The impact of cooling and pre-heating on the Sunyaev-Zel'dovich effect

Abstract

We use hydrodynamical simulations to assess the impact of radiative cooling and `pre-heating' on predictions for the Sunyaev--Zel'dovich (SZ) effect. Cooling significantly reduces both the mean SZ signal and its angular power spectrum, while pre-heating can give a higher mean distortion while leaving the angular power spectrum below that found in a simulation without heating or cooling. We study the relative contribution from high and low density gas, and find that in the cooling model about 60 per cent of the mean thermal distortion arises from low overdensity gas. We find that haloes dominate the thermal SZ power spectrum in all models, while in the cooling simulation the kinetic SZ power spectrum originates predominantly in lower overdensity gas.

4 pages LaTeX file with five figures incorporated. Various clarifications to the discussion. Further colour images and animations at http://astronomy.susx.ac.uk/users/antonio/sz.html

References in corpus (3)

• Revisiting the Cosmic Cooling Crisis
• The effect of radiative cooling on scaling laws of X-ray groups and clusters
• Surveying the Sky with the Arcminute MicroKelvin Imager: Expected Constraints on Galaxy Cluster Evolution and Cosmology

Cited by in corpus (49)

• Tracing cosmic evolution with clusters of galaxies
• The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters
• SZ effects in the Magneticum Pathfinder Simulation: Comparison with the Planck, SPT, and ACT results
• Modified-Entropy Models for the Intracluster Medium
• Physical Implications of the X-ray Properties of Galaxy Groups and Clusters
• Simulating the Sunyaev-Zel'dovich effect(s): including radiative cooling and energy injection by galactic winds
• The Kinetic Sunyaev-Zel'dovich Effect from Reionization
• Hydrodynamical simulations of the Sunyaev-Zel'dovich effect: cluster scaling relations and X-ray properties
• Small-scale CMB Temperature and Polarization Anisotropies due to Patchy Reionization
• Simulating the physical properties of dark matter and gas inside the cosmic web
• The thermal Sunyaev Zel'dovich effect power spectrum in light of Planck
• Secondary anisotropies of the CMB
• Sunyaev-Zel'dovich clusters in Millennium Gas simulations
• SZE Observables, Pressure Profiles and Center Offsets in Magneticum Simulation Galaxy Clusters
• Precision era of the kinetic Sunyaev-Zeldovich effect: simulations, analytical models and observations and the power to constrain reionization
• Sharpening the Precision of the Sunyaev-Zel'dovich Power Spectrum
• Cluster Sunyaev-Zeldovich Effect Scaling Relations
• The Sunyaev-Zel'dovich effects from a cosmological hydrodynamical simulation: large-scale properties and correlation with the soft X-ray signal
• Properties of the diffuse X-ray background in a high-resolution hydrodynamical simulation
• The SZ Effect Signature of Excess Entropy in Distant, Massive Clusters
• Morphological estimators on Sunyaev--Zel'dovich maps of MUSIC clusters of galaxies
• The Sunyaev-Zeldovich Background
• Statistics of Sunyaev-Zel'dovich Cluster Surveys
• Detecting Sunyaev-Zel'dovich clusters with PLANCK: I. Construction of all-sky thermal and kinetic SZ-maps
• AGN heating, thermal conduction and Sunyaev-Zeldovich effect in galaxy groups and clusters
• Sunyaev-Zeldovich Effect from Quasar-driven Blast-waves
• The Cluster Gas Mass - Temperature Relation: Evidence for a High Level of Preheating
• The intergalactic medium temperature and Compton y parameter
• A Search for Cosmic Microwave Background Anisotropies on Arcminute Scales with Bolocam
• The Sunyaev-Zel'dovich temperature of the intracluster medium
• The probability distribution function of the SZ power spectrum: an analytical approach
• The hybrid SZ power spectrum: Combining cluster counts and SZ fluctuations to probe gas physics
• The Contribution of the Intergalactic Medium to Cosmic Microwave Background Anisotropies
• The Effect of Radiative Cooling on the Sunyaev-Zel'dovich Cluster Counts and Angular Power Spectrum: Analytic Treatment
• Effects of Preheated Clusters on the CMB Spectrum
• Planck Intermediate Results II: Comparison of Sunyaev-Zeldovich measurements from Planck and from the Arcminute Microkelvin Imager for 11 galaxy clusters
• Primordial quadrupole-induced polarisation from filamentary structures and galaxy clusters
• Sunyaev-Zel'dovich Cluster Survey Simulations for Planck
• Impact of a non-Gaussian density field on Sunyaev-Zeldovich observables
• FORECAST: a flexible software to forward model cosmological hydrodynamical simulations mimicking real observations
• The effect of cluster magnetic field on the Sunyaev Zeldovich power spectrum
• The thermal SZ tomography
• Sunyaev-Zeldovich effects, free-free emission, and imprints on the cosmic microwave background
• Cross-correlation between the soft X-ray background and SZ Sky
• Redshift estimation of clusters by wavelet decomposition of their Sunyaev-Zel'dovich morphology
• Hydrodynamical chemistry simulations of the SZ effect and the impacts from primordial non-Gaussianities
• SZ scaling relations in Galaxy Clusters: results from hydrodynamical N-body simulations
• Sunyaev-Zel'dovich contribution in CMB analysis
• Contamination of Cluster Radio Sources in the Measurement of the Thermal Sunyaev-Zel'dovich Angular Power Spectrum