Galaxy Clusters and Self-Interacting Dark Matter

Details Galaxy Clusters and Self-Interacting Dark Matter Galaxy Clusters and Self-Interacting Dark Matter

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aas...19910012a&link_type=abstract

American Astronomical Society, 199th AAS Meeting, #100.12; Bulletin of the American Astronomical Society, Vol. 33, p.1459

Astronomy and Astrophysics

Astronomy

Scientific paper

The structure of dark matter halos holds clues to the nature of the constituent dark matter particles. If the particle species self-interacts, as proposed by Spergel and Steinhardt (2000), this will alter the distribution of dark matter on scales that can be probed with the current generation of telescopes. We have assembled a sample of relaxed clusters from the archive of the Chandra X-ray Observatory. Using the deprojection and modelling techniques described in Arabadjis, Bautz, and Garmire (2001), we calculate dark matter halo core sizes or upper limits. We compare this distribution to the results of recent large-scale structure simulations to constrain the dark matter self-interaction cross section.

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