The cosmic radio dipole and local structure effects
Abstract
We investigate the contribution of a local over- or under-density to linear estimates of the cosmic dipole. We focus on radio continuum surveys. Recently it was shown that the radio dipole amplitude is larger than expected from the corresponding dipole of the CMB. We show that a significant contribution to this excess could come from local structure.
- Publication:
-
Statistical Challenges in 21st Century Cosmology
- Pub Date:
- May 2014
- DOI:
- 10.1017/S174392131401343X
- Bibcode:
- 2014IAUS..306..182R
- Keywords:
-
- Cosmology: observations;
- large scale structure of the universe;
- radio surveys;
- peculiar motion