The Core Dark Matter Profile of the Radio-Quiet Cluster A3827

Details The Core Dark Matter Profile of the Radio-Quiet Cluster A3827 The Core Dark Matter Profile of the Radio-Quiet Cluster A3827

Sep 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006cxo..prop.2235z&link_type=abstract

Chandra Proposal ID #08800836

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Chandra Proposal Id #08800836

Scientific paper

Competing theoretical models of the radial profiles of dark matter halos reveal their differences especially in the central regions of the halos. Typically clusters that are observed to be relaxed on radial scales of several 100 kpc exhibit disturbed X-ray and radio morphologies within their cores. We have identified a promising target, A3827, that does not possess a central radio source and appears to be very relaxed from inspection of its XMM image. We propose a 50 ks observation to obtain a precise measurement of the radial mass profile down to ~0.015 r_vir, or as far down as Chandra reveals the cluster to be undisturbed. The radial profile will be compared to theoretical models, particularly pure NFW and adiabatic contraction, as well as profiles obtained for other clusters.

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