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Title: Relic vector field and CMB large scale anomalies

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.

Authors:
 [1];  [2]
  1. Department of Physics, The University of Texas at Dallas, Richardson, TX 75083 (United States)
  2. Centre for Theoretical Cosmology, DAMTP, University of Cambridge, Cambridge CB3 0WA (United Kingdom)
Publication Date:
OSTI Identifier:
22375825
Resource Type:
Journal Article
Journal Name:
Journal of Cosmology and Astroparticle Physics
Additional Journal Information:
Journal Volume: 2014; Journal Issue: 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1475-7516
Country of Publication:
United States
Language:
English
Subject:
79 ASTROPHYSICS, COSMOLOGY AND ASTRONOMY; ALIGNMENT; DENSITY; PARITY; POTENTIALS; VECTOR FIELDS

Citation Formats

Chen, Xingang, and Wang, Yi. Relic vector field and CMB large scale anomalies. United States: N. p., 2014. Web. doi:10.1088/1475-7516/2014/10/027.
Chen, Xingang, & Wang, Yi. Relic vector field and CMB large scale anomalies. United States. https://doi.org/10.1088/1475-7516/2014/10/027
Chen, Xingang, and Wang, Yi. 2014. "Relic vector field and CMB large scale anomalies". United States. https://doi.org/10.1088/1475-7516/2014/10/027.
@article{osti_22375825,
title = {Relic vector field and CMB large scale anomalies},
author = {Chen, Xingang and Wang, Yi},
abstractNote = {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.},
doi = {10.1088/1475-7516/2014/10/027},
url = {https://www.osti.gov/biblio/22375825}, journal = {Journal of Cosmology and Astroparticle Physics},
issn = {1475-7516},
number = 10,
volume = 2014,
place = {United States},
year = {Wed Oct 01 00:00:00 EDT 2014},
month = {Wed Oct 01 00:00:00 EDT 2014}
}