Relic Vector Field and CMB Large Scale Anomalies
Cosmology and Nongalactic Astrophysics
2015-06-16 v4 High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
We study the most general effects of relic vector fields on the inflationary background and density perturbations. Such effects are observable if the number of inflationary e-folds is close to the minimum requirement to solve the horizon problem. We show that this can potentially explain two CMB large scale anomalies: the quadrupole-octopole alignment and the quadrupole power suppression. We discuss its effect on the parity anomaly. We also provide analytical template for more detailed data comparison.
Cite
@article{arxiv.1305.4794,
title = {Relic Vector Field and CMB Large Scale Anomalies},
author = {Xingang Chen and Yi Wang},
journal= {arXiv preprint arXiv:1305.4794},
year = {2015}
}
Comments
15 pages, v4, references added, some comments revised, JCAP version