We report on the status of our effort to constrain the nature of dark energy through the evolution of the cluster mass function. Chandra temperature profiles for 31 clusters from a local cluster sample are shown. The X-ray appearance of the proto supermassive binary black hole at the center of the cluster Abell 400 is described. Preliminary weak lensing results obtained with Megacam@MMT for a redshift $z=0.5$ cluster from a distant cluster sample are given
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Reiprich, T., Hudson, D., Erben, T., Sarazin, C. (2007). Studying the Nature of Dark Energy with Galaxy Clusters. In: Aschenbach, B., Burwitz, V., Hasinger, G., Leibundgut, B. (eds) Relativistic Astrophysics Legacy and Cosmology – Einstein’s. ESO Astrophysics Symposia. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-74713-0_80
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DOI: https://doi.org/10.1007/978-3-540-74713-0_80
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