Microwave background constraints on inflationary parameters

Abstract

We use a compilation of cosmic microwave anisotropy data (including the recent VSA, CBI and Archeops results), supplemented with an additional constraint on the expansion rate, to directly constrain the parameters of slow-roll inflation models. We find good agreement with other papers concerning the cosmological parameters, and display constraints on the power spectrum amplitude from inflation and the first two slow-roll parameters, finding in particular that ${\epsilon }_1<0.057$. The technique we use for parametrizing inflationary spectra may become essential once the data quality improves significantly.

6 pages LaTeX file with figures incorporated. Major revisions including incorporation of new datasets (CBI and Archeops). Slow-roll inflation module for use with the CAMB program can be found at http://astronomy.cpes.susx.ac.uk/~sleach/inflation/

References in corpus (1)

• The Cosmic Microwave Background Anisotropy Power Spectrum measured by Archeops

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