Author
Chris Blake
Recent research
- Physics & SpaceOpen access
Cosmological Constraints from Full-scale Clustering and Galaxy–Galaxy Lensing with DESI DR1
Abstract We present constraints on cosmic structure growth from the analysis of galaxy clustering and galaxy–galaxy lensing with galaxies from the Dark Energy Spectroscopic Instrument (DESI) Data Release 1. Our analysis includes four samples drawn from the Bright Galaxy Survey (B...
- Physics & SpaceOpen access
The Power of DESI for Photometric Redshift Calibration: A Case Study with KiDS-1000
Accurate redshift estimates are a critical requirement for weak lensing surveys and one of the main uncertainties in constraints on dark energy and large-scale cosmic structure. In this paper, we study the potential to calibrate photometric redshift (photo-z) distributions for gr...
- Physics & SpaceOpen access
The velocity coherence scale: a novel probe of cosmic homogeneity and a potential standard ruler
We introduce the velocity coherence scale <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:msub> <mml:mi>R</mml:mi> <mml:mi>v</mml:mi> </mml:msub> </mml:math> , the scale at which the spherical volume average of the trace of the velocity correlation...