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ID: 10943.0, MPI für Astrophysik / Cosmology
Predicting the clustering properties of galaxy clusters detectable by the Planck satellite
Authors:Moscardini, L.; Bartelmann, M.; Matarrese, S.; Andreani, P.
Date of Publication (YYYY-MM-DD):2002
Title of Journal:Monthly Notices of the Royal Astronomical Society
Journal Abbrev.:Mon. Not. Roy. Astron. Soc.
Issue / Number:4
Start Page:984
End Page:992
Review Status:Peer-review
Audience:Experts Only
Abstract / Description:We study the clustering properties of the galaxy clusters detectable by the Planck satellite owing to their thermal Sunyaev-Zel'dovich (SZ) effect. We take the past light-cone effect and the redshift evolution of both the underlying dark matter correlation function and the cluster bias factor into account. A theoretical mass-temperature relation allows us to convert the sensitivity limit of a catalogue into a minimum mass for the dark matter haloes hosting the clusters. We confirm that the correlation length is an increasing function of the sensitivity limits defining the survey. Using the expected characteristics of the Planck cluster catalogue, which will be a quite large and unbiased sample, we predict the two- point correlation function and power spectrum for different cosmological models. We show that the wide redshift distribution of the Planck survey will allow us to constrain the cluster clustering properties up to z approximate to 1. The dependence of our results on the main cosmological parameters (the matter density parameter, the cosmological constant and the normalization of the density power spectrum) is extensively discussed. We find that future Planck clustering data will place only mild constraints on the cosmological parameters, because the results depend on the physical characteristics of the intracluster medium, like the baryon fraction and the mass- temperature relation. Once the cosmological model and the Hubble constant are determined, the clustering data will allow a determination of the baryon fraction with an accuracy of a few per cent.
Free Keywords:galaxies : clusters : general; cosmic microwave background; cosmology : theory; dark matter; large-scale structure of Universe
External Publication Status:published
Document Type:Article
Communicated by:N. N.
Affiliations:MPI für Astrophysik/Planck Satellite Group
External Affiliations:Univ Padua, Dipartimento Astron, Vicolo Osservatorio 2, I-35122; Padua, Italy; Univ Padua, Dipartimento Astron, I-35122 Padua, Italy; Max Planck Inst Astrophys, D-85748 Garching, Germany; Ist Nazl Fis Nucl, Sez Padova, I-35131 Padua, Italy; Univ Padua, Dipartimento Fis G Galilei, I-35131 Padua, Italy; Osserv Astron Padova, I-35122 Padua, Italy
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