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Hubble Frontier Fields: systematic errors in strong lensing models of galaxy clusters – implications for cosmography (2017)
Journal Article
Acebron, A., Jullo, E., Limousin, M., Tilquin, A., Giocoli, C., Jauzac, M., …Richard, J. (2017). Hubble Frontier Fields: systematic errors in strong lensing models of galaxy clusters – implications for cosmography. Monthly Notices of the Royal Astronomical Society, 470(2), 1809-1825. https://doi.org/10.1093/mnras/stx1330

Strong gravitational lensing by galaxy clusters is a fundamental tool to study dark matter and constrain the geometry of the Universe. Recently, the Hubble Space Telescope Frontier Fields programme has allowed a significant improvement of mass and ma... Read More about Hubble Frontier Fields: systematic errors in strong lensing models of galaxy clusters – implications for cosmography.

A test for skewed distributions of dark matter, and a possible detection in galaxy cluster Abell 3827 (2017)
Journal Article
Taylor, P., Massey, R., Jauzac, M., Courbin, F., Harvey, D., Joseph, R., & Robertson, A. (2017). A test for skewed distributions of dark matter, and a possible detection in galaxy cluster Abell 3827. Monthly Notices of the Royal Astronomical Society, 468(4), 5004-5013. https://doi.org/10.1093/mnras/stx855

Simulations of self-interacting dark matter predict that dark matter should lag behind galaxies during a collision. If the interaction is mediated by a high-mass force carrier, the distribution of dark matter can also develop asymmetric dark matter t... Read More about A test for skewed distributions of dark matter, and a possible detection in galaxy cluster Abell 3827.

Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations (2017)
Journal Article
Natarajan, P., Chadayammuri, U., Jauzac, M., Richard, J., Kneib, J., Ebeling, H., …Vogelsberger, M. (2017). Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations. Monthly Notices of the Royal Astronomical Society, 468(2), 1962-1980. https://doi.org/10.1093/mnras/stw3385

We map the lensing-inferred substructure in the first three clusters observed by the Hubble Space Telescope Frontier Fields (HSTFF) Initiative: Abell 2744 (z = 0.308), MACSJ 0416, (z = 0.396) and MACSJ 1149 (z = 0.543). Statistically resolving dark m... Read More about Mapping substructure in the HST Frontier Fields cluster lenses and in cosmological simulations.

Abell 2744: too much substructure for ΛCDM? (2017)
Journal Article
Schwinn, J., Jauzac, M., Baugh, C., Bartelmann, M., Eckert, D., Harvey, D., …Massey, R. (2017). Abell 2744: too much substructure for ΛCDM?. Monthly Notices of the Royal Astronomical Society, 467(3), 2913-2923. https://doi.org/10.1093/mnras/stx277

The massive substructures found in Abell 2744 by Jauzac et al. present a challenge to the cold dark matter paradigm due to their number and proximity to the cluster centre. We use one of the biggest N-body simulations, the Millennium XXL, to investig... Read More about Abell 2744: too much substructure for ΛCDM?.