One Thousand and One Clusters: Measuring the Bulk Flow with the Planck ESZ and X-Ray Selected Galaxy Cluster Catalogs

Abstract

We present our measurement of the "bulk flow" using the kinetic Sunyaev-Zel'dovich (kSZ) effect in the WMAP 7-year data. As the tracer of peculiar velocities, we use Planck Early Sunyaev-Zel'dovich Detected Cluster Catalog and a compilation of X-ray detected galaxy cluster catalogs based on ROSAT All-Sky Survey. We build a full-sky kSZ template and fit it to the WMAP data in W-band. Using a Wiener filter we maximize the signal to noise ratio of the kSZ cluster signal in the data. We find no significant detection of the bulk flow, and our results are consistent with the LCDM prediction.

6 pages, 3 figures

References in corpus (5)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
• ACTPol: A polarization-sensitive receiver for the Atacama Cosmology Telescope
• N-Body Simulations of DGP and Degravitation Theories
• Effects of dark sectors' mutual interaction on the growth of structures
• Impact of early dark energy on the Planck SZ cluster sample

Cited by in corpus (4)

• Probing bulk flow with nearby SNe Ia data
• Matched filter optimization of kSZ measurements with a reconstructed cosmological flow field
• Cluster mislocation in kinematic Sunyaev-Zel'dovich (kSZ) effect extraction
• Machine Learning Etudes in Astrophysics: Selection Functions for Mock Cluster Catalogs