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Modules for experiments in stellar astrophysics (MESA): time-dependent convection, energy conservation, automatic differentiation, and infrastructure
We update the capabilities of the open-knowledge software instrument Modules for
Experiments in Stellar Astrophysics (MESA). The new auto _ diff module implements …
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
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 …
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
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 …
point correlation function (2PCF) along with a deep understanding of systematics that affect …
Mitigation of the brighter-fatter effect in the LSST camera
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 …
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
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 …
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
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 …
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 …
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
Abstract The James Webb Space Telescope (JWST) marks a new era of astronomical
observation and discovery, providing unrivaled precision in various measurements …
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
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 …
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
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 …
Energy Survey (DES Y6) imaging data. This dataset is the final release from DES, spanning …