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.
The Astrophysical Journal
- Pub Date:
- December 2009
- cosmology: observations;
- Astrophysics - Cosmology and Extragalactic Astrophysics
- matches version in ApJL, Volume 707, Issue 1, pp. L42-L44 (2009)