Constraining Isocurvature Perturbations with Cosmic Microwave Background Polarization
- 22 October 2001
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 87 (19) , 191301
- https://doi.org/10.1103/physrevlett.87.191301
Abstract
The role of cosmic microwave background polarization data in constraining the presence of primordial isocurvature modes is examined. While MAP will be unable to simultaneously constrain isocurvature modes and cosmological parameters, PLANCK will set strong limits on isocurvature modes. If one allows isocurvature modes, the recently obtained BOOMERANG measurement of the curvature of the Universe fails. However, a comparably sensitive polarization measurement on the same angular scales will permit a determination of the curvature without the prior assumption of adiabaticity.Keywords
All Related Versions
This publication has 16 references indexed in Scilit:
- MAXIMA-1: A Measurement of the Cosmic Microwave Background Anisotropy on Angular Scales of 10[arcmin]–5°The Astrophysical Journal, 2000
- Limits on isocurvature fluctuations from Boomerang and MAXIMAPhysical Review D, 2000
- Correlated mixtures of adiabatic and isocurvature cosmological perturbationsPhysical Review D, 2000
- A flat Universe from high-resolution maps of the cosmic microwave background radiationNature, 2000
- Correlated adiabatic and isocurvature perturbations from double inflationPhysical Review D, 1999
- An Isocurvature Cold Dark Matter Cosmogony. II. Observational TestsThe Astrophysical Journal, 1999
- Non-Gaussian isocurvature perturbations from inflationPhysical Review D, 1997
- Isocurvature perturbations in multiple inflationary modelsPhysical Review D, 1994
- Theory of cosmological perturbationsPhysics Reports, 1992
- Cosmic background temperature anisotropy in a minimal isocurvature model for galaxy formationThe Astrophysical Journal, 1987