The Statistical Significance of the "Dark Flow"

Details The Statistical Significance of the "Dark Flow" The Statistical Significance of the "Dark Flow"

2009-10-22

arxiv.org/abs/0910.4233v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 2 figures, submitted to the Astrophysical Journal Letters

Scientific paper

We revisit the statistical significance of the "dark flow" presented in
Kashlinsky et al. (2009). We do not find a statistically significant detection
of a bulk flow. Instead we find that CMB correlations between the 8 WMAP
channels used in this analysis decrease the inferred significance of the
detection to 0.7\sigma.

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