Large-scale cosmic flows and moving dark energy
Astrophysics
2014-11-18 v3 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
Abstract
Large-scale matter bulk flows with respect to the cosmic microwave background have very recently been detected on scales 100 Mpc/h and 300 Mpc/h by using two different techniques showing an excellent agreement in the motion direction. However, the unexpectedly large measured amplitudes are difficult to understand within the context of standard LCDM cosmology. In this work we show that the existence of such a flow could be signaling the presence of moving dark energy at the time when photons decoupled from matter. We also comment on the relation between the direction of the CMB dipole and the preferred axis observed in the quadrupole in this scenario.
Cite
@article{arxiv.0811.3606,
title = {Large-scale cosmic flows and moving dark energy},
author = {Jose Beltran Jimenez and Antonio L. Maroto},
journal= {arXiv preprint arXiv:0811.3606},
year = {2014}
}
Comments
11 pages, 2 figures. New comments and references included. Final version to appear in JCAP