1k citations · 2.9k across the 20 of their papers we have counts for
20 papers
Brightest Cluster Galaxy ellipticity as proxy for halo shape: Orientation bias, assembly bias, and potential selection effects in SZ-selected clusters
Radhakrishnan Srinivasan, Tae-hyeon Shin, Anja von der Linden +93
The orientation of triaxial galaxy clusters with respect to the line-of-sight is expected to be one of the prime sources of scatter and potential bias in optical observables (e.g.,…
Cosmological Constraints from Gas Mass Fractions of Massive, Relaxed Galaxy Clusters
Adam B. Mantz, Steven W. Allen, Rebecca E. A. Canning +14
We present updated cosmological constraints from measurements of the gas mass fractions () of massive, dynamically relaxed galaxy clusters. Our new data set has greater le…
Brightest Cluster Galaxies Trace Weak Lensing Mass Bias and Halo Triaxiality in The Three Hundred Project
Ricardo Herbonnet, Adrian Crawford, Camille Avestruz +6
Galaxy clusters have a triaxial matter distribution. The weak-lensing signal, an important part in cosmological studies, measures the projected mass of all matter along the line-of…
CCCP and MENeaCS: (updated) weak-lensing masses for 100 galaxy clusters
Ricardo Herbonnet, Cristóbal Sifón, Henk Hoekstra +7
Large area surveys have detected significant samples of galaxy clusters that can be used to constrain cosmological parameters, provided that the masses of the clusters are measured…
Ellipticity of Brightest Cluster Galaxies as tracer of halo orientation and weak-lensing mass bias
Ricardo Herbonnet, Anja von der Linden, Steve W. Allen +4
Weak-lensing measurements of the masses of galaxy clusters are commonly based on the assumption of spherically symmetric density profiles. Yet, the cold dark matter model predicts…
Euclid Preparation IV. Impact of undetected galaxies on weak-lensing shear measurements
Euclid Collaboration, N. Martinet, T. Schrabback +22
In modern weak-lensing surveys, the common approach to correct for residual systematic biases in the shear is to calibrate shape measurement algorithms using simulations. These sim…
Towards emulating cosmic shear data: Revisiting the calibration of the shear measurements for the Kilo-Degree Survey
Arun Kannawadi, Henk Hoekstra, Lance Miller +9
Exploiting the full statistical power of future cosmic shear surveys will necessitate improvements to the accuracy with which the gravitational lensing signal is measured. We prese…
280 one-opposition near-Earth asteroids recovered by the EURONEAR with the Isaac Newton Telescope
O. Vaduvescu, L. Hudin, T. Mocnik +80
One-opposition near-Earth asteroids (NEAs) are growing in number, and they must be recovered to prevent loss and mismatch risk, and to improve their orbits, as they are likely to b…
The galaxy-subhalo connection in low-redshift galaxy clusters from weak gravitational lensing
Cristóbal Sifón, Ricardo Herbonnet, Henk Hoekstra +2
We measure the gravitational lensing signal around satellite galaxies in a sample of galaxy clusters at by combining high-quality imaging data from the Canada-France-Hawai…
A first constraint on the average mass of ultra diffuse galaxies from weak gravitational lensing
Cristóbal Sifón, Remco F. J. van der Burg, Henk Hoekstra +2
The recent discovery of thousands of ultra diffuse galaxies (UDGs) in nearby galaxy clusters has opened a new window into the process of galaxy formation and evolution. Several sce…
A KiDS weak lensing analysis of assembly bias in GAMA galaxy groups
Andrej Dvornik, Marcello Cacciato, Konrad Kuijken +19
We investigate possible signatures of halo assembly bias for spectroscopically selected galaxy groups from the GAMA survey using weak lensing measurements from the spatially overla…
KiDS-450: Testing extensions to the standard cosmological model
Shahab Joudaki, Alexander Mead, Chris Blake +16
We test extensions to the standard cosmological model with weak gravitational lensing tomography using 450 deg of imaging data from the Kilo Degree Survey (KiDS). In these exte…
A study of the sensitivity of shape measurements to the input parameters of weak lensing image simulations
Henk Hoekstra, Massimo Viola, Ricardo Herbonnet
Improvements in the accuracy of shape measurements are essential to exploit the statistical power of planned imaging surveys that aim to constrain cosmological parameters using wea…
Shear Nulling after PSF Gaussianisation: moment-based weak lensing measurements with subpercent noise bias
Ricardo Herbonnet, Axel Buddendiek, Konrad Kuijken
Current optical imaging surveys for cosmology are covering large areas of sky. To exploit the statistical power of these surveys for weak lensing measurements requires shape measur…
KiDS-450: Cosmological parameter constraints from tomographic weak gravitational lensing
H. Hildebrandt, M. Viola, C. Heymans +33
We present cosmological parameter constraints from a tomographic weak gravitational lensing analysis of ~450deg of imaging data from the Kilo Degree Survey (KiDS). For a flat $…
Calibration of weak-lensing shear in the Kilo-Degree Survey
Ian Fenech Conti, Ricardo Herbonnet, Henk Hoekstra +3
We describe and test the pipeline used to measure the weak lensing shear signal from the Kilo Degree Survey (KiDS). It includes a novel method of `self-calibration' that partially…
Gravitational Lensing Analysis of the Kilo Degree Survey
Konrad Kuijken, Catherine Heymans, Hendrik Hildebrandt +32
The Kilo-Degree Survey (KiDS) is a multi-band imaging survey designed for cosmological studies from weak lensing and photometric redshifts. It uses the ESO VLT Survey Telescope wit…
Evolution of the luminosity-to-halo mass relation of LRGs from a combined SDSS-DR10+RCS2 analysis
Edo van Uitert, Marcello Cacciato, Henk Hoekstra +1
We study the evolution of the luminosity-to-halo mass relation of Luminous Red Galaxies (LRGs). We select a sample of 52 000 LOWZ and CMASS LRGs from the Baryon Oscillation Spectro…
The Canadian Cluster Comparison Project: detailed study of systematics and updated weak lensing masses
Henk Hoekstra, Ricardo Herbonnet, Adam Muzzin +4
Masses of clusters of galaxies from weak gravitational lensing analyses of ever larger samples are increasingly used as the reference to which baryonic scaling relations are compar…
Searching for large-scale structures around high-redshift radio galaxies with Herschel
E. E. Rigby, N. A. Hatch, H. J. A. Röttgering +15
This paper presents the first results of a far-infrared search for protocluster-associated galaxy overdensities using the SPIRE instrument on-board the {\it Herschel} Space Observa…