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BOOMERanG Data Suggest a Purely Baryonic Universe

Stacy McGaugh

Department of Astronomy, University of Maryland, College Park, MD 20742-2421


The amplitudes of peaks in the angular power spectrum of anisotropies in the microwave background radiation depend on the mass content of the universe. The second peak should be prominent when cold dark matter is dominant, but is depressed when baryons dominate. Recent microwave background data are consistent with a purely baryonic universe with $\Om = \Ob$ and $\OL \approx 1$.

cosmic microwave background -- cosmology: theory -- early universe

Author's Note: This conversion to HTML from AASTeX suffered some peculiarities. The PDF and LANL versions are much more readable.


Stacy Mcgaugh