Modules for experiments in stellar astrophysics (MESA): time-dependent convection, energy conservation, automatic differentiation, and infrastructure

AS Jermyn, EB Bauer, J Schwab… - The Astrophysical …, 2023‏ - iopscience.iop.org
We update the capabilities of the open-knowledge software instrument Modules for
Experiments in Stellar Astrophysics (MESA). The new auto _ diff module implements …

[HTML][HTML] Point spread function modelling for astronomical telescopes: a review focused on weak gravitational lensing studies

TI Liaudat, JL Starck, M Kilbinger - Frontiers in Astronomy and Space …, 2023‏ - frontiersin.org
The accurate modelling of the point spread function (PSF) is of paramount importance in
astronomical observations, as it allows for the correction of distortions and blurring caused …

A general framework for removing point-spread function additive systematics in cosmological weak lensing analysis

T Zhang, X Li, R Dalal, R Mandelbaum… - Monthly Notices of …, 2023‏ - academic.oup.com
Cosmological weak lensing measurements rely on a precise measurement of the shear two-
point correlation function (2PCF) along with a deep understanding of systematics that affect …

Mitigation of the brighter-fatter effect in the LSST camera

A Broughton, Y Utsumi, AAP Malagón… - Publications of the …, 2024‏ - iopscience.iop.org
Thick, fully depleted charge-coupled devices are known to exhibit nonlinear behavior at high
signal levels due to the dynamic behavior of charges collecting in the potential wells of …

Impact of point spread function higher moments error on weak gravitational lensing–II. A comprehensive study

T Zhang, H Almoubayyed… - Monthly Notices of …, 2023‏ - academic.oup.com
Weak lensing is one of the most powerful probes for dark matter and dark energy science,
although it faces increasing challenges in controlling systematic uncertainties as the …

Simulating image coaddition with the Nancy Grace Roman Space Telescope–II. Analysis of the simulated images and implications for weak lensing

M Yamamoto, K Laliotis, E Macbeth… - Monthly Notices of …, 2024‏ - academic.oup.com
One challenge for applying current weak lensing analysis tools to the Nancy Grace Roman
Space Telescope is that individual images will be undersampled. Our companion paper …

Correction of the brighter-fatter effect on the CCDs of Hyper Suprime-Cam

P Astier, N Regnault - Astronomy & Astrophysics, 2023‏ - aanda.org
The brighter-fatter effect affects all CCD sensors to various degrees. Deep-depleted thick
sensors are seriously affected and the measurement of galaxy shapes for cosmic shear …

HybPSF: Hybrid Point-spread Function Reconstruction for the Observed JWST NIRCam Image

L Nie, H Shan, G Li, L Wang, C Cheng… - The Astronomical …, 2024‏ - iopscience.iop.org
Abstract The James Webb Space Telescope (JWST) marks a new era of astronomical
observation and discovery, providing unrivaled precision in various measurements …

Efficient Point-spread Function Modeling with ShOpt. jl: A Point-spread Function Benchmarking Study with JWST NIRCam Imaging

EM Berman, JE McCleary, AM Koekemoer… - The Astronomical …, 2024‏ - iopscience.iop.org
With their high angular resolutions of 30–100 mas, large fields of view, and complex optical
systems, imagers on next-generation optical/near-infrared space observatories, such as the …

Dark Energy Survey Year 6 Results: Cell-based Coadds and Metadetection Weak Lensing Shape Catalogue

M Yamamoto, MR Becker, E Sheldon, M Jarvis… - arxiv preprint arxiv …, 2025‏ - arxiv.org
We present the Metadetection weak lensing galaxy shape catalogue from the six-year Dark
Energy Survey (DES Y6) imaging data. This dataset is the final release from DES, spanning …