We have good evidence that most of the Universe is made of unknown,
non-baryonic stuff - dark matter.
Pieces of evidence come from
Some possible candidates besides baryonic dark matter include
- galaxy rotation curves,
- gravitional lensing and X-ray measurements of clusters,
- large scale flows, and
- the cosmic microwave background anisotropies at 1 deg.
Some recent ideas on the small-scale properties of cold dark matter may
be found in my talk given at TAUP 99:
Small-scale structure of cold dark matter
- a cosmological constant,
- supersymmeric dark matter (neutralinos),
- superheavy relics (WIMPzillas),
- primordial black holes,
- massive neutrinos.
Dominik J. Schwarz
Last modified: February 4, 2000