516 citations · 2.1k across the 32 of their papers we have counts for
4 papers · 1 filter
Abell 2744: Too much substructure for Lambda CDM?
J. Schwinn, M. Jauzac, C. M. Baugh +5
The massive substructures found in Abell 2744 by Jauzac et al. (2016) present a challenge to the cold dark matter paradigm due to their number and proximity to the cluster centre.…
Looking for dark matter trails in colliding galaxy clusters
David Harvey, Andrew Robertson, Richard Massey +1
If dark matter interacts, even weakly, via non-gravitational forces, simulations predict that it will be preferentially scattered towards the trailing edge of the halo during colli…
The Extraordinary Amount of Substructure in the Hubble Frontier Fields Cluster Abell 2744
M. Jauzac, D. Eckert, J. Schwinn +21
We present a joint optical/X-ray analysis of the massive galaxy cluster Abell 2744 (z=0.308). Our strong- and weak-lensing analysis within the central region of the cluster, i.e.,…
Systematic or Signal? How dark matter misalignments can bias strong lensing models of galaxy clusters
David Harvey, Jean-Paul Kneib, Mathilde Jauzac
We explore how assuming that mass traces light in strong gravitational lensing models can lead to systematic errors in the predicted position of multiple images. Using a model base…