Let us imagine for the sake of this section, that `cosmology' is
synonymous with the search for the values of a number of
parameters which describe the properties of the Universe. Figure
3 appears to show that avoiding any detailed statistical
arguments here, and just sticking to round numbers (and
remembering that there are tight upper limits at higher values
of l, so that the power spectrum really does have to come down
again). Since the standard CDM model has the main peak at l 220,
and it is pushed to smaller scales in open models, then it is
hard for tot to be less than, say, 0.3. Rigorous studies (e.g. )
arrive at similar conclusions. The height of the peak is
somewhat higher than predicted for sCDM, but entirely consistent
with several variants (2) Currently popular models with a
cosmological constant tend to provide perfectly good fits to the
CMB (in addition to large-scale clustering of galaxies and the
supernovae results ). The curve plotted in Figure 3, shows one
such flat model with = 0.6 and a Hu