The combination of detections of anisotropy in the Cosmic Microwave
Background radiation and observations of the large-scale distribution of
galaxies probes the primordial density fluctuations of the universe on spatial
scales varying by three orders of magnitude. These data are found to be
inconsistent with the predictions of several popular cosmological models.
Agreement between the data and the Cold + Hot Dark Matter model, however,
suggests that a significant fraction of the matter in the universe may consist
of massive neutrinos.Comment: 20 pages including 4 color postscript figures. Full-size figures and
data compilation available at
http://cfpa.berkeley.edu/cmbserve/fluctuations/figures.htm
