3 papers
astro-ph.CO2025
Reconstructing spatially-varying multiplicative bias for Stage IV weak lensing galaxy surveys with a quadratic estimator
Konstantinos Tanidis, David Alonso, Lance Miller +1
We present a quadratic estimator that detects and reconstructs spatially-varying multiplicative () bias in weak lensing shear measurements, by exploiting the mode coupling…
astro-ph.GA2025
Measuring the Evolution of Bulge, Disk and Colour Gradients in HST Observations of Galaxies with 3D Modelling
N. Welikala, L. Miller, A. N. Taylor +1
We measure galaxy structural properties and colour gradients using HST images to trace the evolution of galaxy components. We jointly fit 3D bulge and disk models to 2505 galaxies…
astro-ph.CO2025
Exploring the Masses of the Two Most Distant Gravitational Lensing Clusters at the Cosmic Noon
Jinhyub Kim, M. James Jee, Stefano Andreon +4
Observations over the past decade have shown that galaxy clusters undergo the most transformative changes during the epoch. However, challenges such as low lensing ef…