Using Galaxy Cluster Peculiar Velocities to Constrain Cosmological Parameters
arXiv:astro-ph/0205438 · doi:10.1016/S0920-5632(03)02083-8
Abstract
Galaxy cluster peculiar velocities can be inferred from high-sensitivity, high-resolution multiple-frequency observations in the 30 to 400 GHz range. While galaxy cluster counts and power spectra are sensitive to the growth factor, peculiar velocities are sensitive to the time-derivative of the growth factor and are hence complementary. Using linear perturbation theory, we forecast constraints on Omega(matter), the Hubble constant today, and the dark-energy equation of state parameter, given 820 densely sampled cluster locations (near redshift 1) from a Lambda-CDM N-body simulation and 820 sparsely sampled cluster locations in a broader redshift range.
4 pages, 2 figures, to appear in Proceedings of Dark Matter 2002, requires espcrc2.sty
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Cited by in corpus (5)
- Dark Energy Constraints from Galaxy Cluster Peculiar Velocities
- Effects of sub-mm and radio point sources on the recovery of Sunyaev-Zeldovich galaxy cluster parameters
- Growth Rate of Large Scale Structure as a Powerful Probe of Dark Energy
- Constrained Cluster Parameters from Sunyaev-Zel'dovich Observations
- Systematic Errors in Sunyaev-Zeldovich Surveys of Galaxy Cluster Velocities