activity
20082018
most citedKiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing

1k citations · 8.8k across the 68 of their papers we have counts for

collaborators

68 papers

astro-ph.CO2018★ 4 cited

Joint cluster reconstructions: Combining free-form lensing and X-rays

Korbinian Huber, Celine Tchernin, Julian Merten +2

Galaxy clusters provide a multitude of observational data across wavelengths and their structure and morphology are of considerable interest in cosmology as well as astrophysics. W…

astro-ph.CO2018★ 68 cited

Distinguishing standard and modified gravity cosmologies with machine learning

Austin Peel, Florian Lalande, Jean-Luc Starck +5

We present a convolutional neural network to classify distinct cosmological scenarios based on the statistically similar weak-lensing maps they generate. Modified gravity (MG) mode…

astro-ph.CO2018★ 44 cited

On the dissection of degenerate cosmologies with machine learning

Julian Merten, Carlo Giocoli, Marco Baldi +5

Based on the DUSTGRAIN-pathfinder suite of simulations, we investigate observational degeneracies between nine models of modified gravity and massive neutrinos. Three types of mach…

astro-ph.CO2018★ 15 cited

Weak lensing shear estimation beyond the shape-noise limit: a machine learning approach

Ofer M. Springer, Eran O. Ofek, Yair Weiss +1

Weak lensing shear estimation typically results in per galaxy statistical errors significantly larger than the sought after gravitational signal of only a few percent. These statis…

astro-ph.CO2018★ 30 cited

CLUMP-3D: Three-dimensional Shape and Structure of 20 CLASH Galaxy Clusters from Combined Weak and Strong Lensing

I-Non Chiu, Keiichi Umetsu, Mauro Sereno +5

We perform a three-dimensional triaxial analysis of 16 X-ray regular and 4 high-magnification galaxy clusters selected from the CLASH survey by combining two-dimensional weak-lensi…

astro-ph.CO2018★ 62 cited

The Projected Dark and Baryonic Ellipsoidal Structure of 20 CLASH Galaxy Clusters

Keiichi Umetsu, Mauro Sereno, Sut-Ieng Tam +24

We reconstruct the two-dimensional (2D) matter distributions in 20 high-mass galaxy clusters selected from the CLASH survey by using the new approach of performing a joint weak len…