Effects of Preheated Clusters on the CMB Spectrum

Abstract

Mounting evidence from $x$-ray observations reveals that bound objects should receive some form of energy in the past injected from non-gravitaional sources. We report that an instantaneous heating scheme, for which gases in dense regions were subjected to a temperature jump of 1keV at $z=2$ whereas those in rarified regions remained intact, can produce bound objects obeying the observed mass-temperature and luminosity-temperature relations. Such preheating lowers the peak Sunyaev-Zeldovich (SZ) power by a factor of 2 and exacerbates the need for the normalization of matter fluctuations ${\sigma }_8$ to assume an extreme high value $(\sim 1.1)$ for the SZ signals to account for the excess anisotropy on 5-arcminute scale detected by the Cosmic Background Imager in the cosmic microwave background radiation.

arXiv comment6 pages, 3 figs, submitted to ApJL. Corrected for a normalization problem and one more simulation result is included. Conclusion has been reversed. Motion pictures of simulations can be found at http://asweb.phys.ntu.edu.tw/~tseng/MEMO/SZE.html

References in corpus (53)

• The Structure of Cold Dark Matter Halos
• GADGET: A code for collisionless and gasdynamical cosmological simulations
• The Mass Function of an X-Ray Flux-Limited Sample of Galaxy Clusters
• Mass Estimates of X-Ray Clusters
• Properties of the Intracluster Medium in an Ensemble of Nearby Galaxy Clusters
• The Lx-T Relation and Temperature Function for Nearby Clusters Revisited
• High Resolution X-ray Spectroscopic Constraints on Cooling-Flow Models for Clusters of Galaxies
• The Evolution of X-ray Clusters of Galaxies
• The Lx-T Relation and Intracluster Gas Fractions of X-ray Clusters
• The Sunyaev-Zel'dovich angular power spectrum as a probe of cosmological parameters
• X-ray properties of galaxy clusters and groups from a cosmological hydrodynamical simulation
• High Resolution Observations of the CMB Power Spectrum with ACBAR
• Details of the mass--temperature relation for clusters of galaxies
• A High Resolution Study of the Hydra A Cluster with Chandra: Comparison of the Core Mass Distribution with Theoretical Predictions and Evidence for Feedback in the Cooling Flow
• A ROSAT survey of Hickson's compact galaxy groups
• Measuring ${\Omega }_m$ with the ROSAT Deep Cluster Survey
• X-ray Properties of Groups of Galaxies
• The X-ray virial relations for relaxed lensing clusters observed with Chandra
• The Anisotropy of the Microwave Background to l = 3500: Mosaic Observations with the Cosmic Background Imager
• The impact of cooling flows on the Tx-Lbol relation for the most luminous clusters
• ROSAT PSPC observations of 36 high-luminosity clusters of galaxies: constraints on the gas fraction
• Hydrodynamic Simulations of the Sunyaev-Zel'dovich effect(s)
• Non-Gravitational Heating in the Hierarchical Formation of X-ray Clusters
• The Lx-T, Lx-sigma and sigma-T relations for groups and clusters of galaxies
• Scaling laws in X-ray Galaxy Clusters at redshift between 0.4 and 1.3
• Regulation of the X-ray luminosity of clusters of galaxies by cooling and supernova feedback
• Effects of Preheating on X-ray Scaling Relations in Galaxy Clusters
• Four Measures of the Intracluster Medium Temperature and Their Relation to a Cluster's Dynamical State
• Simulating the Sunyaev-Zel'dovich effect(s): including radiative cooling and energy injection by galactic winds
• The Effect of Cooling and Preheating on the X-ray Properties of Clusters of Galaxies
• The effect of radiative cooling on the X-ray properties of galaxy clusters
• The Cluster Mass Function from Early SDSS Data: Cosmological Implications
• The effect of non--gravitational gas heating in groups and clusters of galaxies
• Cooling and heating the ICM in hydrodynamical simulations
• Estimates of Cosmological Parameters Using the CMB Angular Power Spectrum of ACBAR
• Evolution of the cluster X-ray scaling relations since z>0.4
• The Effects of Gas Dynamics, Cooling, Star Formation, and Numerical Resolution in Simulations of Cluster Formation
• The effect of radiative cooling on scaling laws of X-ray groups and clusters
• The Impact of Galaxy Formation on the X-ray Evolution of Clusters
• Hydrodynamical simulations of the Sunyaev--Zel'dovich effect
• Heating of Intergalactic Gas and Cluster Scaling Relations
• Pre-heating the ICM in high resolution simulations: the effect on the gas entropy
• Are X-ray properties of loose groups different from those of compact groups?
• ASCA observations of groups at radii of low overdensity. Implications for the cosmic preheating
• The Evolution of the Galaxy Cluster Luminosity-Temperature Relation
• The impact of cooling and pre-heating on the Sunyaev-Zel'dovich effect
• The Sunyaev Zel'dovich effect: simulation and observation
• Measurement of Arcminute Scale Anisotropy with the BIMA Array
• The Effect of radiative cooling on the scale-dependence of global stellar and gas contents of groups and clusters of galaxies
• Heating of Intracluster Gas by Jet Activities of AGN: Is the "Preheating" Scenario Realistic?
• Determining the Geometry and the Cosmological Parameters of the Universe through SZE Cluster Counts
• The Central Mass and Phase-Space Densities of Dark Matter Halos: Cosmological Implications
• Can radiative cooling and nongravitational heating explain simultaneously the global X-ray properties of clusters and the unresolved cosmic X-ray background ?

Cited by in corpus (17)

• Two populations of metal-free stars in the early Universe
• Population III and the Near-Infrared Background Excess
• Cl 1205+44, a fossil group at z = 0.59
• The Sunyaev-Zeldovich Background
• The Yuan-Tseh Lee Array for Microwave Background Anisotropy
• The intergalactic medium temperature and Compton y parameter
• The Sunyaev-Zel'dovich effect in WMAP data
• The probability distribution function of the SZ power spectrum: an analytical approach
• The Infrared Glow of First Stars
• Probability Friends-of-Friends (PFOF) Group Finder: Performance Study and Observational Data Applications on Photometric Surveys
• AMiBA: System Performance
• The Morphology of the Thermal Sunyaev-Zel'dovich Sky
• Statistical Properties of Thermal Sunyaev-Zel'dovich Maps
• Cross-correlating Sunyaev-Zel'dovich and Weak Lensing Maps
• The thermal SZ tomography
• Reconstructing the Thermal Sunyaev-Zel'dovich Effect in 3D
• Non-grey hydrogen burning evolution of sub-Solar mass Population III stars