Astronomy and Astrophysics – Astronomy
Scientific paper
May 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008dda....39.1001w&link_type=abstract
American Astronomical Society, DDA meeting #39, #10.01
Astronomy and Astrophysics
Astronomy
Scientific paper
Cold Dark Matter is apparently the dominant component of all structures larger than individual galaxies. Simulations of cosmic evolution predict that its distribution should show a very rich nonlinear structure which agrees with much (but not all) of the available observational information. Techniques for direct detection of Cold Dark Matter in cooled bolometers (for neutralinos) and resonant cavities (for axions) have advanced to the point where a positive result is within reach. In addition, the next generation of gamma-ray telescopes will be sensitive enough to detect annihilation radiation from many plausible kinds of neutralino. In all these cases, the signal to be detected depends sensitively on how the dark matter distribution is structured on meter scales or smaller. Such scales are many orders of magnitude below those that can be studied with conventional N-body methods. I will describe new techniques which may allow these issues to be addressed through simulations of evolution from fully general CDM initial conditions.
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