A detailed Chandra study of the luminous lensing cluster MS2137.3-2353

Mathematics – Logic

Scientific paper

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Chandra Proposal Id #05800713

Scientific paper

We request a deep 100ks observation of MS2137.3-2353 (z=0.313), one of the most dynamically relaxed, high luminosity galaxy clusters known and one of the most beautiful examples in nature of strong gravitational lensing. The proposed Chandra observation will be used in combination with available strong and weak lensing data and a detailed velocity dispersion profile for the central galaxy to obtain unprecedentedly tight constraints on the total (dark+luminous) matter distribution in the cluster and, especially, the central density cusp. The observations will also provide exceptionally precise, robust results on the variation of the X-ray gas mass fraction with radius, which will be important for cosmological studies.

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