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Catching a bullet: direct evidence for the existence of dark matter
D. Clowe, S. W. Randall, M. Markevitch
We present X-ray and weak lensing observations of the merging cluster system 1E0657-556. Due to the recently collision of a merging subcluster with the main cluster, the X-ray plas…
The build-up of the colour-magnitude relation in galaxy clusters since z~0.8
Gabriella De Lucia, Bianca M. Poggianti, Alfonso Aragon-Salamanca +11
Using galaxy clusters from the ESO Distant Cluster Survey, we study how the distribution of galaxies along the colour-magnitude relation has evolved since z~0.8. While red-sequence…
The Shear TEsting Programme 2: Factors affecting high precision weak lensing analyses
Richard Massey, Catherine Heymans, Joel Berge +28
The Shear TEsting Programme (STEP) is a collaborative project to improve the accuracy and reliability of weak lensing measurement, in preparation for the next generation of wide-fi…
A direct empirical proof of the existence of dark matter
Douglas Clowe, Marusa Bradac, Anthony H. Gonzalez +4
We present new weak lensing observations of 1E0657-558 (z=0.296), a unique cluster merger, that enable a direct detection of dark matter, independent of assumptions regarding the n…
Strong and weak lensing united III: Measuring the mass distribution of the merging galaxy cluster 1E0657-56
Marusa Bradac, Douglas Clowe, Anthony H. Gonzalez +7
The galaxy cluster 1E0657-56 (z = 0.296) is remarkably well-suited for addressing outstanding issues in both galaxy evolution and fundamental physics. We present a reconstruction o…
The X-ray properties of optically-selected z>0.6 clusters in the ESO Distant Cluster Survey
O. Johnson, P. Best, D. Zaritsky +11
We present XMM-Newton observations of three optically-selected z > 0.6 clusters from the ESO Distant Cluster Survey (EDisCS), comprising the first results of a planned X-ray survey…