KiDS-Legacy: Consistency of cosmic shear measurements and joint cosmological constraints with external probes

Understand

We present a cosmic shear consistency analysis of the final data release from the Kilo-Degree Survey (KiDS-Legacy).

• By adopting three tiers of consistency metrics, we compare cosmological constraints between subsets of the KiDS-Legacy dataset split by redshift, angular scale, galaxy colour and spatial region.
• We also review a range of two-point cosmic shear statistics.
• With the data passing all our consistency metric tests, we demonstrate that KiDS-Legacy is the most internally consistent KiDS catalogue to date.