Constraints on Omega_B, Omega_m and h from MAXIMA and BOOMERANG

Abstract

We analyse the BOOMERANG and MAXIMA results in the context of models with ${\Omega }_{\mathrm{Total}}=1$ and $n_s=1$. We attempt to constrain three other parameters---$h$, ${\Omega }_B$, and ${\Omega }_m$---from these observations. We show that: (a) the value of ${\Omega }_B{h}^2$ is too high to be compatible with primordial nucleosynthesis observations at 95% confidence level (b) universe with age greater than $12\mathrm{Gyr}$ is ruled out at 95% confidence level and (c) the value of ${\Omega }_{m}h$ is too high to be compatible with the shape of the power spectrum of gravitational clustering. In effect, our analysis shows that models with ${\Omega }_{\mathrm{Total}}=1$ and $n_s=1$ are ruled out by BOOMERANG and MAXIMA observations.

9 pages, 3 postscript figure, uses aassty, submitted to ApJL

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• The Infuence of Omega_baryon on High-Redshift Structure
• Mapping the Cosmological Confidence Ball Surface
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