Ellipsoidal Universe Can Solve The CMB Quadrupole Problem
Astrophysics
2008-12-18 v2 General Relativity and Quantum Cosmology
High Energy Physics - Phenomenology
High Energy Physics - Theory
Abstract
The recent three-year WMAP data have confirmed the anomaly concerning the low quadrupole amplitude compared to the best-fit \Lambda CDM prediction. We show that, allowing the large-scale spatial geometry of our universe to be plane-symmetric with eccentricity at decoupling or order 10^{-2}, the quadrupole amplitude can be drastically reduced without affecting higher multipoles of the angular power spectrum of the temperature anisotropy.
Cite
@article{arxiv.astro-ph/0606266,
title = {Ellipsoidal Universe Can Solve The CMB Quadrupole Problem},
author = {L. Campanelli and P. Cea and L. Tedesco},
journal= {arXiv preprint arXiv:astro-ph/0606266},
year = {2008}
}
Comments
4 pages, 2 figures, minor changes, reference added, to appear in Phys. Rev. Lett