Search Results for author: Konrad Kuijken

Found 4 papers, 3 papers with code

KiDS+VIKING-450: Improved cosmological parameter constraints from redshift calibration with self-organising maps

no code implementations8 May 2020 Angus H. Wright, Hendrik Hildebrandt, Jan Luca van den Busch, Catherine Heymans, Benjamin Joachimi, Arun Kannawadi, Konrad Kuijken

We present updated cosmological constraints for the KiDS+VIKING-450 cosmic shear dataset (KV450), estimated using redshift distributions and photometric samples defined using self organising maps (SOMs).

Cosmology and Nongalactic Astrophysics

KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering

1 code implementation20 Jul 2017 Shahab Joudaki, Chris Blake, Andrew Johnson, Alexandra Amon, Marika Asgari, Ami Choi, Thomas Erben, Karl Glazebrook, Joachim Harnois-Deraps, Catherine Heymans, Hendrik Hildebrandt, Henk Hoekstra, Dominik Klaes, Konrad Kuijken, Chris Lidman, Alexander Mead, Lance Miller, David Parkinson, Gregory B. Poole, Peter Schneider, Massimo Viola, Christian Wolf

The complementarity of our observables allows for constraints on modified gravity degrees of freedom that are not simultaneously bounded with either probe alone, and up to a factor of three improvement in the $S_8$ constraint in the extended cosmology compared to KiDS alone.

Cosmology and Nongalactic Astrophysics

CFHTLenS: A Weak Lensing Shear Analysis of the 3D-Matched-Filter Galaxy Clusters

1 code implementation11 Sep 2014 Jes Ford, Ludovic van Waerbeke, Martha Milkeraitis, Clotilde Laigle, Hendrik Hildebrandt, Thomas Erben, Catherine Heymans, Henk Hoekstra, Thomas Kitching, Yannick Mellier, Lance Miller, Ami Choi, Jean Coupon, Liping Fu, Michael J. Hudson, Konrad Kuijken, Naomi Robertson, Barnaby Rowe, Tim Schrabback, Malin Velander

We present the cluster mass-richness scaling relation calibrated by a weak lensing analysis of >18000 galaxy cluster candidates in the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS).

Cosmology and Nongalactic Astrophysics

Cannot find the paper you are looking for? You can Submit a new open access paper.