuring traditional feedback modes have significant challenges producing enough extended soft X-ray ($\sim 0.5-2$ keV) emission at R $\sim 0.5-1$ R$_{\rm vir}$ observed around galaxies with stellar…

Astrophysics of Galaxies · Physics 2026-01-21 Sam B. Ponnada , Philip F. Hopkins , Yue Samuel Lu , Emily M. Silich , Iryna S. Butsky , Dusan Keres

We investigate the potential of exploiting the Sunyaev-Zeldovich effect (SZE) to study the properties of hot gas in galaxy groups. It is shown that, with upcoming SZE surveys, one can stack SZE maps around galaxy groups of similar halo…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-19 Ran Li , H. J. Mo , Zuhui Fan , Frank C. van den Bosch , Xiaohu Yang

The detailed spectral and spatial characteristics of the signature imprinted on the cosmic microwave background (CMB) radiation by Compton scattering of the radiation by electrons in the hot gas in clusters of galaxies - the…

Astrophysics · Physics 2017-08-23 Yoel Rephaeli

The relation between the mass and integrated electron pressure of galaxy group and cluster halos can be probed by stacking maps of the thermal Sunyaev-Zel'dovich (tSZ) effect. Perhaps surprisingly, recent observational results have…

Cosmology and Nongalactic Astrophysics · Physics 2018-04-11 J. Colin Hill , Eric J. Baxter , Adam Lidz , Johnny P. Greco , Bhuvnesh Jain

In galaxy clusters the thermal Sunyaev-Zel'dovich (SZ) effect from the hot intracluster medium (ICM) provides a direct, self-contained measure of the pressure integrated over crossing lines of sight, that is intrinsically independent of…

Cosmology and Nongalactic Astrophysics · Physics 2015-06-23 A. Cavaliere , A. Lapi

[Abridged] Inverse Compton scattering of CMB fluctuations off cosmic electron plasma generates a polarization of the associated Sunyaev-Zel'dovich (SZ) effect. This signal has been studied so far mostly in the non-relativistic regime and…

Cosmology and Nongalactic Astrophysics · Physics 2016-07-27 M. S. Emritte , S. Colafrancesco , P. Marchegiani

Observable thermodynamical properties of the intracluster medium (ICM) reflect the complex interplay between AGN feedback and the gravitational collapse of haloes. Using the large volume TNG300 simulation of the IllustrisTNG project we…

The latest Planck results on the power spectrum of the Compton-$y$ parameter are the most accurate probe of the thermal Sunyaev Zeldovich (tSZ) effect caused by resolved and un-resolved clusters of galaxies. On large angular scales, the…

Cosmology and Nongalactic Astrophysics · Physics 2018-06-14 Boris Bolliet

The thermal Sunyaev-Zel'dovich (tSZ) effect is produced by the interaction of cosmic microwave background (CMB) photons with the hot (a few keV) and diffuse gas of electrons inside galaxy clusters integrated along the line of sight. This…

Cosmology and Nongalactic Astrophysics · Physics 2017-02-01 G. Hurier

We present predicted Sunyaev-Zeldovich (SZ) properties of known X-ray clusters of galaxies for which gas temperature measurements are available. The reference sample was compiled from the BAX database for X-ray clusters. The…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-14 Luis Ferramacho , Alain Blanchard

[Abridged] We study the thermal and kinetic Sunyaev-Zel'dovich (SZ) effect associated with superclusters of galaxies using the MareNostrum Universe SPH simulation. We consider superclusters similar to the Corona Borealis Supercluster…

Cosmology and Nongalactic Astrophysics · Physics 2015-05-13 I. Flores-Cacho , J. A. Rubiño-Martín , G. Luzzi , R. Rebolo , M. De Petris , G. Yepes , L. Lamagna , S. De Gregori , E. S. Battistelli , R. Coratella , S. Gottlöber

We combine the Santa-Cruz Semi-Analytic Model (SAM) for galaxy formation and evolution with the circumgalactic medium (CGM) model presented in Faerman et al. (2020) to explore the CGM properties of $L^{*}$ galaxies. We use the SAM to…

Astrophysics of Galaxies · Physics 2022-03-30 Yakov Faerman , Viraj Pandya , Rachel S. Somerville , Amiel Sternberg

We examine the thermodynamic state and cooling of the low-$z$ Circum-Galactic Medium (CGM) in five FIRE-2 galaxy formation simulations of Milky Way-mass galaxies. We find that the CGM in these simulations is generally multiphase and…

The thermal Sunyaev-Zel'dovich (tSZ) effect provides a powerful probe of the thermal pressure of ionised gas in galaxy clusters and the cosmic web; constrained simulations reconstruct the mass and velocity fields of the local Universe. We…

Cosmology and Nongalactic Astrophysics · Physics 2026-01-23 Richard Stiskalek , Harry Desmond

The hot gas in clusters of galaxies creates a distinctive spectral distortion in the cosmic microwave background (CMB) via the Sunyaev-Zel'dovich (SZ) effect. The spectral signature of the SZ can be used to measure the CMB temperature at…

Cosmology and Nongalactic Astrophysics · Physics 2022-02-09 Gemma Luzzi , Emanuele D'Angelo , Hervé Bourdin , Federico De Luca , Pasquale Mazzotta , Filippo Oppizzi , Gianluca Polenta

Most baryons in present-day galaxy clusters exist as hot gas ($\boldsymbol{\gtrsim10^7\,\rm}\mathrm{K}$), forming the intracluster medium (ICM). Cosmological simulations predict that the mass and temperature of the ICM rapidly decrease with…

We present an improved method for predicting the Sunyaev-Zeldovich (SZ) effect in galaxy clusters from spatially-resolved, spectroscopic X-ray data. Using the deprojected electron density and temperature profiles measured within a fraction…

Astrophysics · Physics 2009-09-17 R. W. Schmidt , S. W. Allen , A. C. Fabian

The power spectrum of unresolved thermal Sunyaev-Zeldovich (tSZ) clusters is extremely sensitive to the amplitude of the matter fluctuations. This paper present an analysis of the tSZ power spectrum using temperature power spectra of the…

Cosmology and Nongalactic Astrophysics · Physics 2025-05-16 George Efstathiou , Fiona McCarthy

We use the cosmo-OWLS suite of cosmological hydrodynamical simulations, which includes different galactic feedback models, to predict the cross-correlation signal between weak gravitational lensing and the thermal Sunyaev-Zeldovich (tSZ)…

Cosmology and Nongalactic Astrophysics · Physics 2016-04-15 Alireza Hojjati , Ian G. McCarthy , Joachim Harnois-Deraps , Yin-Zhe Ma , Ludovic Van Waerbeke , Gary Hinshaw , Amandine M. C. Le Brun

We use moving mesh hydrodynamical simulations to make maps of Sunyaev-Zeldovich effect. We present these maps for several cosmological models and explore their lowest moments. We find that the first moment, the mean Compton $y$ parameter,…

Astrophysics · Physics 2009-10-31 Uros Seljak , Juan Burwell , Ue-Li Pen
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