2009/10/31 by Ryan Keisler · 1 citation
Physics and Astronomy · #Cosmic microwave background #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #Statistical Mechanics and Entropy #Statistical analysis #Statistical fluctuations #Statistical hypothesis testing #Statistical model #Statistical significance #astro-ph.CO
paper · pdf · doi:10.1088/0004-637x/707/1/l42
published as Astrophys.J.707:L42-L44,2009 · matches version in ApJL, Volume 707, Issue 1, pp. L42-L44 (2009)
openalex publication_date 2009/11/19 · arxiv created 2013/02/14 · arxiv updated 2013/02/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
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.