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Brightest cluster galaxy formation in the cluster C0037-2522: flattening of the dark matter cusp

C. Nipoti·M. Stiavelli·L. Ciotti·T. Treu·P. Rosati
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Abstract

The X-ray cluster C0337-2522 at redshift $z=0.59$ hosts in its core a group of five elliptical galaxies. Using N-body simulations we show that a multiple merging event among the five galaxies is expected to take place in the next few Gyrs, forming a central brightest cluster galaxy. We also find indications that dynamical friction heating associated with this event is likely to modify the central slope of the cluster dark matter density profile.

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C. Nipoti, M. Stiavelli, L. Ciotti, T. Treu, P. Rosati. 2003-11-18. Brightest cluster galaxy formation in the cluster C0037-2522: flattening of the dark matter cusp. https://doi.org/10.1007/10995020_95

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