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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…
Spherical collapse, formation hysteresis and the deeply non-linear cosmological power spectrum
Alexander Mead
I examine differences in non-linear structure formation between cosmological models that share a linear power spectrum in both shape and amplitude, but that differ via their…
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 $…
Slow blue nuclear hypervariables in PanSTARRS-1
A. Lawrence, A. G. Bruce, C. MacLeod +23
We discuss 76 large amplitude transients (Delta-m>1.5) occurring in the nuclei of galaxies, nearly all with no previously known Active Galactic Nucleus (AGN). They have been discov…
Accurate halo-model matter power spectra with dark energy, massive neutrinos and modified gravitational forces
Alexander Mead, Catherine Heymans, Lucas Lombriser +3
We present an accurate non-linear matter power spectrum prediction scheme for a variety of extensions to the standard cosmological paradigm, which uses the tuned halo model previou…
CFHTLenS revisited: assessing concordance with Planck including astrophysical systematics
Shahab Joudaki, Chris Blake, Catherine Heymans +9
We investigate the impact of astrophysical systematics on cosmic shear cosmological parameter constraints from the Canada-France-Hawaii Telescope Lensing Survey (CFHTLenS), and the…