A Different Dark Matter Potential for Modeling Cluster Atmospheres

Details A Different Dark Matter Potential for Modeling Cluster Atmospheres A Different Dark Matter Potential for Modeling Cluster Atmospheres

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.0505m&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #05.05; Bulletin of the American Astronomical Society, Vol. 34, p.1097

Astronomy and Astrophysics

Astronomy

Scientific paper

The Chandra satellite has shown us that the distribution of the X-ray emitting medium in clusters of galaxies is seldom regular and homogeneous. Nevertheless, azimuthally averaged models of clusters remain both popular and useful in describing the gross properties of the medium. These models often rely on an underlying dark matter potential with either a constant density core (the "β -model") or a cuspy core derived from N-body simulations (the NFW profile). As a replacement for these I will suggest a generalized potential with a single adjustable parameter sensitive to the slope of the matter density. This approach allows rough constraints on the shape of the dark matter potential even in situations where temperature resolution is sparse.

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