Eccentric inflation and WMAP

Abstract

For uniform arrangements of magnetic fields, strings, or domain walls (together with the cosmological constant and non-relativistic matter), exact solutions to the Einstein equations are shown to lead to a universe with ellipsoidal expansion. We argue the results can be used to explain some features in the WMAP data. The magnetic field case is the easiest to motivate and has the highest possibility of yielding reliable constraints on observational cosmology.

5 pages, 1 figure

References in corpus (3)

• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Preliminary Maps and Basic Results
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectrum

Cited by in corpus (5)

• CMB multipole measurements in the presence of foregrounds
• CMB quadrupole suppression: I. Initial conditions of inflationary perturbations
• The CMB Quadrupole depression produced by early fast-roll inflation: MCMC analysis of WMAP and SDSS data
• Non-isotropy in the CMB power spectrum in single field inflation
• The Effective Theory of Inflation in the Standard Model of the Universe and the CMB+LSS data analysis