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Title:
The Statistical Significance of the "Dark Flow"
Authors:
Keisler, Ryan
Publication:
The Astrophysical Journal Letters, Volume 707, Issue 1, pp. L42-L44 (2009). (ApJL Homepage)
Publication Date:
12/2009
Origin:
IOP
ApJ Keywords:
cosmology: observations
DOI:
10.1088/0004-637X/707/1/L42
Bibliographic Code:
2009ApJ...707L..42K

Abstract

We revisit recent claims of a significant detection of a bulk flow of distant galaxy clusters. We do not find a statistically significant detection of a bulk flow. Instead we find that cosmic microwave background correlations between the eight Wilkinson Microwave Anisotropy Probe channels used in this analysis decrease the inferred significance of the detection to 0.7σ.
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