Options for cosmology at redshifts above one

Abstract

We show that detailed exploration of the $1 1$ region, one is thus currently unable to ascertain whether the universe is accelerating or decelerating between $z=1$ and $z=2$. To be able to visualize the supernovae and radio galaxy data simultaneously, we present a representation of the radio galaxy data in terms of an equivalent apparent magnitude Hubble diagram. We discuss briefly some implications of the anisotropies in the cosmic microwave background for the conformal theory, and show that in that theory fluctuations which set in at around nucleosynthesis can readily generate the first peak in the anisotropy data.