Can inflationary models of cosmic perturbations evade the secondary oscillation test?
arXiv:astro-ph/9908061 · doi:10.1103/PhysRevD.64.023514
Abstract
We consider the consequences of an observed Cosmic Microwave Background (CMB) temperature anisotropy spectrum containing no secondary oscillations. While such a spectrum is generally considered to be a robust signature of active structure formation, we show that such a spectrum {\em can} be produced by (very unusual) inflationary models or other passive evolution models. However, we show that for all these passive models the characteristic oscillations would show up in other observable spectra. Our work shows that when CMB polarization and matter power spectra are taken into account secondary oscillations are indeed a signature of even these very exotic passive models. We construct a measure of the observability of secondary oscillations in a given experiment, and show that even with foregrounds both the MAP and \pk satellites should be able to distinguish between models with and without oscillations. Thus we conclude that inflationary and other passive models can {\em not} evade the secondary oscillation test.
Final version accepted for publication in PRD. Minor improvements have been made to the discussion and new data has been included. The conclusions are unchagned
References in corpus (5)
- A Flat Universe from High-Resolution Maps of the Cosmic Microwave Background Radiation
- MAXIMA-1: A Measurement of the Cosmic Microwave Background Anisotropy on angular scales of 10 arcminutes to 5 degrees
- Foregrounds and Forecasts for the Cosmic Microwave Background
- A Measurement of the Angular Power Spectrum of the Microwave Background Made from the High Chilean Andes
- Detection of Cosmic Microwave Background Structure in a Second Field with the Cosmic Anisotropy Telescope