ANISOTROPIES OF THE COSMIC MICROWAVE BACKGROUND IN NONSTANDARD COLD DARK MATTER MODELS

We rediscuss small angular scale cosmic microwave anisotropies in flat, vacuum-dominated, cold dark matter cosmological models which fit large-scale structure observations and are consistent with a high value for the Hubble constant. We also present new predictions for CDM models in which the large-scale power is boosted via a high baryon content and low H0. Both classes of models are consistent with current limits: an improvement in sensitivity by a factor of about 3 for experiments which probe angular scales between 7' and 1-degrees is required, in the absence of very early reionization, to test boosted CDM models for large-scale structure formation.