THE PRIMORDIAL LITHIUM ABUNDANCE

The D lines of Li I in extreme Population II stars better than 5500 K are highly temperature sensitive because lithium is nearly all ionized . A one-dimensional model atmosphere represents a space and time avera ge over the actual three-dimensional, moving, hot and cold convective structure. Neutral Li does not have the average behavior represented b y the one-dimensional model. Lithium is overionized by a factor of 10 so that the Li abundance computed from a one-dimensional model is too small by this same factor. Consequently, log (N-Li/N-total + 12 > 3.0. This higher Li abundance resolves the only discrepancy in the radiati vely driven cosmological model of the universe previously discussed by Kurucz. Because the baryon density is high enough to produce a flat, or nearly flat, universe, the number of stars can increase by a factor of 10, and the amount of radiation given off by those stars in the fi rst billion years can increase by a factor of 10 over what is possible with a low baryon density. This model can explain the formation of Po pulation III stars, globular clusters, galaxies, quasars, voids, galax y clusters, streaming, and large-scale structure. It can explain isola ted galactic evolution and morphology including bulges, disks, and abu ndances.