Gravitational lensing analysis of the Kilo-Degree Survey
Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 454:4 (2015) 3500-3532
The masses of satellites in GAMA galaxy groups from 100 square degrees of KiDS weak lensing data
Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 454:4 (2015) 3938-3951
RCSLenS: Cosmic Distances from Weak Lensing
ArXiv 1512.03627 (2015)
Abstract:
In this paper we present results of applying the shear-ratio method to the RCSLenS data. The method takes the ratio of the mean of the weak lensing tangential shear signal about galaxy clusters, averaged over all clusters of the same redshift, in multiple background redshift bins. In taking a ratio the mass-dependency of the shear signal is cancelled-out leaving a statistic that is dependent on the geometric part of the lensing kernel only. We apply this method to 535 clusters and measure a cosmology-independent distance-redshift relation to redshifts z~1. In combination with Planck data the method lifts the degeneracies in the CMB measurements, resulting in cosmological parameter constraints of OmegaM=0.31 +/- 0.10 and w0 = -1.02 +/- 0.37, for a flat wCDM cosmology.CFHTLenS: weak lensing constraints on the ellipticity of galaxy-scale matter haloes and the galaxy-halo misalignment
Monthly Notices of the Royal Astronomical Society Oxford University Press (OUP) 454:2 (2015) 1432-1452
The Global Implications of the Hard Excess II: Analysis of the Local population of Radio Quiet AGN
ArXiv 1511.07107 (2015)