Open AccessMicrowave background constraints on inflationary parameters
Author(s) -
Leach Samuel M.,
Liddle Andrew R.
Publication year - 2003
Publication title -
monthly notices of the royal astronomical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.058
H-Index - 383
eISSN - 1365-2966
pISSN - 0035-8711
DOI - 10.1046/j.1365-8711.2003.06445.x
Subject(s) - physics , cosmic microwave background , inflation (cosmology) , spectral density , cosmic background radiation , amplitude , constraint (computer aided design) , anisotropy , astrophysics , cosmic cancer database , spectral line , theoretical physics , statistical physics , astronomy , quantum mechanics , statistics , mechanical engineering , engineering , mathematics
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 ε 1 < 0.057 . The technique we use for parametrizing inflationary spectra may become essential once the data quality improves significantly.