A new method of measuring the cluster peculiar velocity power spectrum

Abstract

We propose to use spatial correlations of the kinetic Sunyaev-Zeldovich (KSZ) flux as an estimator of the peculiar velocity power spectrum. In contrast with conventional techniques, our new method does not require measurements of the thermal SZ signal or the X-ray temperature. Moreover, this method has the special advantage that the expected systematic errors are always sub-dominant to statistical errors on all scales and redshifts of interest. We show that future large sky coverage KSZ surveys may allow a peculiar velocity power spectrum estimates of an accuracy reaching ~10%.

5 pages, 2 figures, MNRAS in Press (doi: 10.1111/j.1365-2966.2008.13454.x)

References in corpus (12)

• Dipole of the luminosity distance: a direct measure of H(z)
• The Correlation Function of Optically Selected Galaxy Clusters in the Sloan Digital Sky Survey
• Cosmological Constraints from Type Ia Supernovae Peculiar Velocity Measurements
• The Velocity Field of the Local Universe from Measurements of Type Ia Supernovae
• The Peculiar Velocities of Local Type Ia Supernovae and their Impact on Cosmology
• Cosmological Constraints from Galaxy Cluster Velocity Statistics
• Current Status Of Velocity Field Surveys: A Consistency Check
• Power Spectrum Shape from Peculiar Velocity Data
• Bulk Flow and Shear Moments of the SFI++ Survey
• Probing the Largest Cosmological Scales with the CMB-Velocity Correlation
• Cosmic Streaming Field at Low Redshift
• A new method of measuring the peculiar velocity power spectrum

Cited by in corpus (26)

• Consistently Large Cosmic Flows on Scales of 100 Mpc/h: a Challenge for the Standard LCDM Cosmology
• Observational Tests of Modified Gravity
• Generation of Vorticity and Velocity Dispersion by Orbit Crossing
• Planck intermediate results. XIII. Constraints on peculiar velocities
• Self-Similar Solution of Hot Accretion Flows with Ordered Magnetic Field and Outflow
• Hyperaccreting Disks around Magnetars for Gamma-Ray Bursts: Effects of Strong Magnetic Fields
• Magnetic Fields of Agns and Standard Accretion Disk Model: Testing by Optical Polarimetry
• Two-dimensional inflow-wind solution of black hole accretion with an evenly symmetric magnetic field
• Detection of pairwise kSZ effect with DESI galaxy clusters and Planck
• Ultra-light axions and the kinetic Sunyaev-Zel'dovich Effect
• Likelihood reconstruction method of real-space density and velocity power spectra from a redshift galaxy survey
• Testing the tensor-vector-scalar Theory with the latest cosmological observations
• The Effects of Magnetic Field Strength on Properties of Wind Generated from Hot Accretion Flow
• Role of thermal conduction in an advective accretion with bipolar outflows
• The Peculiar Velocity Correlation Function
• The effects of toroidal magnetic field on the vertical structure of hot accretion flows
• Analytical solution for the structure of ADAFs
• Vertical structure of Advection dominated Accretion Flows
• Structure of ADAFs in a general large-Scale B-field: The role of wind and thermal conduction
• Resistive and magnetized accretion flows with convection
• Peculiar Velocity Estimation from Kinetic SZ Effect using Deep Neural Networks
• Hydrodynamical wind on magnetized Accretion Flows with Convection
• The velocity--shape alignment of clusters and the kinetic Sunyaev--Zeldovich effect
• A powerful e^{+-} outflow driven by a proto-strange quark star
• Dynamics of an ensemble of clumps embedded in a magnetized ADAF
• Testing eternal inflation with the kinetic Sunyaev Zel'dovich effect