Future Cosmic Microwave Background Constraints to the Baryon Density
Loading...
Date
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Description
We discuss what can be learned about the baryon density from an all-sky map of the cosmic microwave background (CMB) with sub-degree angular resolution. With only minimal assumptions about the primordial spectrum of density perturbations and the values of other cosmological parameters, such a CMB map should be able to distinguish between a Universe with a baryon density near 0.1 and a baryon-dominated Universe. With additional reasonable assumptions, it is conceivable that such measurements will constrain the baryon density to an accuracy similar to that obtained from BBN calculations.
4 pages. To appear in the proceedings of the Cosmic Abundances Conference, College Park, MD, October 9--11, 1995, edited by S. S. Holt and G. Sonneborn (AIP, New York, 1996)
4 pages. To appear in the proceedings of the Cosmic Abundances Conference, College Park, MD, October 9--11, 1995, edited by S. S. Holt and G. Sonneborn (AIP, New York, 1996)