82 citations · 302 across the 10 of their papers we have counts for
4 papers · 1 filter
Commissioning of the Vera C. Rubin Observatory
Pierre-François Léget
The Vera C. Rubin Observatory began commissioning its camera, LSSTCam, in April 2025, with the Legacy Survey of Space and Time (LSST) scheduled to start in 2026. A primary science…
Deep Learning for Point Spread Function Modeling in Cosmology
Dayana Andrea Henao Arbeláez, Pierre-François Léget, Andrés Alejandro Plazas Malagón
We present the development of a data-driven, AI-based model of the Point Spread Function (PSF) that achieves higher accuracy than the current state-of-the-art approach, "PSF in the…
Improving the astrometric solution of the Hyper Suprime-Cam with anisotropic Gaussian processes
P. -F. Léget, P. Astier, N. Regnault +5
We study astrometric residuals from a simultaneous fit of Hyper Suprime-Cam images. We aim to characterize these residuals and study the extent to which they are dominated by atmos…
Dark Energy Survey Year 3 Results: Point-Spread Function Modeling
M. Jarvis, G. M. Bernstein, A. Amon +79
We introduce a new software package for modeling the point-spread function (PSF) of astronomical images, called Piff (PSFs In the Full FOV), which we apply to the first three years…