Cosmic Microwave Background Dipole induced by double inflation
General Relativity and Quantum Cosmology
2009-12-30 v1 Astrophysics
Abstract
The observed CMBR dipole is generally interpreted as the consequence of the peculiar motion of the Sun with respect to the reference frame of the CMBR. This article proposes an alternative interpretation in which the observed dipole is the result of isocurvature perturbations on scales larger than the present Hubble radius. These perturbations are produced in the simplest model of double inflation, depending on three parameters. The observed dipole and quadrupole can be explained in this model, while severely constraining its parameters.
Cite
@article{arxiv.gr-qc/9606066,
title = {Cosmic Microwave Background Dipole induced by double inflation},
author = {David Langlois},
journal= {arXiv preprint arXiv:gr-qc/9606066},
year = {2009}
}
Comments
Latex, 9 pages, no figure, to appear in Phys. Rev. D