Probing the cosmic microwave background temperature using the Sunyaev-Zeldovich effect

Abstract

We discuss the possibility to constrain the relation between redshift and temperature of the cosmic microwave background (CMB) using multifrequency Sunyaev-Zeldovich (SZ) observations. We have simulated a catalog of clusters of galaxies detected through their SZ signature assuming the sensitivities that will be achieved by the {\it Planck} satellite at 100, 143 and 353 GHz, taking into account the instrumental noise and the contamination from the Cosmic Infrared Background and from unresolved radiosources. We have parametrized the cosmological temperature-redshift law as $T\propto (1+z{)}^{(1-a)}$. Using two sets of SZ flux density ratios (100/143 GHz, which is most sensitive to the parametrization of the $T-z$ law, and 143/353 GHz, which is most sensitive to the peculiar velocities of the clusters) we show that it is possible to recover the $T-z$ law assuming that the temperatures and redshifts of the clusters are known. From a simulated catalog of $\sim 1200$ clusters, the parameter $a$ can be recovered to an accuracy of 10${}^{-2}$. Sensitive SZ observations thus appear as a potentially useful tool to test the standard law. Most cosmological models predict a linear variation of the CMB temperature with redshift. The discovery of an alternative law would have profound implications on the cosmological model, implying creation of energy in a manner that would still maintain the black-body shape of the CMB spectrum at redshift zero.

8 pages, 9 figures, submitted to A&A

References in corpus (26)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• A Universal Density Profile from Hierarchical Clustering
• Large scale bias and the peak background split
• Ellipsoidal collapse and an improved model for the number and spatial distribution of dark matter haloes
• Cosmology with the Sunyaev-Zel'dovich Effect
• The Sunyaev-Zel'dovich Effect
• Calibrator Design for the COBE Far Infrared Absolute Spectrophotometer (FIRAS)
• Relativistic Corrections to the Sunyaev-Zel'dovich Effect for Clusters of Galaxies
• The abundance and clustering of dark haloes in the standard Lambda CDM cosmogony
• Semi-analytic predictions for statistical properties of X-ray clusters of galaxies in cold dark matter universes
• Thermodynamics of Decaying Vacuum Cosmologies
• Peculiar velocities of galaxies and clusters
• The microwave background temperature at the redshift of 2.33771
• The Planck High Frequency Instrument, a 3rd generation CMB experiment, and a full sky submillimeter survey
• A New Measurements of the Cosmic Microwave Background Radiation Temperature at z = 1.97
• The cosmic microwave background radiation temperature at z = 3.025 toward QSO 0347--3819
• Cosmic Microwave Background Temperature at Galaxy Clusters
• Clusters of galaxies in the microwave band: influence of the motion of the Solar System
• Trouble for cluster parameter estimation from blind SZ surveys?
• Sunyaev-Zel'dovich Predictions for the Planck Surveyor Satellite using the Hubble Volume Simulations
• Determining the Geometry and the Cosmological Parameters of the Universe through SZE Cluster Counts
• Prospects for Constraining Cosmology with the Extragalactic Cosmic Microwave Background Temperature
• Sunyaev-Zel'dovich Cluster Survey Simulations for Planck
• The Low Frequency Instrument in the ESA Planck mission
• Separating the kinetic SZ effect from primary CMB fluctuations
• Optimizing the yield of Sunyaev-Zel'dovich cluster surveys

Cited by in corpus (11)

• Planck Early Results VIII: The all-sky Early Sunyaev-Zeldovich cluster sample
• A fast and accurate method for computing the Sunyaev-Zeldovich signal of hot galaxy clusters
• A precise and accurate determination of the cosmic microwave background temperature at z=0.89
• Secondary anisotropies of the CMB
• Measurement of the $T_{\mathrm{CMB}}$ evolution from the Sunyaev-Zel'dovich effect
• Tests of the CMB temperature-redshift relation, CMB spectral distortions and why adiabatic photon production is hard
• Constraints on the CMB temperature redshift dependence from SZ and distance measurements
• Measuring the redshift dependence of the CMB monopole temperature with PLANCK data
• Galaxy clusters and a possible variation of the fine structure constant
• Galaxy clusters as probes for cosmology and dark matter
• Reconstructing the early-universe expansion and thermal history