Sunyaev-Zel'dovich Predictions for the Planck Surveyor Satellite using the Hubble Volume Simulations

Abstract

We use the billion-particle Hubble Volume simulations to make statistical predictions for the distribution of galaxy clusters that will be observed by the Planck Surveyor satellite through their effect on the cosmic microwave background -- the Sunyaev-Zel'dovich effect. We utilize the lightcone datasets for both critical density (tauCDM) and flat low-density (LambdaCDM) cosmologies: a `full-sky' survey out to $z\sim 0.5$, two `octant' datasets out to beyond $z=1$ and a 100 square degree dataset extending to $z\sim 4$. Making simple, but robust, assumptions regarding both the thermodynamic state of the gas and the detection of objects against an unresolved background, we present the expected number of SZ sources as a function of redshift and angular size, and also by flux (for both the thermal and kinetic effects) for 3 of the relevant HFI frequency channels. We confirm the expectation that Planck will detect around $5\times 10^4$ clusters, though the exact number is sensitive to the choice of several parameters including the baryon fraction, and also to the cluster density profile, so that either cosmology may predict more clusters. We also find that the majority of detected sources should be at $z<1.5$, and we estimate that around one per cent of clusters will be spatially resolved by Planck, though this has a large uncertainty.

11 pages LaTeX file with six figures incorporated, using mn.sty

Cited by in corpus (21)

• Galaxy Clusters in Hubble Volume Simulations: Cosmological Constraints from Sky Survey Populations
• Simulating the Sunyaev-Zel'dovich effect(s): including radiative cooling and energy injection by galactic winds
• Constraining cosmological parameters using Sunyaev-Zel'dovich cluster surveys
• The source counts of submillimetre galaxies detected at 1.1 mm
• Sunyaev-Zel'dovich clusters in Millennium Gas simulations
• Introducing BAX: a database for X-ray clusters and groups of galaxies
• The Sunyaev-Zeldovich Background
• Are Clusters Standard Candles? Galaxy Cluster Scaling Relations With the Sunyaev-Zeldovich Effect
• Statistics of Sunyaev-Zel'dovich Cluster Surveys
• Detecting Sunyaev-Zel'dovich clusters with PLANCK: I. Construction of all-sky thermal and kinetic SZ-maps
• Surveys of Galaxy Clusters with the Sunyaev Zel'dovich Effect
• Studying clusters with Planck
• Detecting Sunyaev-Zel'dovich clusters with PLANCK: III. Properties of the expected SZ-cluster sample
• Probing the cosmic microwave background temperature using the Sunyaev-Zeldovich effect
• Sunyaev-Zel'dovich Cluster Survey Simulations for Planck
• Measuring the Mach number of the Universe via the Sunyaev-Zeldovich effect
• Constraining CMB-consistent primordial voids with cluster evolution
• Statistical Properties of Thermal Sunyaev-Zel'dovich Maps
• Cosmology with the Planck cluster sample
• Sunyaev-Zel'dovich power spectrum with decaying cold dark matter
• Sunyaev-Zel'dovich galaxy clusters number counts : consequences of cluster scaling laws evolution