Constraints on ΩB, Ωm, and h from MAXIMA and BOOMERANG

Abstract

We analyze the BOOMERANG and MAXIMA results in the context of simplest inflationary universes: ΩTotal=1, ns~=1. We attempt to constrain three other parameters-h, ΩB, and Ωm-from these observations. We show that (1) the data are consistent with the values of Ωm and h inferred from other observations and (2) the value of ΩBh2 is too high to be compatible with big bang nucleosynthesis observations at the 2 σ level for ns=1. We also include two cosmic background imager (CBI) band powers in our analysis. However, the inclusion of CBI band powers doesn't affect our conclusions.