Studying the Nature of Dark Energy with Galaxy Clusters

Details Studying the Nature of Dark Energy with Galaxy Clusters Studying the Nature of Dark Energy with Galaxy Clusters

2006-03-06

arxiv.org/abs/astro-ph/0603129v1

Astronomy and Astrophysics

Astrophysics

5 pages, to appear in: Aschenbach, B., Burwitz, V., Hasinger, G., Leibundgut, B. (eds.), Relativistic Astrophysics and Cosmolo

Scientific paper

10.1002/asna.200740009

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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